NL2153 Li-ion Rechargeable Battery High-Powered 21700 Battery Your high-drain devices demand a lot of power - keep them running smoothly with Nitecore's NL2153 rechargeable battery. This cell has a whopping 5300mAh capacity, allowing it to power your 21700-compatible devices for long runtimes. Particularly, the NL2153 is designed to discharge 8A of current, making it a perfect fit for high-drain devices like flashlights and more. Built to Last The NL2153 features internal and external safety protections, giving you a cell that can operate for over 500 charge cycles. The internal circuitry protects from overcharge, overdischarge, and short-circuiting. An added pressure release valve will automatically activate to protect your battery if over-temperature is detected. To round it all off, the NL2153 is made with a li-ion chemistry, that is safe to use and store and free of mercury, lead, and cadmium.