Bay Valley PartsIBM 9-cells 10.8V 7800mAh New Replacement Laptop Battery for ThinkPad R60 T60 T500 SL400 SL300 Compatible with part numbers LENOVO 40Y6795 40Y6797 40Y6798 40Y6799 41N5666 42T4504 Battery Type: 9-cells 10.8V 7800mAh Color: black Dimension:205.25 x 79.50 x 21.10 mm Weight:446.8g Battery produced by highest quality materials including grade-A brand-new cells 100% New from Manufacturer. Meets and exceeds OEM specifications and lasts longer hours Package Includes: One unit of brand-new replacement laptop battery for ThinkPad R61e 7650 R61e 7657 R61e 8914 R61e 8918 R61e 8919 R61e 8920 R61e 8927 R61e 8928 R61e 8929 CE&RoHS Certificates for safety.