Detailed Product Description IBM ThinkPad T60 Series Laptop Battery. This is a 10.8V, 5200mAh, Li-ion Battery,Brand new,100% OEM compatible. CE & RoHS certification.IBM:, 40Y6797 , 40Y6799 , 41N5666 , , ASM 92P1132 , ASM 92P1138 , ASM 92P1140 , FRU 92P1129 , FRU 92P1131 , FRU 92P1133 , FRU 92P1137 , FRU 92P1139 , FRU 92P1141.