Lithium Ion Battery of 2700 mAh (Minimum)|Typical 2800 mAh</br>Chare Current: Standard 1,350 mA (32 ~ 113°F) Maximum 3,105 mA (32 ~ 113°F) to 4.30 V Maximum 1,890 mA (32 ~ 113°F) to 4.40 V</br>Temperature Range: Storage less than 1 month: -4 ~ 140°F Storage less than 3 months: -4 ~ 113°F</br>Nominal Voltage: 3.85V, End Voltage: 2.70V, Charge Voltage: 4.40V</br></br>Product Description</br></br>Life Doesn't Pause to Recharge. In those unexpected moments, why wait for a charge? With an extra battery, you can replace in a flash whenever you need it. Enjoy the convenience of going to 0% to 100% in second. And with advancd charging cradles with dual functionality, you can charge your extra battery or USB devices.</br><br/>http://www.amazon.com/gp/product/B01DX876HK