Technize

What Battery Does a Lenovo ThinkPad P51s Take?

Lenovo ThinkPad P51s

This laptop uses 2 separate batteries — here is what fits each.

Front battery

Part numbers

  • 00UR891 — seen in 5 reports
  • 01AV493 — seen in 2 reports
  • 00UR892 — seen in 1 report

These are interchangeable OEM part numbers — any of these fits this slot.

Manufacturer
SMP, LGC, SANYO
Capacities observed
32 Wh, 31.9 Wh, 24 Wh
Voltage
15.28 V
Chemistry
Li-poly

This model legitimately shipped with multiple capacities in this slot — match the Wh rating on your existing battery’s label.

Based on 8 reports.

Rear battery

Part numbers

  • 01AV427 — seen in 2 reports
  • 01AV423 — seen in 1 report
  • 01AV424 — seen in 1 report
  • 01AV425 — seen in 1 report
  • 01AV452 — seen in 1 report
  • 01AV492 — seen in 1 report

These are interchangeable OEM part numbers — any of these fits this slot.

Manufacturer
SANYO, LGC, Celxpert, SMP
Capacities observed
71.3 Wh, 71.1 Wh, 47.5 Wh, 24.1 Wh
Voltage
10.80 V
Chemistry
Li-ion

This model legitimately shipped with multiple capacities in this slot — match the Wh rating on your existing battery’s label.

Based on 7 reports.

Based on 8 independent hardware reports for the Lenovo ThinkPad P51s.

Before you order: check the part number printed on the label of your current battery against the numbers above. Vendors frequently ship different battery suppliers — or entirely different capacities — under the very same model name, so the printed part number is the only way to be certain of a fit.

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How we know

This answer is derived from 8 independent hardware reports for the Lenovo ThinkPad P51s, of which 100% agree. We publish a model only when the reports agree overwhelmingly.

Check it yourself

On Windows, open a terminal and run powercfg /batteryreport, then open the generated HTML report — it names the battery’s model and part number. On Linux, run upower -i /org/freedesktop/UPower/devices/battery_BAT0. On any laptop, the surest method is the label printed on the battery itself, visible once you remove the back panel.

More Lenovo laptops

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Battery part numbers derived from linuxhw/DMI, licensed CC-BY-4.0.