The Lenovo 5B11M90078 is a three-cell internal lithium-polymer laptop battery, intended to replace the battery in compatible Lenovo notebooks.
It has a listed charge capacity of 4560 mAh, an energy capacity of 52.8 Wh and an output voltage of 11.58 V. These figures describe its electrical characteristics and cell configuration.
Listed compatible examples are ThinkPad P16 Gen 1 (21D6/21D7), ThinkPad X13 Yoga G3 (21AW/21AX) and ThinkPad Yoga X13 Gen 2 (20W8/20W9), which help identify the intended laptop families.