What battery does the Legion 5 use?

The Legion 5 typically uses an 80Wh 4-cell lithium-ion internal pack, with common part numbers including 5B10W86190, 5B10W86197, and 5B10W86188. Voltage usually falls in the 10.9 to 15.44 V range depending on the exact configuration and year. Because Lenovo released several Legion 5 variants, the correct part number changes between them, so check the label on your current battery or your machine's model number before ordering. Prices across the Legion line run from $62.99 to $85.99.

How do I find the right battery for my Legion model?

Match the FRU (Field Replacement Unit) part number printed on your current battery, such as 5B10W86190 or 5B10Q88557, since that is the most reliable identifier. If you cannot reach the battery, use your exact model name and number from the sticker on the bottom of the laptop. With 18 distinct part numbers covering about 1769 compatible Legion models, two similar machines can take different packs, so confirming the number prevents a mismatch.

How much does a Legion replacement battery cost?

Legion replacement batteries range from $62.99 to $85.99, depending on the sub-series, capacity, and cell count. Higher-capacity 80Wh 4-cell packs for performance models generally sit toward the upper end, while smaller-capacity packs cost less. Since 18 different part numbers cover this line, confirm your exact part number (for example 5B10W86188 or TYPEA15IMH05H) so you order the pack that fits your specific machine and price point.

Are Legion batteries interchangeable?

No, Legion batteries are not universally interchangeable. This category covers 18 distinct part numbers across roughly 1769 models, with voltages from 10.9 to 15.44 V and capacities from about 45 to 80 Wh. A pack built for one Legion 5 variant may not match another Legion 5, and the Legion 7 often uses a higher-capacity pack entirely. Always match your exact FRU number, such as 5B10W86197, rather than assuming one Legion battery fits all.

What differs between the Legion sub-series batteries?

The main difference is capacity and the part number tied to each chassis. The Legion 5 commonly uses an 80Wh 4-cell pack like 5B10W86190, while the Legion 7 flagship typically houses a higher-capacity 4-cell pack with its own part number. Both are internal lithium-ion packs accessed from inside the laptop, but voltage and physical layout vary across the 10.9 to 15.44 V range, so the packs are not cross-compatible between sub-series.

Where do I find the battery part number?

The part number is printed directly on the battery label, listed as a FRU number such as 5B10W86188, TYPEA15IMH05H, or Y7000-1050TI. To see it, power down and open the bottom panel of the laptop. If you would rather not open the case, your exact model name and number on the underside sticker can also be used to identify the correct pack among the 18 part numbers in this category.

Can I replace the Legion battery myself?

Yes, most users can replace a Legion battery themselves, since these are internal packs accessed by removing the bottom panel. You will need a screwdriver to take out the panel screws, then disconnect the battery cable and unscrew the pack. Match your part number first, for example 5B10Q88557, so the replacement seats correctly. Work on a powered-down machine and handle the connector gently. Capacities in this line run from about 45 to 80 Wh.

What are the signs the battery needs replacing?

Common signs include much shorter runtime, the laptop shutting off unexpectedly even with charge remaining, the battery refusing to charge past a low percentage, or your system reporting a worn battery health status. If your Legion no longer holds a useful charge for non-gaming work, a replacement pack in the $62.99 to $85.99 range can restore it. Confirm your part number, such as 5B10W86190, before ordering to ensure the correct fit.