Mugen Power 3000mAh Battery for HTC P4550 (Tytn II), HTC Kaiser 120, AT&T Tilt & Cingular 8925 100% Brand New High Quality non-OEM Li-Ion Enhanced Capacity Battery. One-Year manufacturer's warranty! Comes with new black battery compartment door for device. Latest Lithium Ion battery technology gives the best performance possible compared to other battery technologies. Amperage: 3000mAh; Voltage: 3.7v