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Rectangular black 4-cell lithium-ion laptop battery pack

Total Micro Technologies

Total Micro Technologies 4-Cell 52.5WHr 15.44V Battery 5B10W51870-TM

SKU CH-KA7S-KF50P

A four-cell lithium-ion battery rated at 52.5 Wh and 15.44 V for compatible Lenovo ThinkPad P16s and T16 models

  • Type4 Cell Lithium-Ion
  • 4-cell lithium-ion design delivers reliable mobile power
  • 5 WHr capacity supports extended work sessions
  • 44 V output matches original Lenovo specifications
  • Compatible with ThinkPad P16s Gen 1, P16s Gen 2, T16 Gen 1, T16 Gen 2
  • Replaces OEM part numbers 5B10W51868, 5B10W51869, 5B10W51906, 5B11M90034, 5B11M90035, 5B11M90036, L21M4P73

Compatible Lenovo ThinkPad Models

This replacement battery fits Lenovo ThinkPad P16s Gen 1, P16s Gen 2, T16 Gen 1 and T16 Gen 2 laptops. It is a 4-cell lithium-ion unit rated at 52.5WHr and 15.44V. The part meets or exceeds original equipment specifications for these machines.

Ideal for Direct Replacement

Owners of the listed ThinkPad models needing a new power source will find this battery matches the original form factor and voltage. Users with different Lenovo series or other laptop brands should look elsewhere as the connector and dimensions are model-specific.

Fits Inside Existing Chassis

The battery installs directly into the laptop's internal battery bay without requiring case modifications or additional cables. It restores mobile operation time and frees the user from staying tethered to an AC adapter during daily work.

Highlights

  • 4-cell lithium-ion design delivers reliable mobile power
  • 5 WHr capacity supports extended work sessions
  • 44 V output matches original Lenovo specifications
  • Compatible with ThinkPad P16s Gen 1, P16s Gen 2, T16 Gen 1, T16 Gen 2
  • Replaces OEM part numbers 5B10W51868, 5B10W51869, 5B10W51906, 5B11M90034, 5B11M90035, 5B11M90036, L21M4P73

Specifications

BrandTotal Micro
Type4 Cell Lithium-Ion

Questions about this item

Which Lenovo models does this 52.5WHr 15.44V battery fit?

It fits the ThinkPad P16s Gen 1, P16s Gen 2, T16 Gen 1 and T16 Gen 2.

Will this 4-Cell Lithium-Ion battery work in a ThinkPad that currently uses a 5B10W51868 or 5B10W51869 pack?

Yes, it replaces part numbers 5B10W51868, 5B10W51869, 5B10W51906, 5B11M90034, 5B11M90035, 5B11M90036 and L21M4P73.

How can I confirm the 52.5WHr battery is charging correctly after installation?

The Lenovo power manager should show the design capacity near 52.5WHr and report a healthy charge cycle count.

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