The Lenovo 5B10W13920 lithium-ion battery is made for the ThinkPad X280, where it supplies battery power or serves as a replacement unit. The part is identified by MPN 5B10W13920 and OEM reference FRU5B10W13920.
Its 6-cell configuration has a stated energy capacity of 48 Wh, a charge capacity of 4220 mAh and a voltage of 11.46 V. These specifications identify the documented electrical characteristics of this particular battery.
Package contents: 1 battery. It is intended for use with the ThinkPad X280, including when the notebook needs a replacement battery.