The Nitecore NL2150i 21700 battery is specifically designed for the Nitecore i Series, including the P10i and P20i flashlights. The cell has a capacity of 5000mAh and a maximum continuous discharge of 8A.

The i Series battery enables a highly efficient output by minimising the loss of power due to internal resistance. It features a dual way output with positive and negative polarities at both ends, plus a high energy density of up to 240mWh/g.

The 21700 battery has a high performance protective circuit in addition to a range of safety features, including: 

• Nickel plated steel straps at both ends of the battery to ensure high impact resistance, good electrical conductivity and oxidation resistance
• Coated with a durable metallic film to guard against abrasion
• Tough plastic circuit board protector

The Nitecore NL2150i 21700 battery can be charged in the following Nitecore chargers: UMS2, UMS4, UI1 and UI2.

We are unable to accept returned batteries once they have been opened, so please ensure they are the correct cell for your device before ordering.

Please note all orders for individual batteries without a device are sent via Royal Mail 48 Tracked, and not Royal Mail 24 Tracked or Special Delivery. Due to shipping restrictions, we are unable to individual batteries to the Outer Hebrides, Scottish Highlands and surrounding areas, Channel Islands and Northern Ireland. Please see our delivery page for further details.