The Xtar 18650 4000mAh Li-ion battery is the ideal choice for anyone looking for a reliable and long-lasting power source for their devices. With a nominal capacity of 4000mAh, this battery offers impressive performance that supports even the most demanding applications. Thanks to its integrated protection electronics, it is protected against overcharging, deep discharging and short circuits, which not only maximises safety but also the battery's service life. With a maximum continuous discharge capacity of 10A, the battery is perfect for high-performance devices such as torches or e-cigarettes. The service life of over 600 charging cycles ensures that you can enjoy this product for a long time. The robust button-top design facilitates compatibility with a wide range of devices. The battery remains reliable even under extreme conditions, as it is designed for temperatures from -20 to 60°C. Its low self-discharge and optimised transport voltage of 3.6-3.9V make it ideal for storage. Weighing just 50g, it is light yet powerful. This rechargeable battery features state-of-the-art technology and ensures a stable and constant power supply, even in demanding applications.