Welcome to Update-part Specification: Battery Type: Rechargeable Li-ion Battery Model: RE03XL Voltage: 11.55V Capatity: 45Wh 3750mAh Connector: Please refer to the picture and check it. Certificate: CE,RoHS,FCC,100% New from Manufacturer, Grade A Cell Warranty : 3 Mounth ( 3 Bulan )