Laptop battery for Lenovo. Compatible replacement battery, not an original battery from the manufacturer! Refer to the device and battery numbers listed to select the right battery for your device! Replacement battery suitable for: LENOVO: ThinkPad L440 Series, ThinkPad L540 Series, ThinkPad L560, ThinkPad T440p Series, ThinkPad T540p (dual core), ThinkPad T540p (quadl core), ThinkPad W540 Series, ThinkPad W541 Identical to the following batteries: LENOVO: 0C52863, 45N1144, 45N1145, 45N1148, 45N1149, 45N1150, 45N1151, 45N1158, 45N1159, 45N1160, 45N1161, 57+ (6 cells), 57++ (9 cells) Please note: Opening your device voids the warranty. Installing this battery is especially complex and follows at your own risk. We do not assume any liability for damage and failure with devices and/or batteries. https://elecena.pl/product/19543465/53818-laptop-battery-for-lenovo-li-ion-4400-mah 2021-09-28 https://elecena.pl/product/19543465/53818-laptop-battery-for-lenovo-li-ion-4400-mah 2025-04-08