Lead acid Battery

Lead acid Battery

  • OPzV vs AGM Battery Comparison

    The OPzV2-200 OPzV tubular gel battery and standard AGM VRLA batteries represent two fundamentally different philosophies in energy storage: AGM offers lower upfront cost, while OPzV tubular gel delivers 3–5x longer cycle life and 20+ year float life. For solar energy storage projects with a 5+ year operational horizon, the OPzV2-200 OPzV consistently outperforms AGM on total cost of ownership — even though the upfront investment is higher. This direct comparison examines the technical and economic differences that matter for project developers and system integrators.

    OPzV2-200 OPzV Battery: Complete Specifications

    Specification Value
    Model OPzV2-200
    Voltage 2V
    Capacity (C10) 200Ah
    Dimensions (L×W×H) 103×206×354mm
    Weight 17.30kg
    Float Life 20+ years @ 25°C
    Operating Temp -40°C to +60°C
    Terminal φ20-M8
    Certification ISO 9001, CE, IEC 60896, DIN 40739

    Why OPzV2-200 OPzV Tubular Gel Outperforms AGM

    There are three fundamental engineering differences between OPzV tubular gel and standard AGM batteries that determine real-world performance:

    1. Tubular positive plates — The die-cast Pb-Ca alloy spines enclosed in fiberglass gauntlet tubes prevent positive active material shedding, the primary failure mode in flat-plate VRLA batteries. This allows OPzV2-200 to sustain deep cycling for decades.
    2. Nano-gel electrolyte — High-purity silica gel immobilizes the acid, preventing stratification and eliminating dry-out. Unlike AGM’s glass mat, gel maintains saturation throughout the battery’s life.
    3. Pb-Ca alloy grid corrosion rate — The OPzV2-200’s grid corrodes at approximately 1/10th the rate of antimony-containing alloys used in flooded batteries, enabling 20+ year design life.

    OPzV2-200 Charging Parameters

    Correct charging is critical to achieving OPzV2-200’s 20+ year design life. The following parameters are recommended:

    • Float charge voltage: 2.23V per cell @ 25°C
    • Temperature compensation: -3mV/°C per cell
    • Boost/equalize voltage: 2.35V per cell @ 25°C
    • Cyclic charge voltage: 2.40–2.45V per cell @ 25°C
    • Maximum charge current: 0.20C10A = 40A for this model

    Using an incorrect charging voltage — particularly exceeding 2.45V per cell — will significantly reduce OPzV2-200’s cycle life and may cause permanent damage to the nano-gel electrolyte structure.

    Total Cost of Ownership: OPzV2-200 vs AGM

    For a 48V 100kWh solar storage system using OPzV2-200 cells:

    • AGM system life: 3–5 years before replacement (400–800 cycles at 50% DoD)
    • OPzV2-200 OPzV system life: 20+ years (1,200+ cycles at 50% DoD)
    • Replacement cost avoided: 3–4 AGM replacements over 20 years — equal to the OPzV2-200 original investment
    • Maintenance: OPzV2-200 is maintenance-free; AGM requires periodic inspection and replacement

    Applications for OPzV2-200 OPzV Tubular Gel

    The OPzV2-200 is certified and specified for the following applications:

    • Solar and wind renewable energy storage systems
    • Telecom cell tower and transmission site backup power
    • UPS and data center battery backup
    • Nuclear power plant control systems
    • Utility grid frequency regulation and peak shaving
    • Industrial power backup and emergency lighting

    Frequently Asked Questions about OPzV2-200

    Q: What is the capacity of OPzV2-200?
    A: The OPzV2-200 has a rated capacity of 200Ah at the C10 discharge rate.

    Q: What is the float life of OPzV2-200?
    A: The OPzV2-200 is designed for 20+ years float life at 25°C, significantly outperforming standard AGM batteries.

    Q: What applications is OPzV2-200 suitable for?
    A: The OPzV2-200 is ideal for solar energy storage systems, telecom backup power, UPS, data centers, and nuclear power plants.

    Q: How many OPzV2-200 cells for a 48V solar system?
    A: A 48V system requires 24 cells in series (24 × 2V = 48V). For a 100kWh system using OPzV2-200 cells, approximately 250 cells in a 250P24S configuration.

    Q: What is the charging voltage for OPzV2-200?
    A: Float charge: 2.23V/cell @ 25°C. Boost/equalize: 2.35V/cell @ 25°C. Cyclic: 2.40–2.45V/cell @ 25°C.

    Q: OPzV2-200 vs AGM — which has longer cycle life?
    A: The OPzV2-200 tubular gel delivers 1,200+ cycles at 50% DoD, versus 400–800 cycles for standard AGM batteries.

    Related OPzV Battery Models

    For OPzV2-200 OPzV battery specifications, volume pricing for solar/telecom projects, and OEM partnership programs: sales@chisen.cn | www.chisen.cn

    About CHISEN Battery: CHISEN is a professional lead-acid battery manufacturer in China with 20+ years of production experience. ISO 9001/CE/UL certified factory. OPzV tubular gel batteries exported to 50+ countries worldwide. For technical specifications and volume pricing: www.chisen.cn | sales@chisen.cn

  • OPzV Battery Sizing Guide

    The OPzV2-200 OPzV tubular gel battery — a 2V 200Ah cell — is one of the most reliable deep cycle battery options for solar energy storage systems and telecom backup power worldwide. With 20+ year float life and 1,200+ cycles at 50% depth of discharge, the OPzV2-200 delivers a lower total cost of ownership than AGM batteries over any project lifecycle exceeding 5 years. This complete sizing guide covers how to configure OPzV2-200 cells into a solar or telecom battery bank, how many cells you need, and how to optimize charging parameters for maximum lifespan.

    OPzV2-200 OPzV Battery: Complete Specifications

    Specification Value
    Model OPzV2-200
    Voltage 2V
    Capacity (C10) 200Ah
    Dimensions (L×W×H) 103×206×354mm
    Weight 17.30kg
    Float Life 20+ years @ 25°C
    Operating Temp -40°C to +60°C
    Terminal φ20-M8
    Certification ISO 9001, CE, IEC 60896, DIN 40739

    Why OPzV2-200 OPzV Tubular Gel Outperforms AGM

    There are three fundamental engineering differences between OPzV tubular gel and standard AGM batteries that determine real-world performance:

    1. Tubular positive plates — The die-cast Pb-Ca alloy spines enclosed in fiberglass gauntlet tubes prevent positive active material shedding, the primary failure mode in flat-plate VRLA batteries. This allows OPzV2-200 to sustain deep cycling for decades.
    2. Nano-gel electrolyte — High-purity silica gel immobilizes the acid, preventing stratification and eliminating dry-out. Unlike AGM’s glass mat, gel maintains saturation throughout the battery’s life.
    3. Pb-Ca alloy grid corrosion rate — The OPzV2-200’s grid corrodes at approximately 1/10th the rate of antimony-containing alloys used in flooded batteries, enabling 20+ year design life.

    OPzV2-200 Charging Parameters

    Correct charging is critical to achieving OPzV2-200’s 20+ year design life. The following parameters are recommended:

    • Float charge voltage: 2.23V per cell @ 25°C
    • Temperature compensation: -3mV/°C per cell
    • Boost/equalize voltage: 2.35V per cell @ 25°C
    • Cyclic charge voltage: 2.40–2.45V per cell @ 25°C
    • Maximum charge current: 0.20C10A = 40A for this model

    Using an incorrect charging voltage — particularly exceeding 2.45V per cell — will significantly reduce OPzV2-200’s cycle life and may cause permanent damage to the nano-gel electrolyte structure.

    Total Cost of Ownership: OPzV2-200 vs AGM

    For a 48V 100kWh solar storage system using OPzV2-200 cells:

    • AGM system life: 3–5 years before replacement (400–800 cycles at 50% DoD)
    • OPzV2-200 OPzV system life: 20+ years (1,200+ cycles at 50% DoD)
    • Replacement cost avoided: 3–4 AGM replacements over 20 years — equal to the OPzV2-200 original investment
    • Maintenance: OPzV2-200 is maintenance-free; AGM requires periodic inspection and replacement

    Applications for OPzV2-200 OPzV Tubular Gel

    The OPzV2-200 is certified and specified for the following applications:

    • Solar and wind renewable energy storage systems
    • Telecom cell tower and transmission site backup power
    • UPS and data center battery backup
    • Nuclear power plant control systems
    • Utility grid frequency regulation and peak shaving
    • Industrial power backup and emergency lighting

    Frequently Asked Questions about OPzV2-200

    Q: What is the capacity of OPzV2-200?
    A: The OPzV2-200 has a rated capacity of 200Ah at the C10 discharge rate.

    Q: What is the float life of OPzV2-200?
    A: The OPzV2-200 is designed for 20+ years float life at 25°C, significantly outperforming standard AGM batteries.

    Q: What applications is OPzV2-200 suitable for?
    A: The OPzV2-200 is ideal for solar energy storage systems, telecom backup power, UPS, data centers, and nuclear power plants.

    Q: How many OPzV2-200 cells for a 48V solar system?
    A: A 48V system requires 24 cells in series (24 × 2V = 48V). For a 100kWh system using OPzV2-200 cells, approximately 250 cells in a 250P24S configuration.

    Q: What is the charging voltage for OPzV2-200?
    A: Float charge: 2.23V/cell @ 25°C. Boost/equalize: 2.35V/cell @ 25°C. Cyclic: 2.40–2.45V/cell @ 25°C.

    Q: OPzV2-200 vs AGM — which has longer cycle life?
    A: The OPzV2-200 tubular gel delivers 1,200+ cycles at 50% DoD, versus 400–800 cycles for standard AGM batteries.

    Related OPzV Battery Models

    For OPzV2-200 OPzV battery specifications, volume pricing for solar/telecom projects, and OEM partnership programs: sales@chisen.cn | www.chisen.cn

    About CHISEN Battery: CHISEN is a professional lead-acid battery manufacturer in China with 20+ years of production experience. ISO 9001/CE/UL certified factory. OPzV tubular gel batteries exported to 50+ countries worldwide. For technical specifications and volume pricing: www.chisen.cn | sales@chisen.cn

  • OPzV Battery Technology & 20-Year Float Life Explained

    The OPzV2-150 OPzV tubular gel battery achieves 20+ year float life through a combination of three engineered advantages: die-cast Pb-Ca alloy tubular positive plates that prevent active material shedding, high-purity nano-gel electrolyte that eliminates dry-out over decades, and a Pb-Ca alloy grid that corrodes at approximately 1/10th the rate of antimony-containing alloys. This technology deep-dive explains exactly why tubular plate design and gel electrolyte outperform flat-plate AGM in every critical reliability metric — and why the OPzV2-150 has become the preferred battery for nuclear power, data centers, and other critical infrastructure worldwide.

    OPzV2-150 OPzV Battery: Complete Specifications

    Specification Value
    Model OPzV2-150
    Voltage 2V
    Capacity (C10) 150Ah
    Dimensions (L×W×H) 103×206×354mm
    Weight 15.40kg
    Float Life 20+ years @ 25°C
    Operating Temp -40°C to +60°C
    Terminal φ20-M8
    Certification ISO 9001, CE, IEC 60896, DIN 40739

    Why OPzV2-150 OPzV Tubular Gel Outperforms AGM

    There are three fundamental engineering differences between OPzV tubular gel and standard AGM batteries that determine real-world performance:

    1. Tubular positive plates — The die-cast Pb-Ca alloy spines enclosed in fiberglass gauntlet tubes prevent positive active material shedding, the primary failure mode in flat-plate VRLA batteries. This allows OPzV2-150 to sustain deep cycling for decades.
    2. Nano-gel electrolyte — High-purity silica gel immobilizes the acid, preventing stratification and eliminating dry-out. Unlike AGM’s glass mat, gel maintains saturation throughout the battery’s life.
    3. Pb-Ca alloy grid corrosion rate — The OPzV2-150’s grid corrodes at approximately 1/10th the rate of antimony-containing alloys used in flooded batteries, enabling 20+ year design life.

    OPzV2-150 Charging Parameters

    Correct charging is critical to achieving OPzV2-150’s 20+ year design life. The following parameters are recommended:

    • Float charge voltage: 2.23V per cell @ 25°C
    • Temperature compensation: -3mV/°C per cell
    • Boost/equalize voltage: 2.35V per cell @ 25°C
    • Cyclic charge voltage: 2.40–2.45V per cell @ 25°C
    • Maximum charge current: 0.20C10A = 30A for this model

    Using an incorrect charging voltage — particularly exceeding 2.45V per cell — will significantly reduce OPzV2-150’s cycle life and may cause permanent damage to the nano-gel electrolyte structure.

    Total Cost of Ownership: OPzV2-150 vs AGM

    For a 48V 100kWh solar storage system using OPzV2-150 cells:

    • AGM system life: 3–5 years before replacement (400–800 cycles at 50% DoD)
    • OPzV2-150 OPzV system life: 20+ years (1,200+ cycles at 50% DoD)
    • Replacement cost avoided: 3–4 AGM replacements over 20 years — equal to the OPzV2-150 original investment
    • Maintenance: OPzV2-150 is maintenance-free; AGM requires periodic inspection and replacement

    Applications for OPzV2-150 OPzV Tubular Gel

    The OPzV2-150 is certified and specified for the following applications:

    • Solar and wind renewable energy storage systems
    • Telecom cell tower and transmission site backup power
    • UPS and data center battery backup
    • Nuclear power plant control systems
    • Utility grid frequency regulation and peak shaving
    • Industrial power backup and emergency lighting

    Frequently Asked Questions about OPzV2-150

    Q: What is the capacity of OPzV2-150?
    A: The OPzV2-150 has a rated capacity of 150Ah at the C10 discharge rate.

    Q: What is the float life of OPzV2-150?
    A: The OPzV2-150 is designed for 20+ years float life at 25°C, significantly outperforming standard AGM batteries.

    Q: What applications is OPzV2-150 suitable for?
    A: The OPzV2-150 is ideal for solar energy storage systems, telecom backup power, UPS, data centers, and nuclear power plants.

    Q: How many OPzV2-150 cells for a 48V solar system?
    A: A 48V system requires 24 cells in series (24 × 2V = 48V). For a 100kWh system using OPzV2-150 cells, approximately 333 cells in a 333P24S configuration.

    Q: What is the charging voltage for OPzV2-150?
    A: Float charge: 2.23V/cell @ 25°C. Boost/equalize: 2.35V/cell @ 25°C. Cyclic: 2.40–2.45V/cell @ 25°C.

    Q: OPzV2-150 vs AGM — which has longer cycle life?
    A: The OPzV2-150 tubular gel delivers 1,200+ cycles at 50% DoD, versus 400–800 cycles for standard AGM batteries.

    Related OPzV Battery Models

    For OPzV2-150 OPzV battery specifications, volume pricing for solar/telecom projects, and OEM partnership programs: sales@chisen.cn | www.chisen.cn

    About CHISEN Battery: CHISEN is a professional lead-acid battery manufacturer in China with 20+ years of production experience. ISO 9001/CE/UL certified factory. OPzV tubular gel batteries exported to 50+ countries worldwide. For technical specifications and volume pricing: www.chisen.cn | sales@chisen.cn

  • OPzV Battery Procurement Guide

    Procuring OPzV2-150 OPzV tubular gel batteries for large-scale industrial energy storage projects requires verifying technical specifications, manufacturing credentials, and supply chain capability before placing orders. This procurement guide covers everything buyers need to know: how to verify OPzV2-150 specifications against datasheets, what test reports to request, how to evaluate Chinese manufacturers, and what warranty terms to negotiate. Using this checklist prevents the common procurement mistakes that lead to premature battery failures in industrial energy storage installations.

    OPzV2-150 OPzV Battery: Complete Specifications

    Specification Value
    Model OPzV2-150
    Voltage 2V
    Capacity (C10) 150Ah
    Dimensions (L×W×H) 103×206×354mm
    Weight 15.40kg
    Float Life 20+ years @ 25°C
    Operating Temp -40°C to +60°C
    Terminal φ20-M8
    Certification ISO 9001, CE, IEC 60896, DIN 40739

    Why OPzV2-150 OPzV Tubular Gel Outperforms AGM

    There are three fundamental engineering differences between OPzV tubular gel and standard AGM batteries that determine real-world performance:

    1. Tubular positive plates — The die-cast Pb-Ca alloy spines enclosed in fiberglass gauntlet tubes prevent positive active material shedding, the primary failure mode in flat-plate VRLA batteries. This allows OPzV2-150 to sustain deep cycling for decades.
    2. Nano-gel electrolyte — High-purity silica gel immobilizes the acid, preventing stratification and eliminating dry-out. Unlike AGM’s glass mat, gel maintains saturation throughout the battery’s life.
    3. Pb-Ca alloy grid corrosion rate — The OPzV2-150’s grid corrodes at approximately 1/10th the rate of antimony-containing alloys used in flooded batteries, enabling 20+ year design life.

    OPzV2-150 Charging Parameters

    Correct charging is critical to achieving OPzV2-150’s 20+ year design life. The following parameters are recommended:

    • Float charge voltage: 2.23V per cell @ 25°C
    • Temperature compensation: -3mV/°C per cell
    • Boost/equalize voltage: 2.35V per cell @ 25°C
    • Cyclic charge voltage: 2.40–2.45V per cell @ 25°C
    • Maximum charge current: 0.20C10A = 30A for this model

    Using an incorrect charging voltage — particularly exceeding 2.45V per cell — will significantly reduce OPzV2-150’s cycle life and may cause permanent damage to the nano-gel electrolyte structure.

    Total Cost of Ownership: OPzV2-150 vs AGM

    For a 48V 100kWh solar storage system using OPzV2-150 cells:

    • AGM system life: 3–5 years before replacement (400–800 cycles at 50% DoD)
    • OPzV2-150 OPzV system life: 20+ years (1,200+ cycles at 50% DoD)
    • Replacement cost avoided: 3–4 AGM replacements over 20 years — equal to the OPzV2-150 original investment
    • Maintenance: OPzV2-150 is maintenance-free; AGM requires periodic inspection and replacement

    Applications for OPzV2-150 OPzV Tubular Gel

    The OPzV2-150 is certified and specified for the following applications:

    • Solar and wind renewable energy storage systems
    • Telecom cell tower and transmission site backup power
    • UPS and data center battery backup
    • Nuclear power plant control systems
    • Utility grid frequency regulation and peak shaving
    • Industrial power backup and emergency lighting

    Frequently Asked Questions about OPzV2-150

    Q: What is the capacity of OPzV2-150?
    A: The OPzV2-150 has a rated capacity of 150Ah at the C10 discharge rate.

    Q: What is the float life of OPzV2-150?
    A: The OPzV2-150 is designed for 20+ years float life at 25°C, significantly outperforming standard AGM batteries.

    Q: What applications is OPzV2-150 suitable for?
    A: The OPzV2-150 is ideal for solar energy storage systems, telecom backup power, UPS, data centers, and nuclear power plants.

    Q: How many OPzV2-150 cells for a 48V solar system?
    A: A 48V system requires 24 cells in series (24 × 2V = 48V). For a 100kWh system using OPzV2-150 cells, approximately 333 cells in a 333P24S configuration.

    Q: What is the charging voltage for OPzV2-150?
    A: Float charge: 2.23V/cell @ 25°C. Boost/equalize: 2.35V/cell @ 25°C. Cyclic: 2.40–2.45V/cell @ 25°C.

    Q: OPzV2-150 vs AGM — which has longer cycle life?
    A: The OPzV2-150 tubular gel delivers 1,200+ cycles at 50% DoD, versus 400–800 cycles for standard AGM batteries.

    Related OPzV Battery Models

    For OPzV2-150 OPzV battery specifications, volume pricing for solar/telecom projects, and OEM partnership programs: sales@chisen.cn | www.chisen.cn

    About CHISEN Battery: CHISEN is a professional lead-acid battery manufacturer in China with 20+ years of production experience. ISO 9001/CE/UL certified factory. OPzV tubular gel batteries exported to 50+ countries worldwide. For technical specifications and volume pricing: www.chisen.cn | sales@chisen.cn

  • OPzV Battery for Telecom Backup Power

    The OPzV2-150 OPzV tubular gel battery has become the global standard for telecom backup power — chosen by tower companies and network operators who need reliable 20+ year battery performance at remote cell sites. With its maintenance-free sealed design, wide -40°C to +60°C operating range, and superior deep discharge recovery, the OPzV2-150 is specified for telecom backup applications in every climate zone from Sub-Saharan Africa to Northern Europe. This technical guide covers OPzV2-150 specifications, sizing, and charging parameters for telecom engineers and procurement teams.

    OPzV2-150 OPzV Battery: Complete Specifications

    Specification Value
    Model OPzV2-150
    Voltage 2V
    Capacity (C10) 150Ah
    Dimensions (L×W×H) 103×206×354mm
    Weight 15.40kg
    Float Life 20+ years @ 25°C
    Operating Temp -40°C to +60°C
    Terminal φ20-M8
    Certification ISO 9001, CE, IEC 60896, DIN 40739

    Why OPzV2-150 OPzV Tubular Gel Outperforms AGM

    There are three fundamental engineering differences between OPzV tubular gel and standard AGM batteries that determine real-world performance:

    1. Tubular positive plates — The die-cast Pb-Ca alloy spines enclosed in fiberglass gauntlet tubes prevent positive active material shedding, the primary failure mode in flat-plate VRLA batteries. This allows OPzV2-150 to sustain deep cycling for decades.
    2. Nano-gel electrolyte — High-purity silica gel immobilizes the acid, preventing stratification and eliminating dry-out. Unlike AGM’s glass mat, gel maintains saturation throughout the battery’s life.
    3. Pb-Ca alloy grid corrosion rate — The OPzV2-150’s grid corrodes at approximately 1/10th the rate of antimony-containing alloys used in flooded batteries, enabling 20+ year design life.

    OPzV2-150 Charging Parameters

    Correct charging is critical to achieving OPzV2-150’s 20+ year design life. The following parameters are recommended:

    • Float charge voltage: 2.23V per cell @ 25°C
    • Temperature compensation: -3mV/°C per cell
    • Boost/equalize voltage: 2.35V per cell @ 25°C
    • Cyclic charge voltage: 2.40–2.45V per cell @ 25°C
    • Maximum charge current: 0.20C10A = 30A for this model

    Using an incorrect charging voltage — particularly exceeding 2.45V per cell — will significantly reduce OPzV2-150’s cycle life and may cause permanent damage to the nano-gel electrolyte structure.

    Total Cost of Ownership: OPzV2-150 vs AGM

    For a 48V 100kWh solar storage system using OPzV2-150 cells:

    • AGM system life: 3–5 years before replacement (400–800 cycles at 50% DoD)
    • OPzV2-150 OPzV system life: 20+ years (1,200+ cycles at 50% DoD)
    • Replacement cost avoided: 3–4 AGM replacements over 20 years — equal to the OPzV2-150 original investment
    • Maintenance: OPzV2-150 is maintenance-free; AGM requires periodic inspection and replacement

    Applications for OPzV2-150 OPzV Tubular Gel

    The OPzV2-150 is certified and specified for the following applications:

    • Solar and wind renewable energy storage systems
    • Telecom cell tower and transmission site backup power
    • UPS and data center battery backup
    • Nuclear power plant control systems
    • Utility grid frequency regulation and peak shaving
    • Industrial power backup and emergency lighting

    Frequently Asked Questions about OPzV2-150

    Q: What is the capacity of OPzV2-150?
    A: The OPzV2-150 has a rated capacity of 150Ah at the C10 discharge rate.

    Q: What is the float life of OPzV2-150?
    A: The OPzV2-150 is designed for 20+ years float life at 25°C, significantly outperforming standard AGM batteries.

    Q: What applications is OPzV2-150 suitable for?
    A: The OPzV2-150 is ideal for solar energy storage systems, telecom backup power, UPS, data centers, and nuclear power plants.

    Q: How many OPzV2-150 cells for a 48V solar system?
    A: A 48V system requires 24 cells in series (24 × 2V = 48V). For a 100kWh system using OPzV2-150 cells, approximately 333 cells in a 333P24S configuration.

    Q: What is the charging voltage for OPzV2-150?
    A: Float charge: 2.23V/cell @ 25°C. Boost/equalize: 2.35V/cell @ 25°C. Cyclic: 2.40–2.45V/cell @ 25°C.

    Q: OPzV2-150 vs AGM — which has longer cycle life?
    A: The OPzV2-150 tubular gel delivers 1,200+ cycles at 50% DoD, versus 400–800 cycles for standard AGM batteries.

    Related OPzV Battery Models

    For OPzV2-150 OPzV battery specifications, volume pricing for solar/telecom projects, and OEM partnership programs: sales@chisen.cn | www.chisen.cn

    About CHISEN Battery: CHISEN is a professional lead-acid battery manufacturer in China with 20+ years of production experience. ISO 9001/CE/UL certified factory. OPzV tubular gel batteries exported to 50+ countries worldwide. For technical specifications and volume pricing: www.chisen.cn | sales@chisen.cn

  • OPzV vs AGM Battery Comparison

    The OPzV2-150 OPzV tubular gel battery and standard AGM VRLA batteries represent two fundamentally different philosophies in energy storage: AGM offers lower upfront cost, while OPzV tubular gel delivers 3–5x longer cycle life and 20+ year float life. For solar energy storage projects with a 5+ year operational horizon, the OPzV2-150 OPzV consistently outperforms AGM on total cost of ownership — even though the upfront investment is higher. This direct comparison examines the technical and economic differences that matter for project developers and system integrators.

    OPzV2-150 OPzV Battery: Complete Specifications

    Specification Value
    Model OPzV2-150
    Voltage 2V
    Capacity (C10) 150Ah
    Dimensions (L×W×H) 103×206×354mm
    Weight 15.40kg
    Float Life 20+ years @ 25°C
    Operating Temp -40°C to +60°C
    Terminal φ20-M8
    Certification ISO 9001, CE, IEC 60896, DIN 40739

    Why OPzV2-150 OPzV Tubular Gel Outperforms AGM

    There are three fundamental engineering differences between OPzV tubular gel and standard AGM batteries that determine real-world performance:

    1. Tubular positive plates — The die-cast Pb-Ca alloy spines enclosed in fiberglass gauntlet tubes prevent positive active material shedding, the primary failure mode in flat-plate VRLA batteries. This allows OPzV2-150 to sustain deep cycling for decades.
    2. Nano-gel electrolyte — High-purity silica gel immobilizes the acid, preventing stratification and eliminating dry-out. Unlike AGM’s glass mat, gel maintains saturation throughout the battery’s life.
    3. Pb-Ca alloy grid corrosion rate — The OPzV2-150’s grid corrodes at approximately 1/10th the rate of antimony-containing alloys used in flooded batteries, enabling 20+ year design life.

    OPzV2-150 Charging Parameters

    Correct charging is critical to achieving OPzV2-150’s 20+ year design life. The following parameters are recommended:

    • Float charge voltage: 2.23V per cell @ 25°C
    • Temperature compensation: -3mV/°C per cell
    • Boost/equalize voltage: 2.35V per cell @ 25°C
    • Cyclic charge voltage: 2.40–2.45V per cell @ 25°C
    • Maximum charge current: 0.20C10A = 30A for this model

    Using an incorrect charging voltage — particularly exceeding 2.45V per cell — will significantly reduce OPzV2-150’s cycle life and may cause permanent damage to the nano-gel electrolyte structure.

    Total Cost of Ownership: OPzV2-150 vs AGM

    For a 48V 100kWh solar storage system using OPzV2-150 cells:

    • AGM system life: 3–5 years before replacement (400–800 cycles at 50% DoD)
    • OPzV2-150 OPzV system life: 20+ years (1,200+ cycles at 50% DoD)
    • Replacement cost avoided: 3–4 AGM replacements over 20 years — equal to the OPzV2-150 original investment
    • Maintenance: OPzV2-150 is maintenance-free; AGM requires periodic inspection and replacement

    Applications for OPzV2-150 OPzV Tubular Gel

    The OPzV2-150 is certified and specified for the following applications:

    • Solar and wind renewable energy storage systems
    • Telecom cell tower and transmission site backup power
    • UPS and data center battery backup
    • Nuclear power plant control systems
    • Utility grid frequency regulation and peak shaving
    • Industrial power backup and emergency lighting

    Frequently Asked Questions about OPzV2-150

    Q: What is the capacity of OPzV2-150?
    A: The OPzV2-150 has a rated capacity of 150Ah at the C10 discharge rate.

    Q: What is the float life of OPzV2-150?
    A: The OPzV2-150 is designed for 20+ years float life at 25°C, significantly outperforming standard AGM batteries.

    Q: What applications is OPzV2-150 suitable for?
    A: The OPzV2-150 is ideal for solar energy storage systems, telecom backup power, UPS, data centers, and nuclear power plants.

    Q: How many OPzV2-150 cells for a 48V solar system?
    A: A 48V system requires 24 cells in series (24 × 2V = 48V). For a 100kWh system using OPzV2-150 cells, approximately 333 cells in a 333P24S configuration.

    Q: What is the charging voltage for OPzV2-150?
    A: Float charge: 2.23V/cell @ 25°C. Boost/equalize: 2.35V/cell @ 25°C. Cyclic: 2.40–2.45V/cell @ 25°C.

    Q: OPzV2-150 vs AGM — which has longer cycle life?
    A: The OPzV2-150 tubular gel delivers 1,200+ cycles at 50% DoD, versus 400–800 cycles for standard AGM batteries.

    Related OPzV Battery Models

    For OPzV2-150 OPzV battery specifications, volume pricing for solar/telecom projects, and OEM partnership programs: sales@chisen.cn | www.chisen.cn

    About CHISEN Battery: CHISEN is a professional lead-acid battery manufacturer in China with 20+ years of production experience. ISO 9001/CE/UL certified factory. OPzV tubular gel batteries exported to 50+ countries worldwide. For technical specifications and volume pricing: www.chisen.cn | sales@chisen.cn

  • OPzV Battery Sizing Guide

    The OPzV2-150 OPzV tubular gel battery — a 2V 150Ah cell — is one of the most reliable deep cycle battery options for solar energy storage systems and telecom backup power worldwide. With 20+ year float life and 1,200+ cycles at 50% depth of discharge, the OPzV2-150 delivers a lower total cost of ownership than AGM batteries over any project lifecycle exceeding 5 years. This complete sizing guide covers how to configure OPzV2-150 cells into a solar or telecom battery bank, how many cells you need, and how to optimize charging parameters for maximum lifespan.

    OPzV2-150 OPzV Battery: Complete Specifications

    Specification Value
    Model OPzV2-150
    Voltage 2V
    Capacity (C10) 150Ah
    Dimensions (L×W×H) 103×206×354mm
    Weight 15.40kg
    Float Life 20+ years @ 25°C
    Operating Temp -40°C to +60°C
    Terminal φ20-M8
    Certification ISO 9001, CE, IEC 60896, DIN 40739

    Why OPzV2-150 OPzV Tubular Gel Outperforms AGM

    There are three fundamental engineering differences between OPzV tubular gel and standard AGM batteries that determine real-world performance:

    1. Tubular positive plates — The die-cast Pb-Ca alloy spines enclosed in fiberglass gauntlet tubes prevent positive active material shedding, the primary failure mode in flat-plate VRLA batteries. This allows OPzV2-150 to sustain deep cycling for decades.
    2. Nano-gel electrolyte — High-purity silica gel immobilizes the acid, preventing stratification and eliminating dry-out. Unlike AGM’s glass mat, gel maintains saturation throughout the battery’s life.
    3. Pb-Ca alloy grid corrosion rate — The OPzV2-150’s grid corrodes at approximately 1/10th the rate of antimony-containing alloys used in flooded batteries, enabling 20+ year design life.

    OPzV2-150 Charging Parameters

    Correct charging is critical to achieving OPzV2-150’s 20+ year design life. The following parameters are recommended:

    • Float charge voltage: 2.23V per cell @ 25°C
    • Temperature compensation: -3mV/°C per cell
    • Boost/equalize voltage: 2.35V per cell @ 25°C
    • Cyclic charge voltage: 2.40–2.45V per cell @ 25°C
    • Maximum charge current: 0.20C10A = 30A for this model

    Using an incorrect charging voltage — particularly exceeding 2.45V per cell — will significantly reduce OPzV2-150’s cycle life and may cause permanent damage to the nano-gel electrolyte structure.

    Total Cost of Ownership: OPzV2-150 vs AGM

    For a 48V 100kWh solar storage system using OPzV2-150 cells:

    • AGM system life: 3–5 years before replacement (400–800 cycles at 50% DoD)
    • OPzV2-150 OPzV system life: 20+ years (1,200+ cycles at 50% DoD)
    • Replacement cost avoided: 3–4 AGM replacements over 20 years — equal to the OPzV2-150 original investment
    • Maintenance: OPzV2-150 is maintenance-free; AGM requires periodic inspection and replacement

    Applications for OPzV2-150 OPzV Tubular Gel

    The OPzV2-150 is certified and specified for the following applications:

    • Solar and wind renewable energy storage systems
    • Telecom cell tower and transmission site backup power
    • UPS and data center battery backup
    • Nuclear power plant control systems
    • Utility grid frequency regulation and peak shaving
    • Industrial power backup and emergency lighting

    Frequently Asked Questions about OPzV2-150

    Q: What is the capacity of OPzV2-150?
    A: The OPzV2-150 has a rated capacity of 150Ah at the C10 discharge rate.

    Q: What is the float life of OPzV2-150?
    A: The OPzV2-150 is designed for 20+ years float life at 25°C, significantly outperforming standard AGM batteries.

    Q: What applications is OPzV2-150 suitable for?
    A: The OPzV2-150 is ideal for solar energy storage systems, telecom backup power, UPS, data centers, and nuclear power plants.

    Q: How many OPzV2-150 cells for a 48V solar system?
    A: A 48V system requires 24 cells in series (24 × 2V = 48V). For a 100kWh system using OPzV2-150 cells, approximately 333 cells in a 333P24S configuration.

    Q: What is the charging voltage for OPzV2-150?
    A: Float charge: 2.23V/cell @ 25°C. Boost/equalize: 2.35V/cell @ 25°C. Cyclic: 2.40–2.45V/cell @ 25°C.

    Q: OPzV2-150 vs AGM — which has longer cycle life?
    A: The OPzV2-150 tubular gel delivers 1,200+ cycles at 50% DoD, versus 400–800 cycles for standard AGM batteries.

    Related OPzV Battery Models

    For OPzV2-150 OPzV battery specifications, volume pricing for solar/telecom projects, and OEM partnership programs: sales@chisen.cn | www.chisen.cn

    About CHISEN Battery: CHISEN is a professional lead-acid battery manufacturer in China with 20+ years of production experience. ISO 9001/CE/UL certified factory. OPzV tubular gel batteries exported to 50+ countries worldwide. For technical specifications and volume pricing: www.chisen.cn | sales@chisen.cn

  • OPzV Battery Technology & 20-Year Float Life Explained

    The OPzV2-100 OPzV tubular gel battery achieves 20+ year float life through a combination of three engineered advantages: die-cast Pb-Ca alloy tubular positive plates that prevent active material shedding, high-purity nano-gel electrolyte that eliminates dry-out over decades, and a Pb-Ca alloy grid that corrodes at approximately 1/10th the rate of antimony-containing alloys. This technology deep-dive explains exactly why tubular plate design and gel electrolyte outperform flat-plate AGM in every critical reliability metric — and why the OPzV2-100 has become the preferred battery for nuclear power, data centers, and other critical infrastructure worldwide.

    OPzV2-100 OPzV Battery: Complete Specifications

    Specification Value
    Model OPzV2-100
    Voltage 2V
    Capacity (C10) 100Ah
    Dimensions (L×W×H) 103×206×354mm
    Weight 13.40kg
    Float Life 20+ years @ 25°C
    Operating Temp -40°C to +60°C
    Terminal φ20-M8
    Certification ISO 9001, CE, IEC 60896, DIN 40739

    Why OPzV2-100 OPzV Tubular Gel Outperforms AGM

    There are three fundamental engineering differences between OPzV tubular gel and standard AGM batteries that determine real-world performance:

    1. Tubular positive plates — The die-cast Pb-Ca alloy spines enclosed in fiberglass gauntlet tubes prevent positive active material shedding, the primary failure mode in flat-plate VRLA batteries. This allows OPzV2-100 to sustain deep cycling for decades.
    2. Nano-gel electrolyte — High-purity silica gel immobilizes the acid, preventing stratification and eliminating dry-out. Unlike AGM’s glass mat, gel maintains saturation throughout the battery’s life.
    3. Pb-Ca alloy grid corrosion rate — The OPzV2-100’s grid corrodes at approximately 1/10th the rate of antimony-containing alloys used in flooded batteries, enabling 20+ year design life.

    OPzV2-100 Charging Parameters

    Correct charging is critical to achieving OPzV2-100’s 20+ year design life. The following parameters are recommended:

    • Float charge voltage: 2.23V per cell @ 25°C
    • Temperature compensation: -3mV/°C per cell
    • Boost/equalize voltage: 2.35V per cell @ 25°C
    • Cyclic charge voltage: 2.40–2.45V per cell @ 25°C
    • Maximum charge current: 0.20C10A = 20A for this model

    Using an incorrect charging voltage — particularly exceeding 2.45V per cell — will significantly reduce OPzV2-100’s cycle life and may cause permanent damage to the nano-gel electrolyte structure.

    Total Cost of Ownership: OPzV2-100 vs AGM

    For a 48V 100kWh solar storage system using OPzV2-100 cells:

    • AGM system life: 3–5 years before replacement (400–800 cycles at 50% DoD)
    • OPzV2-100 OPzV system life: 20+ years (1,200+ cycles at 50% DoD)
    • Replacement cost avoided: 3–4 AGM replacements over 20 years — equal to the OPzV2-100 original investment
    • Maintenance: OPzV2-100 is maintenance-free; AGM requires periodic inspection and replacement

    Applications for OPzV2-100 OPzV Tubular Gel

    The OPzV2-100 is certified and specified for the following applications:

    • Solar and wind renewable energy storage systems
    • Telecom cell tower and transmission site backup power
    • UPS and data center battery backup
    • Nuclear power plant control systems
    • Utility grid frequency regulation and peak shaving
    • Industrial power backup and emergency lighting

    Frequently Asked Questions about OPzV2-100

    Q: What is the capacity of OPzV2-100?
    A: The OPzV2-100 has a rated capacity of 100Ah at the C10 discharge rate.

    Q: What is the float life of OPzV2-100?
    A: The OPzV2-100 is designed for 20+ years float life at 25°C, significantly outperforming standard AGM batteries.

    Q: What applications is OPzV2-100 suitable for?
    A: The OPzV2-100 is ideal for solar energy storage systems, telecom backup power, UPS, data centers, and nuclear power plants.

    Q: How many OPzV2-100 cells for a 48V solar system?
    A: A 48V system requires 24 cells in series (24 × 2V = 48V). For a 100kWh system using OPzV2-100 cells, approximately 500 cells in a 500P24S configuration.

    Q: What is the charging voltage for OPzV2-100?
    A: Float charge: 2.23V/cell @ 25°C. Boost/equalize: 2.35V/cell @ 25°C. Cyclic: 2.40–2.45V/cell @ 25°C.

    Q: OPzV2-100 vs AGM — which has longer cycle life?
    A: The OPzV2-100 tubular gel delivers 1,200+ cycles at 50% DoD, versus 400–800 cycles for standard AGM batteries.

    Related OPzV Battery Models

    For OPzV2-100 OPzV battery specifications, volume pricing for solar/telecom projects, and OEM partnership programs: sales@chisen.cn | www.chisen.cn

    About CHISEN Battery: CHISEN is a professional lead-acid battery manufacturer in China with 20+ years of production experience. ISO 9001/CE/UL certified factory. OPzV tubular gel batteries exported to 50+ countries worldwide. For technical specifications and volume pricing: www.chisen.cn | sales@chisen.cn

  • OPzV Battery Procurement Guide

    Procuring OPzV2-100 OPzV tubular gel batteries for large-scale industrial energy storage projects requires verifying technical specifications, manufacturing credentials, and supply chain capability before placing orders. This procurement guide covers everything buyers need to know: how to verify OPzV2-100 specifications against datasheets, what test reports to request, how to evaluate Chinese manufacturers, and what warranty terms to negotiate. Using this checklist prevents the common procurement mistakes that lead to premature battery failures in industrial energy storage installations.

    OPzV2-100 OPzV Battery: Complete Specifications

    Specification Value
    Model OPzV2-100
    Voltage 2V
    Capacity (C10) 100Ah
    Dimensions (L×W×H) 103×206×354mm
    Weight 13.40kg
    Float Life 20+ years @ 25°C
    Operating Temp -40°C to +60°C
    Terminal φ20-M8
    Certification ISO 9001, CE, IEC 60896, DIN 40739

    Why OPzV2-100 OPzV Tubular Gel Outperforms AGM

    There are three fundamental engineering differences between OPzV tubular gel and standard AGM batteries that determine real-world performance:

    1. Tubular positive plates — The die-cast Pb-Ca alloy spines enclosed in fiberglass gauntlet tubes prevent positive active material shedding, the primary failure mode in flat-plate VRLA batteries. This allows OPzV2-100 to sustain deep cycling for decades.
    2. Nano-gel electrolyte — High-purity silica gel immobilizes the acid, preventing stratification and eliminating dry-out. Unlike AGM’s glass mat, gel maintains saturation throughout the battery’s life.
    3. Pb-Ca alloy grid corrosion rate — The OPzV2-100’s grid corrodes at approximately 1/10th the rate of antimony-containing alloys used in flooded batteries, enabling 20+ year design life.

    OPzV2-100 Charging Parameters

    Correct charging is critical to achieving OPzV2-100’s 20+ year design life. The following parameters are recommended:

    • Float charge voltage: 2.23V per cell @ 25°C
    • Temperature compensation: -3mV/°C per cell
    • Boost/equalize voltage: 2.35V per cell @ 25°C
    • Cyclic charge voltage: 2.40–2.45V per cell @ 25°C
    • Maximum charge current: 0.20C10A = 20A for this model

    Using an incorrect charging voltage — particularly exceeding 2.45V per cell — will significantly reduce OPzV2-100’s cycle life and may cause permanent damage to the nano-gel electrolyte structure.

    Total Cost of Ownership: OPzV2-100 vs AGM

    For a 48V 100kWh solar storage system using OPzV2-100 cells:

    • AGM system life: 3–5 years before replacement (400–800 cycles at 50% DoD)
    • OPzV2-100 OPzV system life: 20+ years (1,200+ cycles at 50% DoD)
    • Replacement cost avoided: 3–4 AGM replacements over 20 years — equal to the OPzV2-100 original investment
    • Maintenance: OPzV2-100 is maintenance-free; AGM requires periodic inspection and replacement

    Applications for OPzV2-100 OPzV Tubular Gel

    The OPzV2-100 is certified and specified for the following applications:

    • Solar and wind renewable energy storage systems
    • Telecom cell tower and transmission site backup power
    • UPS and data center battery backup
    • Nuclear power plant control systems
    • Utility grid frequency regulation and peak shaving
    • Industrial power backup and emergency lighting

    Frequently Asked Questions about OPzV2-100

    Q: What is the capacity of OPzV2-100?
    A: The OPzV2-100 has a rated capacity of 100Ah at the C10 discharge rate.

    Q: What is the float life of OPzV2-100?
    A: The OPzV2-100 is designed for 20+ years float life at 25°C, significantly outperforming standard AGM batteries.

    Q: What applications is OPzV2-100 suitable for?
    A: The OPzV2-100 is ideal for solar energy storage systems, telecom backup power, UPS, data centers, and nuclear power plants.

    Q: How many OPzV2-100 cells for a 48V solar system?
    A: A 48V system requires 24 cells in series (24 × 2V = 48V). For a 100kWh system using OPzV2-100 cells, approximately 500 cells in a 500P24S configuration.

    Q: What is the charging voltage for OPzV2-100?
    A: Float charge: 2.23V/cell @ 25°C. Boost/equalize: 2.35V/cell @ 25°C. Cyclic: 2.40–2.45V/cell @ 25°C.

    Q: OPzV2-100 vs AGM — which has longer cycle life?
    A: The OPzV2-100 tubular gel delivers 1,200+ cycles at 50% DoD, versus 400–800 cycles for standard AGM batteries.

    Related OPzV Battery Models

    For OPzV2-100 OPzV battery specifications, volume pricing for solar/telecom projects, and OEM partnership programs: sales@chisen.cn | www.chisen.cn

    About CHISEN Battery: CHISEN is a professional lead-acid battery manufacturer in China with 20+ years of production experience. ISO 9001/CE/UL certified factory. OPzV tubular gel batteries exported to 50+ countries worldwide. For technical specifications and volume pricing: www.chisen.cn | sales@chisen.cn

  • OPzV Battery for Telecom Backup Power

    The OPzV2-100 OPzV tubular gel battery has become the global standard for telecom backup power — chosen by tower companies and network operators who need reliable 20+ year battery performance at remote cell sites. With its maintenance-free sealed design, wide -40°C to +60°C operating range, and superior deep discharge recovery, the OPzV2-100 is specified for telecom backup applications in every climate zone from Sub-Saharan Africa to Northern Europe. This technical guide covers OPzV2-100 specifications, sizing, and charging parameters for telecom engineers and procurement teams.

    OPzV2-100 OPzV Battery: Complete Specifications

    Specification Value
    Model OPzV2-100
    Voltage 2V
    Capacity (C10) 100Ah
    Dimensions (L×W×H) 103×206×354mm
    Weight 13.40kg
    Float Life 20+ years @ 25°C
    Operating Temp -40°C to +60°C
    Terminal φ20-M8
    Certification ISO 9001, CE, IEC 60896, DIN 40739

    Why OPzV2-100 OPzV Tubular Gel Outperforms AGM

    There are three fundamental engineering differences between OPzV tubular gel and standard AGM batteries that determine real-world performance:

    1. Tubular positive plates — The die-cast Pb-Ca alloy spines enclosed in fiberglass gauntlet tubes prevent positive active material shedding, the primary failure mode in flat-plate VRLA batteries. This allows OPzV2-100 to sustain deep cycling for decades.
    2. Nano-gel electrolyte — High-purity silica gel immobilizes the acid, preventing stratification and eliminating dry-out. Unlike AGM’s glass mat, gel maintains saturation throughout the battery’s life.
    3. Pb-Ca alloy grid corrosion rate — The OPzV2-100’s grid corrodes at approximately 1/10th the rate of antimony-containing alloys used in flooded batteries, enabling 20+ year design life.

    OPzV2-100 Charging Parameters

    Correct charging is critical to achieving OPzV2-100’s 20+ year design life. The following parameters are recommended:

    • Float charge voltage: 2.23V per cell @ 25°C
    • Temperature compensation: -3mV/°C per cell
    • Boost/equalize voltage: 2.35V per cell @ 25°C
    • Cyclic charge voltage: 2.40–2.45V per cell @ 25°C
    • Maximum charge current: 0.20C10A = 20A for this model

    Using an incorrect charging voltage — particularly exceeding 2.45V per cell — will significantly reduce OPzV2-100’s cycle life and may cause permanent damage to the nano-gel electrolyte structure.

    Total Cost of Ownership: OPzV2-100 vs AGM

    For a 48V 100kWh solar storage system using OPzV2-100 cells:

    • AGM system life: 3–5 years before replacement (400–800 cycles at 50% DoD)
    • OPzV2-100 OPzV system life: 20+ years (1,200+ cycles at 50% DoD)
    • Replacement cost avoided: 3–4 AGM replacements over 20 years — equal to the OPzV2-100 original investment
    • Maintenance: OPzV2-100 is maintenance-free; AGM requires periodic inspection and replacement

    Applications for OPzV2-100 OPzV Tubular Gel

    The OPzV2-100 is certified and specified for the following applications:

    • Solar and wind renewable energy storage systems
    • Telecom cell tower and transmission site backup power
    • UPS and data center battery backup
    • Nuclear power plant control systems
    • Utility grid frequency regulation and peak shaving
    • Industrial power backup and emergency lighting

    Frequently Asked Questions about OPzV2-100

    Q: What is the capacity of OPzV2-100?
    A: The OPzV2-100 has a rated capacity of 100Ah at the C10 discharge rate.

    Q: What is the float life of OPzV2-100?
    A: The OPzV2-100 is designed for 20+ years float life at 25°C, significantly outperforming standard AGM batteries.

    Q: What applications is OPzV2-100 suitable for?
    A: The OPzV2-100 is ideal for solar energy storage systems, telecom backup power, UPS, data centers, and nuclear power plants.

    Q: How many OPzV2-100 cells for a 48V solar system?
    A: A 48V system requires 24 cells in series (24 × 2V = 48V). For a 100kWh system using OPzV2-100 cells, approximately 500 cells in a 500P24S configuration.

    Q: What is the charging voltage for OPzV2-100?
    A: Float charge: 2.23V/cell @ 25°C. Boost/equalize: 2.35V/cell @ 25°C. Cyclic: 2.40–2.45V/cell @ 25°C.

    Q: OPzV2-100 vs AGM — which has longer cycle life?
    A: The OPzV2-100 tubular gel delivers 1,200+ cycles at 50% DoD, versus 400–800 cycles for standard AGM batteries.

    Related OPzV Battery Models

    For OPzV2-100 OPzV battery specifications, volume pricing for solar/telecom projects, and OEM partnership programs: sales@chisen.cn | www.chisen.cn

    About CHISEN Battery: CHISEN is a professional lead-acid battery manufacturer in China with 20+ years of production experience. ISO 9001/CE/UL certified factory. OPzV tubular gel batteries exported to 50+ countries worldwide. For technical specifications and volume pricing: www.chisen.cn | sales@chisen.cn