The Nitecore NL1840 18650 battery is a rechargeable, Li-ion cell and the first to have a 4000mAh capacity.

The 18650 battery ensures your safety and peace of mind with a range of safety features. The internal safety features include a pressure relief valve with activates in the event of rapid temperature increase and a built-in protective circuit of the positive polarity which protects against overcharge, over discharge and short-circuiting. Externally, the battery has nickel plated stainless steel protectors at both ends, a tough plastic circuit board protector and a durable metallic film to prevent abrasion.

The NL1840 battery has a voltage of 3.6V and 114.4Wh.

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. These batteries have a built-in protection and as such, are longer than 65mm - please check the tech spec for dimensions.

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 send individual batteries to the Outer Hebrides, Scottish Highlands and surrounding areas, Channel Islands and Northern Ireland. Please see our delivery page for further details.