V7's high-quality replacement notebook batteries are made from the highest-quality cells available & incorporate all of the standard logic boards, thermal protectors, thermistors & circuit breakers to ensure maximum levels of safety, reliability & efficiency. V7's wide selection is compatible with top-line products from all major manufacturers & meets or exceeds original OEM specifications to provide longer-lasting quality & no memory effect. Features Technology Lithium Ion Voltage Provided 11.1 V Capacity 5000m Ah Compatible with: For Thinkpad R/T60 / R60E / T60P OEM Manufacturer Equivalent IBM 40Y6799, IBM 92P1137, IBM 92P1138, IBM 92P1139, IBM 92P1140, IBM 92P1141, IBM 92P1142