This Sale Is For One Fully Tested Not Fake nor Aftermarket GENUINE 57 + ~ 6 CELL Lenovo ThinkPad L440 * L540 * T440p * T540p * W540 Series Battery FRU PN :45N1149 ASM P/N :45N1148 10. 8 V ~~~ 5.2 Ah {57Wh} This battery is a Genuine Lenovo {not Fake nor Aftermarket} removed from a Damaged Machine that is being parted out and was placed on the external charger and it was still fully charged to 100%. The serial number will be recorded and sent with the tracking information before shipping. In the event of any DOA/Defective Battery (please do not keep it for 30 days return) please contact me within 48 hours after date of receipt and return it within 5 business days for replacement of refund no exceptions. Item will be shipped the next business day after payment is received If for any reason you are not satisfied, please contact me first through "Message " or Contact Seller on the Transaction Drop Down Box" to resolve any issue before opening a Return Item Case or leaving Negative or Neutral Feedback. Customer satisfaction is very important to me Track Page Views With Auctiva's FREE Counter