ThinkPad Battery (9 Cell) 57++ for T540p, T440p, W541, W540, L540, L440 (0c52864) by Manufactured for Lenovo at Ameraus. Hurry! Limited time offer. Offer valid only while supplies last. The 9-cell 57++ ThinkPad Replacement Battery enables you to stay unplugged for a longer time with its 100Wh battery energy and 9.21Ah battery capacity. This rechargeable battery uses Lithium-ion technology and can be used as a replacement for aging system batteries or as a convenient spare battery. 9-cell system battery Lithium-ion technology Over-discharge protection prolongs the life of the battery Battery Safeguard chip authenticates the battery's use with Lenovo systems9-Cell System
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