Original Genuine Original Ibm Thinkpad T43 T40 T41 T41 R51 battery TESTED     Original Ibm Thinkpad T43 T40 T41 T41 R51 battery FRU: 92P1087 10.8V -- 4.8Ah GOOD WORKING BATTERY, GUARANTEED TO LAST AT LEAST AN HOUR DEPENDING ON PROGRAMS RUNNING. Comes with 14 days money back guarantee     If for some reason you are not satisfied with received item, e-mail us through eBay message system. Don't leave negative feedback, money back guaranteed! We value your time and business.