Battery Replacement Checker — What Battery Does My Laptop Take?
Find the exact replacement battery part number for your laptop, based on thousands of real hardware reports. Free, brand-neutral, no download.
I don’t know my laptop model
Windows: open a terminal and run powercfg /batteryreport, then open the generated HTML report — it names the battery’s model.
Linux: run upower -i /org/freedesktop/UPower/devices/battery_BAT0 to see the model and manufacturer.
Any laptop: the surest method is the label printed on the battery itself, visible once you remove the back panel.
Battery part numbers derived from linuxhw/DMI, licensed CC-BY-4.0. Covering 1,229 verified models.
Finding the right replacement battery — one number matters
Most laptops that still have a removable battery use one of a small handful of OEM part numbers per model — but the same model name can legitimately ship several different suppliers, or even several different capacities, over its production run. Buy the wrong one and it either doesn’t fit the latch, or it fits but under-delivers on runtime.
This checker answers that question for 1,229 laptop models using thousands of real hardware reports: the part number(s) actually seen in the field, the manufacturer, the capacity in Wh, the voltage, and the chemistry.
Why we show more than one part number
Field reports for the same laptop model frequently show two or three different part numbers in the same battery slot. We show each observed identifier and its report count rather than choosing one arbitrarily. The reports do not explain why the identifiers differ or prove that the parts are interchangeable, so confirm the printed number and physical specifications on your existing battery before ordering.
Why the capacity can vary within one model
Reports for one model and slot can contain several capacities. We show every observed value rather than assuming which one your unit uses or why the reports differ. Match the Wh number, voltage, and part number on your existing battery’s label before ordering.
Check your own machine in thirty seconds
On Windows, open a terminal and run powercfg /batteryreport, then open the HTML report it generates — it names the battery’s manufacturer and model. On Linux, run upower -i /org/freedesktop/UPower/devices/battery_BAT0. The surest method on any laptop is the label printed on the battery itself, visible once you remove the back panel — always confirm the part number there before ordering.
How long do laptop batteries last?
Battery lifespan depends on age, charge cycles, heat, storage, and how the laptop is used. A health report is more useful than guessing from age alone because it lets you compare the battery’s current full-charge capacity with its original design capacity. See our guides to how long laptop batteries last and checking battery health.
What affects laptop battery replacement cost?
Replacement cost varies with the exact part number, whether the battery is OEM or third-party, current availability, and whether the laptop must be opened by a repair technician. We do not estimate a price from Wh or chemistry because those specifications do not reveal supply or labor cost. Find the part number here first, compare like-for-like listings, and read when replacement is actually warranted before buying.