Lenovo 5B11J63619 is a rechargeable lithium-ion battery for select Lenovo laptops, intended as a replacement. Its model designation, L22D4PF1, identifies this variant.
The four-cell pack has a rated energy capacity of 65Wh and a stated voltage of 15.52V. These ratings describe its capacity and electrical characteristics for checking whether it matches the intended replacement.
Lenovo also associates this part with assembly reference SB11J63618.