Bay Valley Parts LENOVO 0A36278 42T4781 42T4785 42T4787 42T4829 High Capacity Battery for LENOVO ThinkPad X100e X100e 2876 X 100e 3506 X 100e 3507 X 120e[Li-ion 6-cells 10.8V 5200mAh] Battery Type: 6 Cells Li-ion Capacity: 10.8V 5200mAh Color: Black Weight: 13oz Using highest quality materials including grade-A brand-new cells Meets and exceeds OEM specifications and lasts longer hours Package Includes: One unit of brand-new replacement laptop battery for LENOVO This product is CE & RoHS certified, so BUY WITH CONFIDENCE!!!