- 【Important】This is a button top protected 18650 battery, the whole battery length is 70mm, longer than a regular flat top unprotected 18650 cell. It is only made for flashlight.
- 【USB charge】: Easy to charge with the included 2-in-1 micro-USB cord; no additional charger or adapter required. Built-in Micro-USB port in battery, just plug into any USB port anytime, anywhere. The LED indicator light shows the charging progress clearly: RED = still charging, BLUE = finished charging.
- 【Premium material】: The positive terminal is made of plated manganese steel with minimal resistance and high conduction for fast heat dissipation; the negative terminal is reinforced with more protection.
- 【Long Battery Life】: These 3.6V/3500mAh 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 2 hours with an additional 2-year standby time. Ultra-low self-discharge, durable in use and storage.
- 【5V charger supported】: You also have the 5V charger charging option when needed. But make sure to use KeepPower branded chargers for best battery performance.
- 【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.