Type: Li-Polymer-Battery Voltage: 3.8 V Capacity: 2300 mAh Compatible with:Sony Ericsson Xperia Z1 Compact Notice: 1. A new Li-ion battery will achieve its best performance after 2 or 3 complete cycles of charge & discharge. 2. When you install it, be sure the connector has been properly connected to your device. 3. Do not use low quality third-party adapter charger …