The Klarus 3.6V Lithium Ion Battery is a quality, reliable, and high performance cell.

It has built in short circuit protection, over charge protection, over discharge protection, over current, an

d over heating protection.

High Capacity Li-ion Battery Keep your high power LED flashlights powered up.

To get the most out of your LED flashlight, the Klarus Button Top 21700 is the best battery available.

This battery contains powerful li-ion chemistry that provides 3.6 Volts of energy and long lasting 5000mAh capacity.

Perfect for those high Lumen Powerful Flashlights / Torch’s now available.

The Klarus 21700 is constructed in a Full Metal Case, Multi-Layered Protection Circuitry, with a button top terminal that makes it compatible with most LED flashlights that run on a 21700 battery.

With the PCB protection circuit and reliable Klarus construction, this battery is safe, easy to use and perfect for powering Klarus and other world class LED flashlights (MaxToch).

The battery is functional in all devices that require 21700 batteries and features built-in short circuit protection as well as a specially designed protective circuit to safeguard the battery if the charge or discharge current ever exceeds 3.5 Amps.