title: “OPzV2-1000 2V1000Ah Tubular Gel Battery: Telecom / UPS / Solar Buyer Guide 2026”
slug: opzv2-1000-2v1000ah-telecom-ups-solar-buyer-guide-2026-09-01
date: 2026-09-01
primary_keyword: “OPzV2-1000 2V1000Ah”
model: “OPzV2-1000”
voltage_capacity: “2V1000Ah”
target_site: “leadacidbattery.cn”
languages_covered: [“en”, “es”, “fr”, “de”, “ru”, “ar”, “ja”, “ko”, “id”, “vi”]
rewrite_count: 0
OPzV2-1000 2V1000Ah Tubular Gel Battery: Complete Buyer Guide for Telecom / UPS / Solar Industrial Projects (2026)
Quick Answer: The CHISEN OPzV2-1000 2V1000Ah is a tubular gel VRLA battery delivering 20+ years float life and ≥1500 cycles at 80% depth-of-discharge (DOD). When buyers search for “OPzV2-1000 2V1000Ah” they are typically sourcing for telecom base stations, data center UPS, or solar energy storage projects where the 1000Ah capacity is the sweet spot — large enough to deliver multi-hour backup without over-spending on cells, yet standardized for 48V/108V/220V/380V system architectures. This guide helps B2B buyers, distributors, EPC contractors, and procurement managers evaluate whether the OPzV2-1000 2V1000Ah fits their project’s load profile, environmental conditions, and total-cost-of-ownership (TCO) requirements.
Key Takeaways (Read These First)
1. Model Decoded: OPzV2-1000 = OPz (Ortsfeste Panzerplatten, stationary tubular plate) + V (Valve Regulated) + 2 (2V cell) + 1000 (1000Ah @ C10, 10-hour rate)
2. Float Life: 20+ years at 25°C — designed for stationary backup power, not cyclic mobility applications
3. Cycle Life: ≥1500 cycles at 80% DOD, 2200+ cycles at 50% DOD, 4000+ cycles at 30% DOD (IEC 60896-21)
4. Standards Compliance: IEC 60896-21/22, IEC 61427, DIN 40472:2015, GB/T 19638.1-2014, YD/T 1360, Eurobat Long Life, BS 6290 Part 4, UL 1989
5. System Configurations: 24 cells = 48V / 54 cells = 108V (110V) / 108 cells = 216V (220V) / 190 cells = 380V three-phase DC
6. Best For: Telecom 4G/5G base stations, data center UPS (>500 kVA), solar/wind off-grid storage, railway signaling, marine, medical, substation DC panels
7. CHISEN Factory-Direct: 20+ years tubular battery expertise, 60+ countries exported, OEM/ODM available, MOQ 1 unit sample / 200+ units bulk
§1 Product Definition: What Exactly is OPzV2-1000 2V1000Ah?
The CHISEN OPzV2-1000 2V1000Ah is a valve-regulated tubular gel lead-acid battery with a nominal voltage of 2V DC and a rated capacity of 1000Ah (measured at the 10-hour discharge rate, C10, terminating at 1.80V/cell at 25°C). The “OPzV” prefix originates from the German DIN 40472 standard: “Ortsfeste Panzerplatten” (stationary tubular armored plates) with “V” indicating valve-regulated sealed construction. The trailing “1000” refers to capacity in ampere-hours.
Unlike flat-plate AGM batteries, the OPzV2-1000 2V1000Ah uses tubular positive plates — a design where the positive active material (PbO₂) is encased in corrosion-resistant fiberglass tubes with a cast Pb-Ca alloy spine. This structure prevents active material shedding and delivers 1.5-2× the cycle life of flat-plate designs, making it ideal for industrial backup where the battery must reliably cycle for 15-20+ years.
The electrolyte is nano-silica gel (SiO₂ fumed gel + dilute H₂SO₄) — a three-dimensional network that immobilizes the electrolyte, eliminating stratification and allowing operation across a wide temperature range of -40°C to +65°C. The battery is maintenance-free: no water topping is required during its service life.
Core Specifications at a Glance
| Parameter | Value | Standard / Note |
|---|---|---|
| Rated Voltage | 2V (DC) | Single cell, 1 cell unit |
| Rated Capacity | 1000Ah (C₁₀) | 10-hour rate to 1.80V/cell |
| Model | OPzV2-1000 | CHISEN model coding system |
| Series | Tubular Gel VRLA Battery | DIN 40472 design |
| Applicable Standards | IEC 60896 + DIN 40472 + GB/T 19638 (7 standards, see §4) | International / Regional / Industry |
| Dimensions (L×W×H) | 233 × 210 × 646 mm | ±2 mm tolerance |
| Total Height (with terminals) | 681 mm | Φ20-M8 terminal upright |
| Battery Weight (with electrolyte) | 71.0 kg (156.6 lbs) | ±5%, CHISEN measured |
| Terminal Type | Φ20-M8 insert copper terminal, tin-plated | |
| Terminal Torque | 10-12 N·m | M8 standard torque |
| Operating Temperature (Discharge) | -40°C ~ 65°C | Spec sheet value |
| Operating Temperature (Charge) | -30°C ~ 65°C | Spec sheet value |
| Operating Temperature (Storage) | -25°C ~ 45°C | Spec sheet value |
| Float Voltage | 2.25-2.27V/cell (25°C) | See §12 for compensation |
| Float Temperature Compensation | -3.3 mV/°C/cell | Manufacturer recommended |
| Equalize Voltage | 2.30-2.35V/cell (25°C) | ≤24h, once monthly |
| Cycle Charging Voltage | 2.35-2.40V/cell (25°C) | Cyclic operation |
| Max Charging Current | 250A | Spec sheet maximum |
| Max Discharge Current (5s) | 2500A | Spec sheet recommended |
| Self-discharge Rate | 2% / month (25°C) | Storable 1 year without recharge |
| Internal Resistance (fully charged, 25°C) | 0.5 mΩ | Spec sheet measured |
| Short-circuit Current | 5400A | Protection rating calculation |
| Cycle Life | ≥1500 cycles (80% DOD) | Tubular plate standard |
| Float Design Life | 20+ years (25°C) | Spec sheet nominal |
| Transport / Sea Freight | IMDG Class 8 / UN2794 / MSDS | Lead-acid classification |
§2 Why “OPzV2-1000 2V1000Ah” Is the Most-Searched Capacity in Industrial Backup
Industrial procurement teams searching for “OPzV2-1000 2V1000Ah” are typically weighing this capacity against two extremes: 500Ah (too small for multi-hour backup) and 2000Ah (oversized for most telecom/UPS loads, with 2× the cells to manage in series strings). The 1000Ah capacity is the engineering sweet spot because it delivers:
- Multi-hour backup at 48V: 24 cells × 2V = 48V system at 1000Ah = 48 kWh total. A 5 kW load runs for ~9.6 hours (accounting for inverter efficiency of 0.85 and 25°C operation).
- Manageable series counts: 24 cells per 48V string is easy to install, monitor, and maintain. Larger capacities (2000Ah) often require parallel strings, complicating balance and increasing failure risk.
- Standardized rack/cabinet fit: 233×210×646mm footprint allows standard 19″ battery cabinet integration.
- Mature global supply chain: 1000Ah is the most-produced tubular cell globally — 60+ countries’ distributors stock this capacity.
The “2V1000Ah” portion of the search term is critical: B2B buyers use the model + voltage + capacity combination as the unique identifier for cross-referencing OEM datasheets, IEC certificates, and project specifications. Generic searches like “2V 1000Ah battery” or “OPzV 1000” miss the specificity that procurement teams need.
§3 Model Naming Rules — OPzV Letter Breakdown per DIN 40472
The CHISEN OPzV2-1000 2V1000Ah model naming follows German DIN 40472:2015 (valve-regulated tubular) + international IEC 60896 standard naming conventions. The “OPz” abbreviation originates from the German “Ortsfeste Panzerplatten” meaning “stationary tubular armored plates.”
| Letter | German Full Name / Meaning | Technical Meaning |
|---|---|---|
| OPz | Ortsfeste Panzerplatten / Stationary Tubular Armored Plate | Positive plate = Tubular plate design |
| V | V = Valve Regulated (sealed) / V = Vented (open) | Valve-regulated sealed / GEL gel electrolyte |
| 2 | 2V cell voltage | 48V = 24 cells / 110V = 54 cells / 220V = 108 cells in series |
| 1000 | 1000Ah capacity (C₁₀ / 10-hour rate) | 10-hour rate discharge to 1.80V/cell |
Cross-reference with OPzS (DIN 40736-1): OPzS is the flooded (vented) counterpart using the same tubular positive plate construction. The “V” vs “S” distinction determines whether the electrolyte is sealed gel (OPzV) or open liquid (OPzS). For the OPzV2-1000 2V1000Ah specifically, the design is fully sealed and maintenance-free.
§4 Applicable International / European / Chinese / UK / North American Standards
The CHISEN OPzV2-1000 2V1000Ah is designed to comply with the following 7 international / regional / industry standards. Standard compliance = sales compliance + customs clearance + project bidding first-pass acceptance.
| Standard | Number | Scope of Application |
|---|---|---|
| International IEC | IEC 60896-21/22:2004 | Stationary valve-regulated batteries — Test methods + dimensions / terminals / markings |
| International IEC | IEC 61427 | Photovoltaic energy storage batteries (mandatory for solar project bidding) |
| German DIN | DIN 40472:2015 | Tubular valve-regulated batteries (gold standard) |
| Chinese National Standard | GB/T 19638.1-2014 | Stationary valve-regulated batteries (market sales compliance) |
| China Telecom | YD/T 1360 | Telecom operator backup power (mandatory for telecom tenders) |
| European | Eurobat Long Life | European battery life classification (> 12 years float) |
| UK / North America | BS 6290 Part 4 / UL 1989 | UK / North American backup power market |
Note: Third-party inspection certificates and destination-country special certifications (SONCAP for Nigeria, PVOC for Kenya, SASO for Saudi Arabia, BIS for India, ESMA for UAE) can be arranged per customer requirements with mainstream agencies including SGS, TUV, BV, and CTI.
§5 Physical Construction and Materials (Tubular Positive Plate vs Flat Plate)
The CHISEN OPzV2-1000 2V1000Ah physical structure design (tubular positive plate is the core, with cycle life 1.5-2× higher than flat plate batteries):
| Component | Material / Spec | Description |
|---|---|---|
| Positive Grid | Die-cast tubular grid, Pb-Ca alloy | Fiberglass tube wraps the positive active material (PbO₂) |
| Negative Grid | Radial negative grid, Pb-Ca alloy | Improves active material utilization |
| Separator | Imported PVC composite separator | Low resistance / high porosity / aging resistant |
| Electrolyte | High-purity nano gel electrolyte | SiO₂ fumed gel + H₂SO₄ |
| Container | High-strength ABS plastic | UL94 V-0 flame retardant grade |
| Cover | High-strength ABS resin | Sealed / flame retardant |
| Terminal Seal | Triple seal structure | Epoxy + rubber ring + anti-leak ring |
| Safety Valve | Integrated explosion-proof / acid filter | Automatic pressure regulation (0.1-0.2 MPa) |
OPzV Opaque Container Note: The OPzV2-1000 2V1000Ah uses opaque ABS (vs the transparent SAN used in OPzS flooded). On-site inspection is performed via terminal voltage measurement + infrared temperature scanning (no need to open the cover). This is acceptable for OPzV since the gel electrolyte is fully sealed and never requires water topping.
§6 CHISEN OPzV Series — 18 Models, 100Ah-3000Ah Complete Spec Table
The CHISEN OPzV series — 18 models from 100Ah to 3000Ah (Tubular GEL VRLA) — all comply with IEC 60896-21/22 + DIN 40472 + GB/T 19638.1-2014. The OPzV2-1000 2V1000Ah fits in the mid-to-upper capacity range. Cells within the same series can be flexibly mixed in series to form different voltage systems (48V = 24 cells / 110V = 54 cells / 220V = 108 cells / 380V = 190 cells).
| # | Model | Capacity (C₁₀ Ah) | L (mm) | W (mm) | H (mm) | Total H (mm) | Weight (kg) | Terminal |
|---|---|---|---|---|---|---|---|---|
| 1 | OPzV2-100 | 100 | 103 | 206 | 354 | 390 | 13.0 | Φ20-M8 |
| 2 | OPzV2-150 | 150 | 103 | 206 | 354 | 390 | 15.0 | Φ20-M8 |
| 3 | OPzV2-200 | 200 | 103 | 206 | 354 | 390 | 16.5 | Φ20-M8 |
| 4 | OPzV2-250 | 250 | 124 | 206 | 354 | 390 | 20.0 | Φ20-M8 |
| 5 | OPzV2-300 | 300 | 145 | 206 | 354 | 390 | 23.0 | Φ20-M8 |
| 6 | OPzV2-350 | 350 | 124 | 206 | 471 | 506 | 26.0 | Φ20-M8 |
| 7 | OPzV2-420 | 420 | 145 | 206 | 471 | 506 | 30.0 | Φ20-M8 |
| 8 | OPzV2-500 | 500 | 166 | 206 | 471 | 506 | 34.0 | Φ20-M8 |
| 9 | OPzV2-600 | 600 | 145 | 206 | 646 | 681 | 42.0 | Φ20-M8 |
| 10 | OPzV2-700 | 700 | 254 | 210 | 471 | 506 | 52.0 | Φ20-M8 |
| 11 | OPzV2-800 | 800 | 191 | 210 | 646 | 681 | 57.0 | Φ20-M8 |
| 12 | OPzV2-1000 | 1000 | 233 | 210 | 646 | 681 | 71.0 | Φ20-M8 |
| 13 | OPzV2-1200 | 1200 | 275 | 210 | 646 | 681 | 82.0 | Φ20-M8 |
| 14 | OPzV2-1500 | 1500 | 275 | 210 | 796 | 831 | 103.0 | Φ20-M8 |
| 15 | OPzV2-2000 | 2000 | 399 | 212 | 772 | 807 | 142.0 | Φ20-M8 |
| 16 | OPzV2-2250 | 2250 | 487 | 212 | 772 | 807 | 175.0 | Φ20-M8 |
| 17 | OPzV2-2500 | 2500 | 487 | 212 | 772 | 807 | 180.0 | Φ20-M8 |
| 18 | OPzV2-3000 | 3000 | 576 | 212 | 772 | 807 | 210.0 | Φ20-M8 |
Voltage bus calculation: 48V = 24 cells in series / 110V = 54 cells / 220V = 108 cells / 380V three-phase DC = 190 cells. The OPzV2-1000 2V1000Ah is one of the most popular capacities for 48V telecom systems.
§7 Primary Applications + Real Customer Cases
The CHISEN OPzV2-1000 2V1000Ah suits the following 5 high-frequency industrial scenarios (exported to 60+ countries with multi-industry project deployments):
7.1 Telecom Base Stations & Telecommunications
4G / 5G / island / border / Gobi Desert unattended base station backup. The OPzV valve-regulated maintenance-free design dramatically reduces OPEX in remote sites. A 48V 1000Ah system delivers 8-10 hours backup for a 5 kW telecom load.
7.2 Renewable Energy Systems
Off-grid / on-grid solar storage, wind hybrid systems, island microgrids. Configurable in 3-5 / 5-10 / 10-20 kWh modules. The OPzV2-1000 2V1000Ah at 48V (24 cells) = 48 kWh per string — ideal for commercial-scale solar.
7.3 Extreme Environment Applications
Nuclear power plant backup / offshore wind platforms / oil & gas SCADA / island lighthouses. Wide temperature range + vibration-resistant design.
7.4 Outdoor Telecom Equipment
RRU remote units / microwave transmission / FTTH fiber access terminals. Valve-regulated sealing is suitable for cabinet sealed-space installation.
7.5 Electric Power Utilities
Substation control power / power plant DC panels / distribution automation terminals. 48V / 110V / 220V / 380V DC bus options.
Real Customer Cases (5 international projects)
- Case 1: European telecom operator — Alpine 4G border unmanned base station. 5-year cooperation / 48V 100Ah system / -25°C cold environment / valve-regulated maintenance-free design reduces remote site OPEX by 40%
- Case 2: South American national grid — Andes Mountains 3000m high-altitude substation. 4-year tracking / 2V 500Ah 1000+ cells in series / high-altitude extreme temperature / DIN 40472 standard compliance
- Case 3: Middle East state railway — 2500 km passenger section signal power. Desert extreme temperature -5 to 55°C / multi-voltage configuration (48V / 108V / 220V / 380V) / vibration-resistant design passes EN 50155
- Case 4: Southeast Asian island EPC off-grid solar storage. Tropical humid island 3-year tracking / 48V 200Ah × 32 groups / salt corrosion environment / deep cycle ≥1200 times
- Case 5: African solar village off-grid power project. Sub-Saharan high temperature 50°C / 24V/48V hybrid system / 4 years stable operation / valve-regulated maintenance-free adapted for unmanned operation
§8 OPzV vs OPzS — 22-Dimension Comparison
CHISEN OPzV (valve-regulated gel) vs OPzS (flooded) — both use tubular positive plates (OPzV = DIN 40472 / OPzS = DIN 40736-1) with 20+ years float design life. Selection depends on 6 dimensions:
8.1 Core Electrical Parameters (10 rows)
| Parameter | OPzV Valve-Regulated Gel | OPzS Flooded |
|---|---|---|
| Type | VRLA GEL | Vented Flooded |
| Electrolyte | Nano silica gel (immobile) | Dilute sulfuric acid 1.24 g/cm³ (liquid) |
| Positive Plate | Die-cast tubular (Pb-Ca alloy) | Die-cast tubular (Pb-Sb low-antimony alloy) |
| Applicable DIN Standard | DIN 40472:2015 (tubular valve-regulated) | DIN 40736-1:1985 (tubular flooded) |
| Container | ABS flame retardant UL94 V-0 (opaque) | SAN transparent plastic (visible liquid level) |
| Short-circuit Current (100Ah) | 1700A | 1500A |
| Internal Resistance (20°C) | 0.0011 Ohm (1.1 mΩ) | 0.001 Ohm (1.0 mΩ) |
| Max Charging Current | 30A (0.30C₁₀) | 20A (0.20C₁₀) |
| Self-discharge Rate (20°C full) | 2%/month | 3%/month |
| Float Voltage (25°C) | 2.25-2.27V/cell | 2.24V/cell |
| Equalize Voltage (25°C) | 2.30-2.35V/cell | 2.35-2.40V/cell |
8.2 Environmental Adaptation (4 rows)
| Parameter | OPzV | OPzS |
|---|---|---|
| Operating Temperature (Discharge) | -40°C ~ 65°C (gel high-temp resistant) | -40°C ~ 60°C |
| Operating Temperature (Charge) | -30°C ~ 65°C | -30°C ~ 55°C |
| Capacity @ 40°C | ~105% | 108% |
| Capacity @ -20°C | ~55% | ~65% (estimated) |
8.3 Life and Cycle (4 rows)
| Parameter | OPzV | OPzS |
|---|---|---|
| Float Life (25°C) | 20+ years | 20+ years (requires periodic refilling) |
| Float Life (30°C) | ~10 years | 8-10 years |
| Cycle Life (DOD 80%) | ≥1500 cycles | 1500-2500 cycles |
| Cycle Life (DOD 50%) | 2200+ cycles | 2500-4000 cycles |
8.4 Selection Decision (if you care about X → choose Y)
| Concern / Application Scenario | Recommended Choice | Reason |
|---|---|---|
| Unattended / remote / island / border base stations | OPzV | Maintenance-free + vertical/horizontal/side installation + valve sealing (40% OPEX savings) |
| Tropical / desert / extreme high-temp rooms (>45°C sustained) | OPzV | Gel high-temp resistant (-30~65°C charge vs OPzS -30~55°C) |
| Deep cycle applications (PV daily 1 cycle at 80% DOD) | OPzS | 50% higher cycle life (2500 vs 1500 cycles) |
| Large UPS data centers (>500 kVA high rate) | OPzS | Long deep-cycle life (1500-2500 cycles) + large capacity (2000+ Ah) reduces series count |
| Mobile / tilted installation / vehicle batteries | OPzV | Vertical/horizontal/side installation (valve-regulated, no leakage) |
| Transparent inspection / on-site maintenance (manned rooms with regular patrol) | OPzS | SAN transparent container + filter vent (visible maintenance + acid mist filtration) |
§9 Capacity Selection Formula + Solar/Wind Configuration Parameters
9.1 Capacity Selection Formula
Battery Capacity (Ah) = Load Power (W) × Backup Duration (h) ÷ Bus Voltage (V) ÷ Inverter Efficiency ÷ Temperature Coefficient
Where: Inverter efficiency UPS 0.85 / DC load 1.0; Temperature coefficient 25°C = 1.0 / 35°C = 0.85 / 45°C = 0.70 (high-temp derating); recommend 20-30% margin.
9.2 Worked Examples
Example 1: Telecom base station 48V system, 4-8h backup before diesel generator starts. Load power 1 kW, backup 4h, bus 48V, efficiency 0.85, temp 25°C. Capacity = 1000 × 4 ÷ 48 ÷ 0.85 ÷ 1.0 ≈ 98Ah. Recommend OPzV2-100 (24 cells in series for 48V), 2% margin.
Example 2: Solar off-grid storage 5 kW system, 4h backup. Load power 5 kW, backup 4h, bus 48V, efficiency 0.85, temp 25°C. Capacity = 5000 × 4 ÷ 48 ÷ 0.85 ÷ 1.0 ≈ 490Ah. Recommend OPzV2-500 (24 cells in series for 48V), 2% margin.
Example 3: 110V DC panel, 10h backup. Load power 0.5 kW, backup 10h, bus 110V, efficiency 1.0 (DC load), temp 25°C. Capacity = 500 × 10 ÷ 110 ÷ 1.0 ÷ 1.0 ≈ 45Ah. Recommend OPzV2-100 (54 cells in series for 108V), 100% margin.
Example 4: 220V three-phase DC industrial power, 30 min full-load backup. Load power 100 kW, backup 0.5h, bus 220V, efficiency 1.0, temp 25°C. Capacity = 100000 × 0.5 ÷ 220 ÷ 1.0 ÷ 1.0 ≈ 227Ah. Recommend OPzV2-250 (108 cells in series for 220V), 10% margin.
Example 5 (OPzV2-1000 sweet spot): Medium telecom central office or data center UPS 100 kW, 15 min backup. Load power 100 kW, backup 0.25h, bus 380V, efficiency 0.85, temp 25°C. Capacity = 100000 × 0.25 ÷ 380 ÷ 0.85 ÷ 1.0 ≈ 77Ah per string. With 10× parallel strings at 190 cells each: OPzV2-1000 2V1000Ah is ideal for sub-station DC panels at 108V-220V with 4-6h backup (54-108 cells per string).
9.3 Solar / Wind System Configuration Parameters (CHISEN spec sheet p1, measured)
| Parameter | Setpoint | Description |
|---|---|---|
| Over voltage disconnect | 2.45 ± 0.01V/cell @25°C | Overvoltage disconnect (charge complete / solar controller disconnects battery) |
| Regulation/equalize voltage | 2.40 ± 0.01V/cell @25°C | Equalize voltage (periodic balance, every 30-60 days) |
| Array reconnect voltage | 2.25 ± 0.005V/cell @25°C | Solar array reconnect voltage (recovery from float) |
| Float voltage setting | 2.27 ± 0.005V/cell @25°C | Float voltage (solar off-grid stable state) |
| Low voltage alarm | 1.95 ± 0.005V/cell @25°C | Low voltage alarm (load about to disconnect) |
| Low voltage disconnect | 1.90 ± 0.005V/cell @25°C | Low voltage disconnect (load disconnects, protects battery from over-discharge) |
| Load reconnect voltage | 2.09 ± 0.01V/cell @25°C | Load reconnect voltage (recovery from over-discharge) |
| Temp. compensate coefficient | -3 ~ -5 mV/°C/cell | Temperature compensation (float -3.3mV, equalize -5mV) |
Engineer free sizing: Send “system voltage + load power + backup duration + operating temperature” to sales@chisen.cn, complete Excel sizing table + quotation returned within 24 hours.
§10 Cycle Life Deep-Dive + 20-Year TCO Life-Cycle Cost Comparison
10.1 Cycle Life
CHISEN OPzV2-1000 2V1000Ah cycle life ≥1500 cycles (depth of discharge 80%, IEC 60896-21 standard test conditions, 25°C). The tubular positive plate (Tubular plate) design is the core advantage — at the same capacity, cycle life is 1.5-2× that of flat-plate batteries.
10.2 Tubular vs Flat Plate Positive Plate Cycle Life Comparison (DIN 40472 + measured)
| Depth of Discharge (DOD) | Tubular (CHISEN OPzV/OPzS) | Flat Plate (AGM) | Life Multiplier |
|---|---|---|---|
| 80% DOD (deep cycle) | 1500-2500 cycles | 500-1000 cycles | ×1.5-2.5 |
| 50% DOD (medium cycle) | 2200-3500 cycles | 750-1500 cycles | ×2-3 |
| 30% DOD (shallow cycle) | 3500-6500 cycles | 1500-3000 cycles | ×2-3 |
| Float standby (no cycle) | 20+ years (25°C) | 10-15 years (25°C) | ×1.5-2 |
10.3 20-Year Total Cost of Ownership (TCO) Comparison
| Cost Item | OPzV Tubular Gel VRLA (CHISEN) | OPzS Tubular Flooded (CHISEN) | AGM Flat-Plate VRLA |
|---|---|---|---|
| Initial Purchase Cost (incl. install) | Medium (tubular gel) | Low (tubular flooded / mature process) | Lowest (flat plate) |
| Design Service Life | 20+ years (25°C float) | 20-25 years (25°C float, periodic maintenance) | 8-12 years (25°C float) |
| Replacements Needed in 20 Years | 0 (one-time purchase) | 0 (with good maintenance) | 1-2 (around year 8 / year 16) |
| Annual Maintenance Cost | Very low (maintenance-free) | Medium (water refill every 3-6 months + cleaning) | Medium (voltage monitoring + cleaning) |
| 20-Year TCO | Medium (higher purchase + low maintenance) | Low (lower purchase + medium maintenance) | High (low purchase + short life = multiple replacements) |
B2B Key Conclusion: Tubular batteries’ initial purchase price is 1.5-2× higher than flat-plate AGM, but the life is 2× longer, making the 20-year TCO 30-40% lower than AGM. For OPzV2-1000 2V1000Ah specifically, the TCO advantage is most pronounced in 15-20 year telecom and data center projects where replacement labor and downtime costs are significant.
§11 Float Voltage Settings and Temperature Compensation
CHISEN OPzV2-1000 2V1000Ah standard float voltage is 2.25-2.27V/cell (25°C), with temperature compensation required: -3.3mV/°C/cell.
11.1 Float Voltage Temperature Compensation Formula (IEC 60896-21:2004)
V_float (measured temperature) = 2.27V + (-3.3mV/°C) × (measured temperature – 25°C)
| Ambient Temperature | Calculation | Compensated Float Voltage |
|---|---|---|
| 25°C (reference) | 2.27V (no compensation) | 2.25-2.27V |
| 15°C | 2.27 + (-3.3mV × -10) | 2.30V |
| 35°C | 2.27 + (-3.3mV × 10) | 2.24V |
| 45°C | 2.27 + (-3.3mV × 20) | 2.20V |
| 55°C | 2.27 + (-3.3mV × 30) | 2.17V |
11.2 Equalize Voltage (Independent Compensation)
2.30-2.35V/cell (@25°C) with -5mV/°C/cell compensation, purpose: lagging battery supplementary charge / monthly once, switch back to float after equalize.
Float voltage accuracy requirement: ±1% (±25mV), exceeding this range will significantly shorten battery life.
Float current: < 5mA/Ah (CHISEN spec), i.e. 1000Ah battery float current < 5A.
§12 Operating Temperature Range (Discharge / Charge / Storage)
CHISEN OPzV2-1000 2V1000Ah operating temperature by scenario (spec sheet classification): discharge -40°C ~ 65°C (gel electrolyte temperature resistance better than flooded), charge -30°C ~ 65°C (high-temp upper limit meets tropical region applications), storage -25°C ~ 45°C. Optimal operating temperature 25°C (rated capacity definition point).
12.1 Temperature Effect on Capacity (OPzV spec sheet Capacity vs Temperature curve, 10HR capacity)
| Ambient Temperature | Capacity (10HR) | Application Recommendation |
|---|---|---|
| 50°C | ~107% | High-temp limit, life significantly reduced (>30°C each +10°C life halved) |
| 40°C | ~105% | High-temp operation, forced ventilation (life ~5 years) |
| 25°C | 100% | Rated capacity reference (design life 20 years) |
| 0°C | ~80% | Low-temp operation, slight capacity reduction |
| -20°C | ~55% | Extreme low-temp operation, obvious capacity decay (not suitable for high-current discharge) |
12.2 High-Altitude Use Requirements (GB/T 19638)
≤3000m normal use without special treatment; >3000m each +1000m battery capacity derating 8%; extreme high altitude (>5000m) requires special customization (low-pressure seal + reinforced container).
§13 Self-Discharge Rate and Storage Conditions
CHISEN OPzV2-1000 2V1000Ah self-discharge rate is 2%/month (CHISEN spec measured value, 20°C full charge storage — note: industry commonly uses 25°C reference, spec given 20°C).
13.1 Self-Discharge Curve by Storage Temperature (CHISEN spec Self Discharge Characteristics measured)
| Storage Temperature | 6 Months Remaining | 12 Months Remaining | 18 Months Remaining | 24 Months Remaining |
|---|---|---|---|---|
| 10°C | ~92% | ~85% | ~80% | ~75% |
| 20°C | ~88% | ~78% | ~70% | ~60% |
| 30°C | ~70% | ~50% | Recharge needed | Recharge needed |
| 40°C | ~55% | Recharge needed | Recharge needed | Recharge needed |
Storage recommendation: Full charge factory state stored at -25°C ~ 45°C dry ventilated environment, avoid direct sunlight, organic solvents, corrosive gases. Recharge every 3-6 months (constant voltage 2.27V/cell × 24 hours). Batteries stored >12 months need capacity test before reuse.
§14 Maximum Charging Current and Discharge Termination Voltage
CHISEN OPzV2-1000 2V1000Ah recommended max charging current: 250A (max allowed, spec measured).
14.1 Charging Parameter Recommendation Table (IEC 60896 + GB/T 19638)
| Charging Stage | Voltage (25°C) | Current Limit | Application Scenario |
|---|---|---|---|
| Float | 2.25-2.27V/cell (OPzV) / 2.24V/cell (OPzS) | < 5mA/Ah (~5A for 1000Ah) | Backup power / float standby |
| Equalize | 2.30-2.35V/cell (OPzV) / 2.35-2.40V/cell (OPzS) | ≤ 0.25C₁₀ A | Monthly once / lagging battery supplement |
| Cycle Charge | 2.35-2.40V/cell | ≤ 0.20C₁₀ A | Solar storage / deep cycle |
| Boost (Solar) | 2.35V ± 0.005V/cell | ≤ 0.20C₁₀ A | Solar/wind storage (emergency charge) |
Charging termination judgment: When charging current drops below 0.5% C₁₀, the battery is considered fully charged.
14.2 Discharge Termination Voltage by Current
| Discharge Current I(A) | Termination Voltage Vpc | Application Scenario |
|---|---|---|
| I < 0.05C | ≥ 1.90Vpc | Very small current long-term discharge (standby monitoring) |
| 0.05C ≤ I < 0.08C | ≥ 1.85Vpc | Small current float backup |
| 0.08C ≤ I < 0.2C | ≥ 1.80Vpc | 10HR standard discharge |
| 0.2C ≤ I < 0.6C | ≥ 1.75Vpc | 5HR medium current discharge |
| 0.6C ≤ I < 1.0C | ≥ 1.70Vpc | 1HR high current discharge |
| 1.0C ≤ I < 2.0C | ≥ 1.60Vpc | High power pulse discharge |
§15 OEM / ODM One-Stop Customization
CHISEN OPzV2-1000 2V1000Ah supports OEM / ODM one-stop customization services. All customization does not affect standard specification performance.
| Customization Type | Details |
|---|---|
| Container Color | Pantone color code matching (standard gray-white + red/blue/green/yellow/orange + customer-specified colors) |
| LOGO Silk-Screen | LOGO silk-screen on container (no language restriction, any language) |
| Laser Marking | Battery cover side laser marking (model / serial number / production date / customer code / barcode) |
| Color Box / Neutral Carton | Standard color box + neutral outer carton, customizable Logo / color / barcode / anti-counterfeit label |
| Label Customization | Battery label layout per customer requirements (no language restriction) |
| Terminal Replacement | Φ16-M6 / Φ20-M8 / Φ24-M10 three options (standard Φ20-M8) |
| Terminal Seal Upgrade | Standard + triple seal structure + explosion-proof acid filter (OPzS includes optional acid filter plug) |
| Third-Party Test Report | Optional SGS / TUV / BV pre-shipment inspection + IEC 60896 complete test report |
MOQ and Lead Time: Sample order from 1 unit; small batch 24 units (24V system 12 cells + 12 spares) / 48 units (48V system 24 cells + 24 spares); bulk wholesale 200+ units (multi-voltage combination with full OEM customization). Specific lead time + warranty details at end of article.
§16 Frequently Asked Questions (FAQ) — 20 Engineer Operation Q&A
CHISEN OPzV2-1000 2V1000Ah FAQ (20 items). Each addresses the highest-frequency questions from industrial field engineers, covering technical parameters, selection, ordering, transport, after-sales full-process.
Q1: What is the float voltage setting for OPzV2-1000?
Standard float voltage 2.25-2.27V/cell @25°C, must perform temperature compensation -3.3mV/°C/cell (IEC 60896-21).
Q2: What is the cycle life of OPzV2-1000?
≥1500 cycles (depth of discharge 80%, 25°C), float standby life 20+ years. Tubular positive plate design is the core advantage (1.5-2× higher than flat-plate AGM).
Q3: What is the operating temperature range of OPzV2-1000?
-40°C ~ 65°C discharge / -30°C ~ 65°C charge / -25°C ~ 45°C storage (optimal 25°C). OPzV gel valve-regulated temperature resistance better than flooded type.
Q4: What is the self-discharge rate of OPzV2-1000?
2%/month (CHISEN spec measured at 20°C full charge storage), can be shelved for 1 year without supplementary charging.
Q5: What type of battery is OPzV2-1000?
Tubular gel valve-regulated sealed lead-acid battery (Tubular GEL VRLA Battery), tubular positive plate, gel electrolyte, valve-regulated sealed.
Q6: What is the difference between OPzV2-1000 and OPzS2-1000?
OPzV is valve-regulated sealed GEL gel maintenance-free; OPzS is flooded open-type requiring periodic water topping (vertical preferred). OPzV higher short-circuit current (5400A vs 3700A for 1000Ah), OPzS lower price (mature process).
Q7: What is the internal resistance of OPzV2-1000?
Fully charged state ~0.5 mΩ (25°C), short-circuit current ~5400A.
Q8: How to charge OPzV2-1000?
Recommend constant voltage constant current (CC-CV), float 2.25-2.27V / equalize 2.30-2.35V / cycle 2.35-2.40V. Max charging current 250A.
Q9: What are the storage conditions for OPzV2-1000?
-25°C ~ 45°C dry ventilated environment, no supplementary charging needed within 6 months storage. Storage >6 months recommend supplementary charge (2.25-2.27V/cell × 24h).
Q10: What standards does OPzV2-1000 comply with?
7+ international/regional/industry standards — see §4 for full list.
Q11: What is the weight of OPzV2-1000?
71.0 kg (156.6 lbs), including electrolyte (CHISEN spec measured); excluding packaging / excluding terminal nuts.
Q12: What are the dimensions of OPzV2-1000?
L 233mm × W 210mm × H 681mm (CHISEN spec measured, including terminals).
Q13: What is the terminal torque for OPzV2-1000?
10-12 N·m (Φ20-M8 bolt terminal).
Q14: What is the short-circuit current of OPzV2-1000?
~5400A (25°C full charge state), meets large UPS short-circuit protection requirements.
Q15: What is the float design life of OPzV2-1000?
20+ years (25°C float voltage 2.25-2.27V, temperature compensation -3.3mV/°C).
Q16: How to choose between OPzV2-1000 and AGM flat-plate battery?
Tubular positive plate longer life (1500+ cycles vs 500-1000 cycles), suitable for long-term projects / critical backup; AGM flat-plate cheaper, suitable for short-term / budget-sensitive. See §10 TCO section.
Q17: What is the installation orientation for OPzV2-1000?
Can be vertical / horizontal / side installation (not inverted), suitable for cabinet sealed space. OPzV valve-regulated sealed design no electrolyte leakage risk.
Q18: Does OPzV2-1000 require water topping?
No. OPzV valve-regulated sealed + gel electrolyte requires no water topping during life cycle.
Q19: What documents are needed for OPzV2-1000 export?
Standard documents: packing list + commercial invoice + CO certificate of origin + MSDS + UN2794 transport identification. Destination-country special certifications (SONCAP / PVOC / SASO / BIS / ESMA) assist as needed.
Q20: What is the MOQ and lead time for OPzV2-1000?
Sample 1 unit / 24V system 12 cells / 48V system 24 cells / 110V system 54 cells / 220V system 108 cells. Bulk 200+ units enjoy wholesale price. Specific lead time please email sales@chisen.cn.
§17 Daily Use and Maintenance Recommendations (Engineer Operation Guide)
CHISEN OPzV2-1000 2V1000Ah daily use + maintenance recommendations (engineer operation guide). Following these specifications can significantly extend battery life to 20+ years:
1. Charger Selection: Must use industrial-grade intelligent charger (with pulse desulfation function, matching 12V/24V/48V system voltage); float 2.25-2.27V/cell (25°C) + temperature compensation -3.3mV/°C/cell; equalize 2.30-2.35V/cell (monthly once, < 24h); max charging current 250A (use with current limit, per spec measured), avoid high current shock to plates.
2. Installation Environment: Battery cabinet / rack installation, ≥100mm from ground (moisture-proof), ≥50mm from wall (heat dissipation); operating temperature -40°C ~ 65°C (discharge) / -30°C ~ 65°C (charge), forced ventilation cooling above 45°C; altitude >3000m each +1000m capacity derating 8% (GB/T 19638); away from heat sources + direct sunlight + corrosive gases.
3. Routine Inspection (Weekly 1 time / remote sites monthly 1 time): Terminal connection check torque 10-12 N·m, no looseness / oxidation / heating (infrared temperature measurement); container check no bulging / leakage / crack (OPzV gel no leakage but check container); individual voltage deviation < ±0.05V (exceed then enter equalize state); container temperature vs ambient temperature difference < 5°C (exceed then troubleshoot connection / charging issues).
4. Long-term Storage Specification: Full charge state storage at -25°C ~ 45°C dry ventilated environment (avoid direct sunlight); supplementary charge every 3-6 months (constant voltage 2.27V/cell × 24h); self-discharge rate 2%/month (25°C), over 12 months without charging need capacity test before reuse; batteries stored >2 years recommend derating use.
5. First Use / Long-term Idle Battery Activation: Factory new battery after receiving first check terminal voltage + appearance; idle >6 months first use 0.05C small current discharge to 1.80V/cell, then charge per normal charging curve; series strings (48V / 110V / 220V) before commissioning need “group balancing” to ensure each cell voltage deviation < 0.05V.
6. Safety Notes: Avoid metal tools simultaneously contacting positive and negative (short-circuit current 5400A lethal); charging area no fire / smoke (lead-acid battery charging produces hydrogen, explosion risk with open flame); wear protective goggles + acid-resistant gloves operation (electrolyte contains dilute sulfuric acid, splash into eyes immediately rinse with water 15min and seek medical attention); scrap batteries per UN2794 hazardous material disposal process (do not privately dismantle electrolyte).
§18 CHISEN Factory Strength + Global Service System (Why Choose CHISEN)
Factory Scale: CHISEN brand established in 2002, 20+ years specializing in tubular batteries; 200+ model complete product line covering 2V / 6V / 8V / 12V all voltage levels, capacity 4Ah-3000Ah; mainstream models always in stock 100,000+ units (immediate shipment).
Global Service Network: 60+ countries export experience (China / Southeast Asia / Europe / Africa / Middle East / Latin America / Central Asia / Oceania); telecom / power / data center / solar / railway industrial projects; 7×24 multi-language technical support (English / Chinese / Spanish / French / Arabic / Russian / Vietnamese); 12h email response / 24h complete quotation / 48h complex project plan.
Quality Control: Cooperate with customers for certifications (certification items determined by customers); 100% factory inspection (capacity test + internal resistance test + voltage test + appearance inspection); SPC statistical process control for critical processes (plate pasting / plate group assembly / formation / sealing); cooperate with SGS / TUV / BV / CTI third-party pre-shipment inspection per customer requirements.
Export Support: First-hand customs documents (commercial invoice / packing list / CO certificate of origin / MSDS / UN2794 transport identification / IEC 60896 complete test report); multi-language technical documents (English / Chinese / Spanish / French / Arabic / Russian); assist destination-country special certifications SONCAP (Nigeria) / PVOC (Kenya) / SASO (Saudi Arabia) / BIS (India) / ESMA (UAE) per customer requirements.
Long-term Cooperation Policy: Long-term cooperation customer exclusive technical liaison; OEM strategic partners can share sales leads + training support.
Sustainability Commitment: Lead-acid batteries recyclable; cooperate with customers for certifications (certification items determined by customers); EU RoHS / REACH / WEEE compliance (export to Europe without barriers).
§19 CHISEN OPzV2-1000 2V1000Ah Contact Information — 24h Reply
【CHISEN Battery】 20+ years specializing in tubular battery export / 60+ countries customer validation.
📞 Contact Methods:
1. Email Inquiry: sales@chisen.cn (24h reply with complete quotation + selection plan)
2. Phone / WhatsApp: +86 131 6622 6999
3. Website: https://www.chisen.cn
4. WhatsApp Direct: https://wa.me/8613166226999
5. Factory Address: Room 3402, Bldg 2, Fortune Financial Center, Hangzhou, China
Internal Links for OPzV2-1000 2V1000Ah Reference:
- CHISEN main site OPzV series: https://www.chisen.cn/en/TubularGelBattery/OPzV.html
- CHISEN main site OPzV2-1000 2V1000Ah product page: https://www.chisen.cn/en/OPzV2-1000/2V1000Ah.html
- CHISEN main site OPzV2-1000 detailed specification: https://www.chisen.cn/en/h-nd-889.html
- CHISEN energy sub-site OPzV series: https://www.chisenenergy.com/series/opzv-battery/
- CHISEN energy sub-site OPzV vs OPzS comparison: https://www.chisenenergy.com/ko/knowledge/opzs-vs-opzv/
- CHISEN comprehensive lead-acid battery products: https://www.chisenbattery.com/en/h-col-112.html
- Lead-acid battery content site (this article’s home): https://leadacidbattery.cn
§20 Expert Summary — Is OPzV2-1000 2V1000Ah the Right Choice for Your Project?
Choose CHISEN OPzV2-1000 2V1000Ah if:
- ✅ Your application is telecom base station (4G/5G, especially unattended remote / island / border / Gobi Desert)
- ✅ Your application is data center UPS (>500 kVA medium-large) with 48V/108V/220V/380V configuration
- ✅ Your application is solar/wind off-grid storage in tropical / desert / extreme high-temperature environments (>45°C sustained)
- ✅ Your application is railway signaling with vibration-resistant requirement (EN 50155)
- ✅ Your application is outdoor telecom cabinets (RRU / microwave / FTTH) requiring maintenance-free + valve-sealed design
- ✅ Your project requires 20+ years float life with TCO optimization over 15-20 year horizon
- ✅ You require compliance with 7+ international standards for multi-country project bidding
Choose OPzS (flooded) instead if:
- Your project allows periodic water topping maintenance (3-6 months)
- You have manned equipment room for on-site liquid level / plate inspection
- You need lower upfront purchase cost (OPzS ~15-25% cheaper than OPzV)
- Your project is large data center UPS with deeper cycle requirement (DOD 80% daily)
Choose AGM flat-plate instead if:
- Your project is short-term / budget-sensitive with no requirement for 15+ year life
- Your application is automotive starting / e-bike / motorcycle / small UPS (<30 min backup)
- Your project accepts 8-12 year life and is willing to replace batteries every ~8 years
For the OPzV2-1000 2V1000Ah specifically, the 1000Ah capacity is most appropriate for:
- 48V telecom systems with 8-12 hour backup (5 kW load)
- 108V/220V substation DC panels with 4-6 hour backup
- Solar off-grid commercial systems (5-10 kW with 4h backup)
- Data center UPS modules (100-500 kW per 380V string)
§21 Call to Action — Get Quote, Sizing, and Sample
Ready to source CHISEN OPzV2-1000 2V1000Ah for your industrial project?
1. Get Free Sizing: Email your system voltage + load power + backup duration + operating temperature to sales@chisen.cn — receive complete Excel sizing table within 24 hours
2. Get FOB/CIF/EXW Quotation: Email your destination port + order quantity + required certifications to sales@chisen.cn — receive formal quotation within 24 hours
3. Order Samples: MOQ 1 unit for sample; small batch from 24 units (48V system); bulk wholesale 200+ units
4. Discuss OEM/ODM: Container color, LOGO silk-screen, laser marking, color box packaging, label customization — all available
5. Visit Factory: Schedule on-site factory visit in Hangzhou, China — we welcome customer visits
【CHISEN Battery】 — Your trusted 20+ year tubular battery partner, 60+ countries customer validation, ready to support your project from selection to delivery to after-sales.
Email: sales@chisen.cn
Phone / WhatsApp: +86 131 6622 6999
WhatsApp Direct: https://wa.me/8613166226999
Website: https://www.chisen.cn
Address: Room 3402, Bldg 2, Fortune Financial Center, Hangzhou, China
*Article published on 2026-09-01 by CHISEN Battery International Sales Team. For the latest technical specifications and quotations, please contact sales@chisen.cn.*
