Battery type: Lithium ion ; Battery Condition: Brand New ; Voltage: 15.52V ; Capacity: 72Wh 4640mAh 4-Cell
Replacement Part Number: L21M4P77 SB10W51988 5B10W51887 SB11M89886 5B11M90085 L21C4P74 SB10W51989 5B10W51888 SB11M89887 5B11M90086 L21D4P76 SB10W51990 5B10W51889 SB11M89888 5B11M90087
Compatible Models: for Lenovo ThinkPad Z16 Gen 1 (Type: 21D4 21D5) Series; for Lenovo ThinkPad Z16 Gen 2 (Type: 21JX 21JY) Series
Grade A cells mitigate the risk of battery leakage and maximize output stability. Built-in circuit protection, enhances safety of usage and extends battery life
Note 1: In order to find the right model, please open the back case of your laptop and check the model number of your original battery.When using the new battery, discharge it to 5% (not 0%) and then charge it to 95%. Repeat this cycle 3-4 times