Compatible Models: for Lenovo ThinkBook 16 G4+ IAP (Type: 21CY) series; for Lenovo ThinkBook 16 G4+ ARA (Type: 21D1) 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
