Li-ion Battery for HTC Desire HD 3.7V Voltage 1,200mAh Battery Pack with 3.7V Voltage 1200mah Li-ion Battery for HTC Desire HD 3.7V Voltage 1,200mAh Battery Pack with 3.7V Voltage 1200mah Double IC PCB and PTC More effective protection for over-current, overload, over-charging and short-circuit inside With stable performance safe Voltage: 3.7V Current: 1,200mAh Suitable for HTC mobile phones