The OPzV2-150 2V150Ah is a 2-volt, 150-ampere-hour tubular gel valve-regulated lead-acid (VRLA) battery designed by CHISEN for industrial backup power in telecom base stations, UPS systems, solar / wind energy storage, railway signaling and similar critical-load scenarios. It uses DIN 40472 compliant tubular positive plates with nano-gel electrolyte, delivering ≥1,500 cycles at 80% depth of discharge (DOD) and a 20+ year float design life at 25°C. Cells are typically configured 24 in series for 48V systems, 54 in series for 110V DC, 108 in series for 220V, or 190 cells in series for 380V three-phase DC plant. For buyers comparing tubular gel OPzV against AGM or flooded OPzS, the OPzV2-150 is the maintenance-free choice for unattended sites, while OPzS remains more cost-effective for regularly-manned locations. This guide walks through specs, sizing, deployment scenarios, certification, OEM/ODM options and 2026 pricing benchmarks so procurement teams can make a defensible sourcing decision.
Key Takeaways
1. Tubular gel chemistry, 20+ year float life. OPzV2-150 2V150Ah uses DIN 40472 compliant tubular positive plates plus nano-silica gel electrolyte. Float design life ≥20 years at 25°C, cycle life ≥1,500 cycles at 80% DOD — typically 1.5×–2× longer than flat-plate AGM in deep-cycling service.
2. Maintenance-free, install-anywhere. Valve-regulated sealed construction eliminates watering. Can be installed upright, on its side, or on its short edge (never inverted), making it ideal for cramped telecom cabinets, containerized base stations, and remote PV sites.
3. Wide operating window. Discharge from -40°C to +65°C, charge from -30°C to +65°C, storage from -25°C to +45°C. Float voltage 2.25–2.27 V/cell at 25°C with -3.3 mV/°C temperature compensation (IEC 60896-21).
4. 4-cell string configuration matches standard DC plants. 24 cells = 48V (telecom / UPS / solar PV), 54 cells = 108V (compatible with 110V DC switchgear), 108 cells = 216V (compatible with 220V industrial), 190 cells = 380V (three-phase data-center UPS). Capacity scales by paralleling strings.
5. 7+ international certifications. Compliant with IEC 60896-21/22:2004, IEC 61427 (solar ESS), DIN 40472:2015 (gold standard), GB/T 19638.1-2014 (China), YD/T 1360 (China telecom), Eurobat Long Life (>12 years float), BS 6290 Part 4 / UL 1989. SONCAP / PVOC / SASO / BIS / ESMA destination-country certificates available on request.
Opaque (visual check via terminal voltage + IR temp)
Terminal Type
Φ20-M8 female thread
Torque 10–12 N·m
Weight (filled)
≈ 12.0 kg
Specified per CHISEN datasheet
Standards
IEC 60896 / DIN 40472 / GB/T 19638 / YD/T 1360 / Eurobat / BS 6290 / UL 1989
7+ certifications
Shipping
IMDG Class 8 / UN2794 / MSDS
Sea freight compliant
The Pain — What Buyers Get Wrong About “Cheap” 2V 150Ah Batteries
When sourcing a 2V 150Ah cell for a 48V telecom string, a 110V substation DC plant, or a small off-grid PV cabinet, three failure patterns show up consistently in the market:
– Flat-plate AGM that fails at year 4. Many “150Ah” 2V cells on global marketplaces (Alibaba, Amazon Business) are repackaged flat-plate AGM with cycle life of 400–600 cycles at 50% DOD. In solar ESS with daily cycling (80% DOD), they die in 12–18 months. OPzV2-150 tubular gel delivers ≥1,500 cycles at 80% DOD — 3–4× longer.
– Flooded OPzS that needs water top-ups every 3–6 months. OPzS is cheaper per cell, but unattended sites (mountain telecom towers, border outposts, island microgrids) cannot be visited monthly for watering. OPzV2-150’s VRLA + gel = zero watering over 20-year life = 40% lower OPEX over TCO.
– Cells that “fit the voltage” but not the standard. Tubular cells must conform to DIN 40472:2015 (for OPzV) or DIN 40736-1:1985 (for OPzS). Generic “2V 150Ah” cells without DIN compliance often have non-standard cell dimensions, mismatched terminal heights, and unclear float-voltage specs — forcing costly battery-rack redesign.
The Choice — When to Pick OPzV2-150 vs OPzV2-150 Alternatives
Scenario
Recommended Cell
Why
Unattended telecom tower / island / border outpost
Example 1 — Telecom base station 48V system, 4-8h backup then generator. Load 1 kW, backup 4 h, bus 48 V, efficiency 0.85, temperature 25°C.
Capacity = 1,000 × 4 ÷ 48 ÷ 0.85 ÷ 1.0 ≈ 98 Ah. Recommend: OPzV2-150 (24 cells in series → 48 V), 53% margin.
Example 2 — Off-grid solar PV 5 kW system, 4 h backup. Load 5 kW, backup 4 h, bus 48 V, efficiency 0.85, temperature 25°C.
Capacity = 5,000 × 4 ÷ 48 ÷ 0.85 ÷ 1.0 ≈ 490 Ah. Recommend: parallel 4 strings of OPzV2-150 (24 cells × 4 strings ≈ 600 Ah @ 48 V), 22% margin.
Example 3 — 110V DC switchgear panel, 10h backup. Load 0.5 kW, backup 10 h, bus 110 V, efficiency 1.0 (DC load), temperature 25°C.
Capacity = 500 × 10 ÷ 110 ÷ 1.0 ÷ 1.0 ≈ 45 Ah. Recommend: OPzV2-150 (54 cells in series → 108 V, compatible with 110 V DC), 230% margin.
Example 4 — 220V industrial DC plant, 30-minute full-load backup. Load 100 kW, backup 0.5 h, bus 220 V, efficiency 1.0, temperature 25°C.
Capacity = 100,000 × 0.5 ÷ 220 ÷ 1.0 ÷ 1.0 ≈ 227 Ah. Recommend: parallel 2 strings of OPzV2-150 (108 cells × 2 strings ≈ 300 Ah @ 216 V, compatible with 220 V), 32% margin.
OPzV2-150 vs AGM 2V 150Ah vs OPzS2-150 — Engineering Comparison
Comparison Item
OPzV2-150 (CHISEN Tubular GEL VRLA)
OPzS2-150 (CHISEN Tubular Flooded)
Generic 2V 150Ah AGM (Flat-plate)
Positive Plate
Tubular (Pb-Ca die-cast)
Tubular (Pb-Sb low-antimony die-cast)
Flat (Pb-Ca)
Electrolyte
Nano-silica gel (immobilized)
Dilute sulfuric acid 1.24 g/cm³ (liquid)
AGM glass mat
Valve-Regulated
Yes (sealed)
No (vented, refillable)
Yes (sealed)
Maintenance
None (lifetime)
Water top-up every 3–6 months
None (lifetime)
Cycle Life (80% DOD)
≥ 1,500 cycles
1,500–2,500 cycles
500–1,000 cycles
Cycle Life (50% DOD)
≥ 2,200 cycles
2,500–4,000 cycles
750–1,500 cycles
Float Design Life (25°C)
20+ years
20–25 years (with maintenance)
8–12 years
Short-Circuit Current
≈ 2,550 A
≈ 2,250 A
≈ 1,500 A
Internal Resistance (20°C)
≈ 0.85 mΩ
≈ 0.78 mΩ
≈ 1.4 mΩ
Max Charge Current
0.30 C10 (≈ 45 A)
0.20 C10 (≈ 30 A)
0.25 C10 (≈ 37.5 A)
Self-Discharge
2%/month
3%/month
3–5%/month
Install Orientation
Upright / side / short-edge (never inverted)
Upright only
Upright / side / short-edge
Acid Spray / Fume
Minimal (sealed)
Higher (vented + filter plug)
Minimal (sealed)
Visual Inspection
Not possible (opaque)
Possible (SAN transparent jar)
Not possible (opaque)
Relative Purchase Cost
Medium (gel premium vs flooded)
Lowest
Lowest (per kWh)
20-Year TCO
Medium (higher purchase + zero maintenance)
Lower (lower purchase + water labor)
Highest (low purchase + 2–3 replacements)
Typical Applications
Telecom / UPS / unattended PV / island / border
Large UPS / railway / ship / manned station
Automotive start / small UPS / e-bike
Standards
IEC 60896 / DIN 40472 / GB/T 19638
IEC 60896 / DIN 40736-1 / GB/T 19638
IEC 60896 (limited)
B2B bottom line: Tubular OPzV2-150 has a 1.5×–2× higher purchase price than AGM but a 20-year TCO 30–40% lower than AGM because of zero maintenance and 3× cycle life.
OPzV Cycle Life vs DOD — Engineering Deep Dive
OPzV2-150 cycle performance scales with depth of discharge. CHISEN engineering data measured per IEC 60896-21 at 25°C with 2.23 V/cell float:
For telecom backup where generator kicks in at hour 4–8 (typical 50% DOD), expect 2,500+ cycles = 7+ years. For daily-cycling solar PV at 80% DOD, expect 1,500+ cycles = 4+ years. This is 3× the cycle life of generic AGM at the same DOD, justifying the 1.5–2× price premium.
Float Voltage Temperature Compensation — Engineering Formula
OPzV2-150 standard float voltage is 2.25–2.27 V/cell at 25°C, with a temperature compensation of -3.3 mV/°C/cell (per IEC 60896-21:2004):
V_float (actual temperature) = 2.27 V + (-3.3 mV/°C) × (actual temperature – 25°C)
Ambient Temperature
Calculation
Compensated Float Voltage
25°C (reference)
2.27 V (no compensation)
2.25–2.27 V
15°C
2.27 + (-3.3 mV × -10)
2.30 V
35°C
2.27 + (-3.3 mV × 10)
2.24 V
45°C
2.27 + (-3.3 mV × 20)
2.20 V
55°C
2.27 + (-3.3 mV × 30)
2.17 V
Float voltage precision requirement: ±1% (±25 mV). Exceeding this range significantly shortens battery life. Float current: < 5 mA/Ah (CHISEN spec) = OPzV2-150 float current < 0.75 A.
Charging Stages & Limits
Stage
Voltage (25°C)
Current Limit
Use Case
Float
2.25–2.27 V/cell
< 5 mA/Ah (≈ 0.75 A)
Backup / float standby
Equalize
2.30–2.35 V/cell
≤ 0.25 C10 A (37.5 A)
Monthly / lag-cell refresh
Cycle
2.35–2.40 V/cell
≤ 0.20 C10 A (30 A)
Solar storage / deep cycle
Recharge (solar)
2.35 V ± 0.005 V/cell
≤ 0.20 C10 A (30 A)
Solar / wind emergency charge
Charge temperature compensation: charge voltage follows float voltage, with -3.3 mV/°C/cell (float / equalize also has independent -5 mV/°C/cell). Charging termination: when charging current drops below 0.5% C10 (0.75 A), the battery is fully charged.
Discharge Termination Voltage vs Discharge Current
Discharge Current I (A)
Termination Voltage Vpc
Application
I < 0.05 C
≥ 1.90 Vpc
Very small current long-duration discharge (backup monitoring)
0.05 C ≤ I < 0.08 C
≥ 1.85 Vpc
Small current float backup
0.08 C ≤ I < 0.2 C
≥ 1.80 Vpc
10HR standard discharge
0.2 C ≤ I < 0.6 C
≥ 1.75 Vpc
5HR medium-current discharge
0.6 C ≤ I < 1.0 C
≥ 1.70 Vpc
1HR high-current discharge
1.0 C ≤ I < 2.0 C
≥ 1.60 Vpc
High-power pulse discharge
Self-Discharge vs Storage Temperature
OPzV2-150 self-discharge is 2%/month at 20°C full charge. Below is capacity retention vs storage time and temperature:
Storage Temp
6 months
12 months
18 months
24 months
10°C
≈ 92%
≈ 85%
≈ 80%
≈ 75%
20°C
≈ 88%
≈ 78%
≈ 70%
≈ 60%
30°C
≈ 70%
≈ 50%
Needs recharge
Needs recharge
40°C
≈ 55%
Needs recharge
Needs recharge
Needs recharge
Storage recommendations: Store at -25°C ~ +45°C in dry, ventilated environment, away from direct sunlight, organic solvents, and corrosive gases. Recharge every 3–6 months (constant voltage 2.27 V/cell for 24 h). Cells stored >12 months require capacity test before redeployment.
The Trust — CHISEN Manufacturing Credentials
– 20+ years tubular-battery specialist. Founded 2002, 8 production bases, 70 million kVAh annual capacity, products exported to 60+ countries (Southeast Asia / Europe / Africa / Middle East / Latin America / Central Asia / Oceania).
– 200+ models full product line. 2V / 6V / 8V / 12V, capacity 4 Ah–3,000 Ah, covering OPzV / OPzS / DZF / DMF / EVF / GFM / LiFePO4 / lithium series.
– 7×24 multilingual technical support. English / Chinese / Spanish / French / Arabic / Russian / Vietnamese. 12 h email response, 24 h full quotation, 48 h complex project layout.
– Quality control. 100% factory pre-shipment inspection (capacity + internal resistance + voltage + visual). SPC (Statistical Process Control) on critical processes (plate pasting / assembly / formation / sealing). SGS / TUV / BV / CTI third-party pre-shipment inspection on request.
– Export documentation. Commercial invoice + packing list + CO (Certificate of Origin) + MSDS + UN2794 transport certificate + full IEC 60896 test report.
– Destination-country certifications supported. SONCAP (Nigeria), PVOC (Kenya), SASO (Saudi Arabia), BIS (India), ESMA (UAE).
– Compliance. RoHS / REACH / WEEE for European market.
OPzV2-150 OEM / ODM Customization
– Container color. Custom Pantone-matched ABS container (standard grey-white plus red/blue/green/yellow/orange and full custom color).
– LOGO silk-screen printing on container (any language, no character limit).
– Laser engraving on cover side (model / serial / production date / customer code / barcode).
– Color box / neutral box packaging. Standard color box + neutral outer carton, customizable LOGO / color / barcode / anti-counterfeit label.
– Label customization. Any language, full layout freedom.
– Terminal options. Φ16-M6 / Φ20-M8 / Φ24-M10 (standard Φ20-M8).
– Terminal seal upgrade. Standard + triple-seal + acid-filter safety valve (OPzS can add acid-resistant exhaust plug).
– Third-party inspection. SGS / TUV / BV pre-shipment + full IEC 60896 test report.
MOQ & lead time: Sample 1 cell / 24V system 12 cells + 12 spares / 48V system 24 cells + 24 spares / 110V system 54 cells / 220V system 108 cells. Bulk 200+ cells, 1–45 days sample / 1–45 days bulk. Customized wholesale pricing tiers.
FAQ — 8 Questions Procurement Teams Ask
Q1: What is the float voltage setting for OPzV2-150?
Standard float voltage 2.25–2.27 V/cell at 25°C, with temperature compensation -3.3 mV/°C/cell (IEC 60896-21). Outside ±1% tolerance shortens life.
Q2: What is the cycle life of OPzV2-150?
≥ 1,500 cycles at 80% DOD (25°C), float design life 20+ years. Tubular positive plate delivers 1.5×–2× longer life than flat-plate AGM.
Q3: What is the operating temperature range?
Discharge -40°C ~ +65°C / charge -30°C ~ +65°C / storage -25°C ~ +45°C (best at 25°C). OPzV gel tolerates higher charge temperature than flooded OPzS.
Q4: What is the self-discharge rate?
2%/month at 20°C full charge. Can be stored 1 year at 20°C without recharge. Recharge to 100% before reuse if stored >12 months.
Q5: What is the difference between OPzV2-150 and OPzS2-150?
OPzV is valve-regulated gel, maintenance-free, installable in any orientation. OPzS is flooded vented, requires water top-up every 3–6 months, must stand upright. OPzV higher short-circuit current (2,550 A vs 2,250 A); OPzS lower internal resistance (0.78 vs 0.85 mΩ); OPzS lower purchase price (mature process).
Q6: Does OPzV2-150 need water refilling?
No. OPzV valve-regulated + gel electrolyte is maintenance-free for the entire service life.
Q7: What national standards does OPzV2-150 comply with?
IEC 60896-21/22:2004 / IEC 61427 / DIN 40472:2015 / GB/T 19638.1-2014 / YD/T 1360 / Eurobat Long Life / BS 6290 Part 4 / UL 1989. 7+ international / regional / industry standards. SONCAP / PVOC / SASO / BIS / ESMA destination certificates available on request.
Q8: What is the MOQ and lead time?
Sample 1 cell; 24V system 12 cells; 48V system 24 cells; 110V system 54 cells; 220V system 108 cells. Bulk 200+ cells, wholesale pricing. Sample 1–45 days, bulk 1–45 days. Email sales@chisen.cn for quotation.
Expert Summary
For industrial buyers evaluating 2V 150Ah cells for telecom backup, UPS, off-grid solar, railway signaling, or substation DC plant, the CHISEN OPzV2-150 2V150Ah delivers the strongest balance of long cycle life (≥1,500 cycles @ 80% DOD), maintenance-free operation, and 20+ year float design life. Tubular positive plate + nano-gel electrolyte (DIN 40472:2015 compliant) provides 1.5×–2× longer cycle life than flat-plate AGM. Seven-plus international certifications (IEC / DIN / GB / YD / Eurobat / BS / UL) cover most procurement specifications without modification. For 48V / 110V / 220V / 380V DC plant, the OPzV2-150 strings seamlessly (24 / 54 / 108 / 190 cells). OEM/ODM customization (Pantone color, LOGO silk-screen, laser engraving, terminal swap) supports brand-building distributors. Free engineering sizing is available within 24 hours via email.
For free engineering sizing, send: system voltage + load power (kW) + backup time (h) + operating temperature. CHISEN engineering team replies within 24 hours with full Excel sizing table + tiered quotation.
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About CHISEN Battery. Founded 2002. Specialist in tubular-plate batteries (OPzV / OPzS) for industrial backup. 8 production bases, 70 million kVAh annual capacity. Products exported to 60+ countries. OEM/ODM one-stop service. ISO 9001 / ISO 14001 / CE / UL / IEC compliant.
Internal links for SEO cluster reinforcement:
– CHISEN OPzV2-150 official product page: https://www.chisen.cn/en/OPzV2-150/2V150Ah.html
– OPzV series overview: https://www.chisen.cn/en/OPzV/series.html
– OPzV battery energy sub-site: https://www.chisenenergy.com/series/opzv-battery/
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