What Battery Does a Lenovo ThinkPad X220 Take?
Lenovo ThinkPad X220
Here is the replacement battery this laptop takes.
Battery
Part numbers
42T4861— seen in 33 reports42T4865— seen in 21 reports42T4940— seen in 18 reports45N1023— seen in 14 reports45N1025— seen in 7 reports45N1029— seen in 7 reports42T4942— seen in 5 reports45N1172— seen in 4 reports
These are interchangeable OEM part numbers — any of these fits this slot.
- Manufacturer
- SANYO, LGC, JingYi, <BAD INDEX>, Panasonic
- Capacities observed
- 62.2 Wh, 57.7 Wh, 93.2 Wh, 86.6 Wh
- Voltage
- 11.10 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 124 reports.
Based on 124 independent hardware reports for the Lenovo ThinkPad X220.
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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Check how much RAM it takes →Check its SSD too →
How we know
This answer is derived from 124 independent hardware reports for the Lenovo ThinkPad X220, 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
Battery part numbers derived from linuxhw/DMI, licensed CC-BY-4.0.