Capacity 3900mAh Extended Slim Battery for at&T/Net10 Samsung Galaxy Mega 2 SM-G750A Smartphone * Authorized AceSoft Dealer * Battery type: Li-ion; Voltage: 3.8V; Capacity: 3900mAh * Package includes : New 3900mAh Rechargeable Li_ion Battery X 1. * Compatible with: Samsung Galaxy Mega 2 SM-G750A( AT&T/Net10 ) * Accessory only, cell phone not included.