CHISEN BATTERY · HANGZHOU, CHINA
Lead-Acid Battery Manufacturer in China
OPzV tubular gel, OPzS flooded tubular, AGM VRLA and LiFePO4 packs, engineered for telecom, UPS, solar and traction duty. ISO 9001 · ISO 14001 · CE · UL · IEC certified, exporting to 50+ countries.
8 production bases
70 million kVAh per year
50+ export countries
36-month warranty
Four battery families, one factory
Every family below is manufactured in-house, with model-level test reports and a documented charging profile.
OPzV
Tubular gel
2 V 100–3,000 Ah at C10. Immobilised gel, zero maintenance, 18–20 years of float life at 25 °C — the default for remote telecom and solar sites.
OPzS
Flooded tubular
2 V 100–3,000 Ah. Lowest cost per Ah where maintenance access is easy: central offices, railway DC plants and utility substations.
VRLA
AGM blocks
6-EVF, 6-DMF and 6-DZF series, 12 V 12–200 Ah. Sealed and spill-proof, 2–5 year design life for UPS, e-bike, AGV and sightseeing fleets.
LiFePO4
Lithium replacement
Drop-in replacements for lead-acid packs, with the BMS limits and charge-profile differences stated before you commit.
Where the batteries go
- Telecom BTS and hub sites — 48 V strings built from 2 V cells, sized for 4–8 hours of backup in high-ambient climates.
- UPS and data centres — VRLA and tubular batteries with float and equalise setpoints documented per string.
- Solar and off-grid storage — daily-cycle tubular cells sized from your load profile, not from a catalogue headline.
- Forklift, AGV and traction — 6-EVF and 3-EVF blocks, plus a total-cost comparison against lithium.
- E-bike, e-scooter and golf — 6-DZF and 6-DMF blocks for wholesale and private-label programmes.
Why buyers choose CHISEN
8
production bases in Zhejiang
70M
kVAh annual capacity
36
month warranty from B/L
25
day lead time under 500 cells
- ISO 9001, ISO 14001, CE, UL and IEC certified, with model-level test reports on request.
- MOQ from 100 cells per model; OEM and private label from 500 cells.
- FOB Ningbo or Shanghai, 14–18 day sea freight to major ASEAN and South Asian ports.
Latest battery sourcing guides
- 6-EVF-60 12V60Ah UPS Battery: Complete Buyer Guide for Data Centres and Telecom
- 6-EVF-50 12V50Ah UPS Battery: Complete Buyer Guide for Data Centres and Telecom
- 6-DMF-52 12V52Ah UPS Battery: DC Bus String Sizing and Runtime Engineering
- 6-EVF-50 12V50Ah UPS Battery: DC Bus String Sizing and Runtime Engineering
- 6-EVF-60 12V60Ah UPS Battery: DC Bus String Sizing and Runtime Engineering
- OPzV2-2500 2V2500Ah UPS Battery: Complete Buyer Guide for Data Centres and Telecom
Send the model, quantity and port. Get a spec sheet and a price in 24 hours.
Email sales@chisen.cn · WhatsApp +86 131 6622 6999