Efest 20700 3100mAh Battery

Product no.: B63-33

Limited stock


Delivery restrictions apply – please see the product description for details


Efest 20700 3100mAh hi-drain battery

Suitable for use with regulated devices such as the Innokin Oceanus or Dicodes Dani 25.


  • Nominal Voltage: 3.7V
  • Rated Capacity: 3100mAh
  • Lowest Discharge Voltage: 2.50V
  • Max charging current: 5C
  • Max. continuous discharge current: 30A
  • Charging temperature rate: 0- 45 Degrees Celsius
  • Operating Discharge Temperature: -20 - 45 Degree Celsius
  • Dimensions: 20.5 x 70.2 mm +/- 0.2mm

Compatible chargers
XTAR VC2 Charger
XTAR MC1 Plus Charger
XTAR VP4 Charger Kit
XTAR VP2 Charger Kit


Attention: These cells have much lower internal resistance than regular LiIon 3.7V cells and they may end up with a higher ending voltage when charged in some chargers. Please check the voltage of them using a volt meter right out of the charger to see if they are above 4.20V when fully charged with your charger. Overcharging above 4.25V may shorten life/cycles. Above 4.50V may even pop them or making them vent. DO NOT use the charger if it seems to overcharge IMR cells. They should never be discharged below 2.5 volts or cycle life/performance will be reduced.


Please read Lithium battery safety information before charging/using lithium batteries.

This product is only offered for sale within the UK due to shipping restrictions.


Additional product information

Safety Information Download

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