Premium quality replacement IBM 08K8183 Battery. This 11.1 volt, lithium-ion (Li-ion) IBM 08K8183 Battery is rated at 4400mAH capacity and is 100% compatible with the original equipment. Battery features: Uses the highest quality graded and sorted cells. Provides excellent discharge characteristics. Utilizes state of the art printed circuit board (PCB) design to provide stable and safe performance. Undergone comprehensive quality testing throughout the manufacturing and assembly process. Includes a 12-month free replacement warranty for manufacturer's defects. We provide a premium quality compatible IBM laptop batteries. Our batteries are manufactured by ISO 9001 certified manufacturing plants using state-of-the-art technology. Our batteries are produced in conformance with quality standards and guidelines applicable to OEM battery packs. Each IBM 08K8183 Battery is tested throughout the manufacturing process to match or outperform the original equipments specifications for form, fit and workmanship.