High performance, lightweight replacement battery for IBM Lenovo Thinkpad R60 R60e R61i T60 T60P T61 T61P Z60M Z61E Z61M Z61P R500 T500 W500 Series, Thinkpad R61e (15.4 inch screen) R61i (14.1 15.0 15.4 inch screen) R61 (14.1 15.0 15.4 inch screen) T61 (14.1 15.4 inch screen) T61P (14.1 15.4 inch screen) Series. (Remark: This battery does not compatible with IBM/Lenovo 14.1" 16:9 widescreen laptop.If you want to order the 14.1" Widescreen Laptop batteries, please contact us .). Compatible with IBM/Lenovo part # 40Y6795, 40Y6797, 40Y6799, 41N5666, 92P1128, 92P1130, 92P1132, 92P1138, 92P1140, 92P1127, 92P1129, 92P1131, 92P1133, 92P1137, 92P1139, 92P1141. Our batteries are in high grade quality and certified by CE and RoHS. Any battery you purchase from us is guaranteed: 100% Original Manufacturer Compatible! Guaranteed to Meet or Exceed Original Specifications! Full 1 Year Warranty!