BattPit Li-ion Laptop Battery for Lenovo ThinkPad W540 — 10.8V 4400mAh (48Wh) — Fits 20BG0017US / 0C52864 / 45N1147 / 45N1149 / 45N1153 / 45N1159

Brand-new BattPit replacement Li-ion battery for the Lenovo ThinkPad W540. Electrical specs: 10.8 Volt, 4400mAh capacity (48Wh). Constructed with Grade A cells. Compatible part numbers: 20BG0017US, 0C52864, 45N1147, 45N1149, 45N1153, 45N1159. Includes a 1 Year Warranty and a 30 Day Money Back Guarantee.