Now you can use your Samsung Galaxy Ace 4 at full capacity again without worrying about the battery life. With a new and improved technology and a capacity of 1900mAh you can enjoy your smartphone and make the most of its cool features. If the battery of your Samsung mobile phone isn\'t what it used to be anymore, replace it with this powerful new Li-Ion battery to use your device for much longer. Features of Li-Ion batteries There is no memory effect, so it is not necessary to fully discharge the device before charging (full discharge is not recommended at all to maintain the longest possible life) Holds up to 1200 charging cycles when properly handled (one charging cycle means the phone charges from 0 to 100%) Specifications Voltage: 3.8 V Power: 1900 mAh Model: EB-BG357BBE Performance Data: Li-Ion Battery Life Cycle : ≥550times Dimensions in mm: 69 x 51 x 4