Technize

What Battery Does a Lenovo ThinkPad 25 Take?

Lenovo ThinkPad 25

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

Front battery

Part number

  • 01AV421 — seen in 5 reports
Manufacturer
SMP
Capacity
24 Wh
Voltage
11.46 V
Chemistry
Li-poly

Based on 5 reports.

Rear battery

Part numbers

  • 01AV490 — seen in 3 reports
  • 01AV428 — seen in 1 report
  • 01AV452 — seen in 1 report

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

Manufacturer
LGC, SMP
Capacities observed
23.9 Wh, 71.1 Wh, 24 Wh
Voltage
11.40 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 5 reports.

Based on 5 independent hardware reports for the Lenovo ThinkPad 25.

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.

Disclosure: This post may contain affiliate links. If you purchase through these links, we may earn a small commission at no extra cost to you.

Check how much RAM it takes →Check its SSD too →

How we know

This answer is derived from 5 independent hardware reports for the Lenovo ThinkPad 25, 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

All Lenovomodels →

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