Lenovo Battery ThinkPad T440p 57+ 6 Cell - For Notebook - Battery Rechargeable - 57 Wh - Lithium Ion (Li-Ion) 0C52863

Stay unplugged longer with these genuine Lenovo batteries. These rechargeable batteries use Lithium-Ion technology and can be used as replacement for aging system batteries or as a convenient spare battery.Lithium-ion technology 6 cell system battery Over-discharge protection to prolong the life of the battery Battery energy (Watt-hours): 57Wh Battery Safeguard chip authenticates with Lenovo systems