Lenovo 5B11M89999 is an internal lithium-ion battery for a laptop, serving as its power source when the computer is disconnected from external power. Its model name is L22M3P70, and it is intended for installation inside the corresponding device.
The battery uses a 3-cell construction and has a rated energy capacity of 46.5 Wh. Lenovo documentation lists a voltage of 11.31 V and a weight of 188 g. These identifiers and specifications apply to this particular 5B11M89999 version.