BattPit Replacement Battery for Lenovo ThinkPad W550s — Compatible with 20E20019US, 45N1124, 121500148, 45N1127, 45N1134, 45N1137

Brand-new BattPit Li-ion battery pack serving as a direct replacement for Lenovo ThinkPad W550s (fits part numbers 20E20019US / 45N1124 / 121500148 / 45N1127 / 45N1134 / 45N1137). Electrical rating: 10.8 Volt, 4400mAh (48Wh). Built using Grade A cells to provide reliable capacity and stable performance. Includes a 1 Year Warranty and a 30 Day Money Back Guarantee.