... 4.1 year warrenty 5.FCC/UL/CE. Rechargeable laptop batteries HP 1. Feature:Compatiblebrand:For Sony, DELL,HP, Toshiba, Lenove ... , IBM, Apple, Acer, Asus, Apple/Iphone/IpadModel:For most famous brand modelTyep:Li-ionBattery capatity:2200mAh ... , 4400mAh, 6600mAh, 8800mAh AvailableVoltage:3.7V, 3.75V(Iphone,ipad), 10.8V, 11.1V,14.4V, 14.8V, etcCell ...