LOPURS Eb20 3030mah High Capacity Gold Business Battery with Screwdriver for Motorola Xt910 / Xt912 / Mt917 / Xt885 / Mb886 / Mt887 / Xt889 Battery type: Lithium Ion, Voltage: 3.8V Li-ion Good quality and durable to use It is recommended to fully drain and fully charge the battery especially during the first 3 charging and discharging cycles, doing so may greatly improve the overall life of the battery