Beisite L21M4P73 L21D4P73 L21M4P74 52.5Wh 15.48V laptop battery

Replacement battery for ThinkPad P16s

This 52.5Wh lithium-ion unit replaces part numbers L21M4P73, L21D4P73 and L21M4P74. It is built for owners of Lenovo ThinkPad P16s and T16 first-generation 2022 models who need a direct swap for the original pack. The black enclosure matches the factory colour and fits the existing battery bay without modification.

Verify the original part number before ordering

Check the label on your current battery for 41CP6/66/56, SB10W51970, SB10W51972, SB10W51974, 5B10W51868, 5B10W51869, 5B10W51870, 5B10W51871, 5B10W51872 or 5B10W51873. Confirm your laptop is a ThinkPad P16s or T16 1st Gen 2022 series; other models are not covered by the compatibility list. The supplier notes that L21D4P73, L21M4P73 and L21M4P74 are interchangeable despite voltage differences and one will be shipped based on stock.

Runs at 15.48V with 52.5Wh capacity

The lithium-ion chemistry delivers the rated voltage and energy for typical mobile workloads. Normal use produces modest warmth that the laptop's existing thermal design handles without extra noise. Power draw follows the system's load profile and the pack requires no additional cooling or power-supply changes.