BattPit Replacement Battery for Lenovo ThinkPad W550s — Compatible with 20E20023US, 45N1124, 121500148, 45N1127, 45N1134, 45N1137 — 10.8V 4400mAh (48Wh) Li-ion

Brand-new Li-ion replacement battery designed for the Lenovo ThinkPad W550s. Compatible with part numbers 20E20023US, 45N1124, 121500148, 45N1127, 45N1134, and 45N1137. Specifications: 10.8 Volt, 4400mAh capacity (48Wh) and built with Grade A cells for dependable performance. Comes with a 1 Year Warranty and a 30 Day Money Back Guarantee.