BattPit Replacement Li-ion Battery for Lenovo ThinkPad W550s — Compatible with 20E2001BUS / 45N1124 / 121500148 / 45N1127 / 45N1134 / 45N1137, 10.8 Volt 4400mAh (48Wh)

Brand new Li-ion battery made as a direct replacement for Lenovo ThinkPad W550s units that use part numbers 20E2001BUS, 45N1124, 121500148, 45N1127, 45N1134, and 45N1137. 10.8 Volt 4400mAh 48Wh capacity delivers reliable runtime, and the pack is assembled with Grade A Cells for consistent performance. Includes a 1 Year Warranty and is covered by a 30 Day Money Back Guarantee.