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502030 3.7v 250mah lipo rechargeable Lithium Ion Polymer batter
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GEB specializes in the development, production and sales of custom lithium batteries. if you have any questions, please feel free to contact us.

Nominal voltage 3.7V
Minimum capacity 240mAh(0.2C discharge)
Charging voltage 4.2V

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502030 3.7v 250mah lipo rechargeable Lithium Ion Polymer batter

Items Parameter
Battery model GEB502030
Nominal voltage 3.7V
Minimum capacity 240mAh(0.2C discharge)
Charging voltage 4.2V
Discharging cut-off voltage 3.0V
Standard charging 0.2C /4.2V
Max charging 1.0C /4.2V
Standard discharging 1C/3.0V
Max discharging continuous discharge 1C/3.0V
Peak discharge 2C/3.0V
Shipment voltage ≥3.85V
Battery pack impedance ≤140mΩ
Operating temperature Charging:    0°C ~ 45°C
Discharging: -20°C ~60°C
Storage (At 50% SOC and specified temp,

recoverable capacity in % vs time )

-10℃~25℃ (12 months ≥85% )
-10℃ ~45℃ (6 months  ≥85% )
-10℃~55℃ (1 month   ≥90% )
20±5℃ is the recommended storage temperature
Visual Inspection There should not be any remarkable scratches, cracks,

bolts, cauterization, deformations, swelling, leakage

and so on the surface of the cell.

Reference standard GB/T 18287-2013,IEC/EN61960, UL1642



Do not submerge the battery in the water.
Do not mix fresh batteries with used batteries.
Do not mix batteries with metal stuff together.
Do not insert batteries with the (+) and (-) reversed.
Do not use Efest batteries with defective E-cig mods.
Do not disassemble, dispose in fire, heat or short circuit.
Do not put the battery in a charger or equipment with wrong terminals connected.

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  • +86-755-81762726 ext.611


  • 4th Floor, Building 5, Mingkunda Industrial Park, 38 Huachang Road, Dalang Street, Longhua District, Shenzhen 518109, Guangdong Province, PR China

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