Battery Model: 3.6V 4000mAh C Type
Nominal Voltage: 3.6V
Nominal Capacity: 4000mAh
Battery Weight: ~227g
Full-Charged Voltage: 4.5V
Discharge Cut-Off Voltage: 3V
Standard Charge: 0.1C for 16 hours
Standard Discharge: 0.2C discharge to 3V
Fast Charge: 0.5C charge for 2.4 hours
Fast Discharge: 1C discharge to 3V
Internal Resistance: ≤55mΩ
Operating Temperature: Charge: 0℃ ~ 45℃ Discharge: -10℃ ~ 60℃
Storage Temperature: within(12 months) -20℃ ~ 25℃, within(6 months) -20℃ ~ 35℃, within(3 months) -20℃ ~ 45℃
Battery Packaging: PVC
● Ultra-high capacity ● Strong fast-charging capability ● Cost-effective ● No memory effect | ● Ultra-low self-discharge ● Longer cycle life ● High-power discharge ● Environmentally friendly, non-polluting ● Safety and reliability, compliant with various certifications such as ROHS, CE, UL, UN38.3, MSDS, etc. |
Founded in 1998, Grepow specializes in producing eco-friendly, rechargeable Nickel-metal Hydride (NiMH) batteries. With 26 years of experience, our production facility covers 63,000 square meters and employs 1,300 staff, including 80 R&D technicians and 100 quality inspectors. We maintain a daily production capacity of 500,000 units, focusing on NiMH battery solutions. Grepow also offers custom Ni-MH batteries for various environmental requirements, such as low, high, and wide temperature conditions. Besides, high power ones are also available.
▶ As an original manufacturer with robust production capabilities, we ensure short lead times and ample stock availability.
▶ Our self-developed cells guarantee true capacity, eliminating false claims and providing reliable performance.
▶ With a strict quality control system from components to finished products, we ensure the highest standards.
▶ We pride ourselves on responsive customer service, offering swift solutions and support.
▶ Local support is available in China, the U.S., and Germany to assist clients globally.
● Flexibility in supporting customized production of nickel-hydrogen batteries according to customer requirements, including size, capacity, discharge C-rate protection circuit, and wire length.
● Reliable and stable performance.
● Provision of samples and mass production.
● OEM and ODM services.
*The above information may be updated. Please contact our sales representative for the latest product specifications.