Stay unplugged longer with the help of a spare ThinkPad system battery. Help increase your productivity by achieving longer system run times than with just the standard system battery. Get the power you need for your ThinkPad notebooks whenever and wherever you need it. (For battery life, go to lenovo.com/alldaycomputing)
Compatible with T/R/W500, T60/61 14S/15W, SL400/500.