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Rechargeable small lithium polymer 3.7v 450mah battery
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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
Nominal Capacity Max.450mAh
Charge Current Max1C

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Rechargeable small lithium polymer 3.7v 450mah battery


Model No.: 403040
Size: Thickness Width Height
4.0mm 30mm 40mm
Nominal Voltage 3.7V
Nominal Capacity Max.450 mAh
Charge Current Max1C
Discharge Continuous Current Max.1C
Burst Current Max.15C
Over output voltage protection 3.0V
Over input voltage protection 4.2V
IC electrical loss 3.0V/3uA
Cycle times 500times
Charging Temperature 0°C to 45°C
Discharging Temperature -20°C to 60°C
Storage Temperature -20°C to 45°C  (within 1month)
-20°C to 40°C(within 3month)
-20°C to 35°C(within 6month)



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

Send your message to us:
  • +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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    Welcome to GeB Battery. I am Sally.