
Nitecore 21700 i Series Li-ion Battery 4000mAh NL2140i
- Capacity: 4000mAh
- Voltage: 3.6V
- Continuous Discharge Current: 8A (max)
- Weight: 75.5 g / 2.66 oz.
- Length: 76.7±0.3 mm / 3.02"±0.01"
- Diameter: 21.9±0.3 mm / 0.86"±0.01"

Nitecore 21700 i Series Li-ion Battery 4000mAh NL2140i
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Description
The Nitecore NL2140i 21700 battery is specifically designed for the Nitecore i Series, including the Nitecore P10i and P20i. The cell has a capacity of 4000mAh 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 NL2140i 21700 battery can be charged in the following Nitecore chargers: UMS2, UMS4, UI1 and UI2.
Please note: 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.
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