Motorola Droid X, Droid X2, and Atrix 4G 1800 mAh Extended Batteries (BH6X) with Free Compact Charger with USB Port Batteries (BH6X) compatible with Motorola Droid X, Motorola Droid X2, and Motorola Atrix 4G 2 X 1800 mAh high quality Lithium Ion batteries that charges to its full capacity for over 500 cycles Grade A battery with Dual IC protection to ensure safety; Battery Voltage: 3.7 Volts Battery Energy Content: 6.66 Watt Hours Easy to use Compact Charger specifically designed to be perfectly compatible with your BH6X Battery. Charger Input: 100-240V, 50/60 HZ, 150 mA; Output: DC 4.2V, 350mA; USB Output: 5.2V, 800mA