The Lenovo 5B10W13894 is an internal lithium-ion replacement battery for select compatible Lenovo laptops. It supplies power when the laptop is away from an external power source, making it suitable for replacing an installed battery when needed.
Its three-cell pack has an energy rating of 45 Wh and a specified voltage of 11.1 V. These figures help distinguish it from batteries with different cell counts or electrical ratings.
Lenovo identifies it as model L17L3P52, ASM SB10T83137. The listed weight is 235 g; these identifiers can help confirm the part alongside MPN 5B10W13894.