- 【Important】This is a button top protected 21700 battery, the whole battery length is 76.4mm, longer than a regular flat top unprotected 21700 cell. It is only made for new generation 21700 flashlights.
- 【USB charge】: Easy to charge with the included a Type-C USB cable; no additional charger or adapter required. Built-in Type-C port in battery, just plug into any Type-c USB port anytime, anywhere. The LED indicator light shows the charging progress clearly: RED = still charging, BLUE = finished charging.
- 【High Performance & Long Runtime】: 5000mAh capacity and 18Wh energy make this battery much stronger to power your flashlights and to keep them running in a long time before a new recharge is needed.
- 【Long Battery Life】: These 3.6V/5000mAh batteries come without the typical Lead Acid memory effects. Constantly charge and discharge these batteries without noticeable reduction of battery life. Rapid, full charge is achieved in about 3 hours with an additional 2-year standby time. Ultra-low self-discharge, durable in use and storage.
- 【Safety & Warranty】: Built-in Integrated safety circuit protects Battery from over discharge/overcharge；RoHS, PSE and CE listed, and have a 30-day money back guarantee as well as a 12-month quality guarantee and lifetime technical support.