Lenovo Laptop Battery Replacement: Part Numbers for 232 Models

This directory covers 232 Lenovo laptop models in the 2026-07-25 dataset. It shows battery identifiers and specifications observed in independent hardware reports—not a guarantee that a part fits every unit sold under the same model name.

Models covered: 232
Multiple reported slots: 28
Observed capacity range: 20.6–99.5 Wh

Capacity data is available for 232 of 232 models. Values are the full observed range, not a recommended replacement capacity.

Battery manufacturers most often reported: LGC (2,862 reports), SMP (2,532 reports), SANYO (2,261 reports), Celxpert (1,105 reports). These are battery suppliers recorded by the hardware reports, not laptop compatibility recommendations.

Lenovo models reporting the same battery part number

These groups use an exact normalized part-number match. They are useful for finding related reports, but do not establish connector, dimensions, firmware, or physical compatibility.

Observed part number	Models reporting it	Evidence
`45N1127`	ThinkPad A275 ThinkPad T440 ThinkPad T440s ThinkPad T450 ThinkPad T450s ThinkPad T460 +9 more in this directory	15 models; 319 reports
`45N1775`	ThinkPad A275 ThinkPad T440 ThinkPad T440s ThinkPad T450 ThinkPad T450s ThinkPad T460 +9 more in this directory	15 models; 226 reports
`45N1738`	ThinkPad T440 ThinkPad T440s ThinkPad T450 ThinkPad T450s ThinkPad T460 ThinkPad T460p +8 more in this directory	14 models; 60 reports
`45N1735`	ThinkPad T440 ThinkPad T440s ThinkPad T450 ThinkPad T460 ThinkPad T460p ThinkPad T470p +7 more in this directory	13 models; 62 reports
`45N1777`	ThinkPad T440s ThinkPad T450 ThinkPad T450s ThinkPad T460 ThinkPad T460p ThinkPad T470p +6 more in this directory	12 models; 62 reports
`45N1767`	ThinkPad A275 ThinkPad T440 ThinkPad T440s ThinkPad T460p ThinkPad T470p ThinkPad T550 +6 more in this directory	12 models; 61 reports
`45N1045`	B5400 B5400 20278 B580 20144 B590 B590 20206 B590 20208 +6 more in this directory	12 models; 51 reports
`45N1773`	ThinkPad A275 ThinkPad T440 ThinkPad T440s ThinkPad T450 ThinkPad T450s ThinkPad T460 +5 more in this directory	11 models; 339 reports
`45N1049`	B5400 20278 B580 20144 B590 B590 20206 B590 20208 ThinkPad Edge E430 +5 more in this directory	11 models; 129 reports
`45N1736`	ThinkPad T440 ThinkPad T440s ThinkPad T460 ThinkPad T460p ThinkPad T470p ThinkPad T560 +5 more in this directory	11 models; 31 reports

All Lenovo models in this battery directory

Browse 232 models

Lenovo laptop battery replacement questions

Which battery part number does my Lenovo laptop use?

Select the exact model above to see the part numbers observed in hardware reports. Then compare the result with the printed label on your installed battery and the manufacturer’s documentation.

Does the same part number mean two laptops are compatible?

No. An exact match is useful evidence, but the connector, dimensions, mounting points, voltage, firmware, and exact laptop variant still need to agree before purchase.

How can I tell whether the battery needs replacing?

Check current full-charge capacity against design capacity and investigate charging faults before buying. Read our guides to battery health, replacement signs, and charging problems.

Where do these Lenovo battery records come from?

They come from the versioned linuxhw/DMI hardware-report corpus. Read the data methodology or use the battery checker.

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