EC TECHNOLOGY 2 x 1800mAh Li-ion Battery For Motorola Atrix 4G, ME860 MB860, 1 x Multi-purpose USB Travel Type: Li - ion battery; Voltage: 3.7V. Capacity: 1800mAh, more than 500 charge cycles Compatible with Motorola Atrix 4G, ME860/MB860 package:2xbattery&1 x charger Charger: output: 4.2V/600mA, USB output 5V/600mA, multi-purpose, multi-connector.