Hi-Capacity batteries and AC adapters from Battery-Biz are the highest quality portable power products you can buy! The batteries are made using the highest quality cells available and utilize all of the proper logic boards, thermal protectors, thermistors and circuit breakers to ensure the maximum levels of battery safety, reliability and efficiency.This battery is intended for the following IBM systems:Thinkpad 570, Thinkpad 570E, ThinkPad E530.For a complete compatibility list please refer to the original manufacturer's web site.