Description :This is a high capacity / rechargeable Li-Ion (Lithium Ion) Polymer battery with premium cell.Best replacement for your iphone 4SVoltage: 3.7V; 5.3 WhrCapacity:1430mAh ;Perfect Condition.100% Guaranteed that this is NOT a generic clone!!Compatible with: Apple iPhone 4SPackaged Included:1 x Battery for iphone 4S