Extended Li-iON Battery with Cover for T-Mobile HTC G2 , Desire Z A7272 Android Smartphones ( 2600mAh ) **Includes Micro USB Charging Cable + 3 year warranty** Technical specifications: 2600mAh , 3.7 VCD Replaces original BAS450 T-Mobile G2 smartphone battery for double run-time Includes a custom-fit battery door to accommodate the larger size of the battery Maintains performance for up to 1,000 charging cycles Comes with 3 year manufacturer's warranty