Battery-Biz is a leading manufacturer and distributor of batteries, adapters and chargers and the industry"s source for Hi-Capacity(TM) brand power products. Hi-Capacity(TM) products are made using the finest components available and carry a one year warranty against defects in material and workmanship. Hi-Capacity(TM) products are guaranteed to meet or exceed original specifications. Fits DEC PARTS IBM, THINKPAD 600, THINKPAD 600 SERIES, THINKPAD 600A, THINKPAD 600E, THINKPAD 600X