The Nitecore NL2155HPi 21700 i-Series Battery delivers exceptional performance with a high capacity of 5500mAh, ensuring a long-lasting, reliable power supply. Its 20A continuous discharge current makes it ideal for high-drain devices, including high-performance flashlights and other demanding electronics.

This rechargeable Li-ion battery features dual-way output with positive and negative polarities at both ends, and a high energy density that minimizes power loss due to internal resistance, resulting in highly efficient performance.

The NL2155HPi offers an economical and environmentally friendly solution, capable of being recharged over 500 times, reducing waste and long-term costs.

Safety is a top priority for Nitecore. The NL2155HPi includes multiple internal safety mechanisms, such as:

• A pressure relief valve that activates in the event of rapid temperature increases.
• A ceramic diaphragm with high-temperature resistance.
• A built-in intelligent protection circuit at the positive polarity to guard against overcharging, over-discharging, and short-circuiting.

Externally, the battery is coated with a durable metallic film to resist abrasion and features a tough plastic circuit board protector for enhanced durability. Both ends are equipped with nickel-plated steel strips, providing high impact resistance, excellent electrical conductivity, and superior oxidation resistance.

The NL2155HPi is compatible with the following Nitecore chargers: UMS4, UMS2, CI4 and CI2.

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

Due to shipping restrictions we are unable to send orders containing only batteries without a device to Northern Ireland and the Channel Islands. Orders that include a device such as a torch and/or charger are unaffected.