Battery Lenovo OEM Part #: 4X50U15736

ThinkPad X280 battery 4X50U15736

Name: ThinkPad X280 battery 4X50U15736
Brand: Lenovo
SKU: 4X50U15736

Internal 6-cell 48Wh battery. Lenovo marketing option number; service FRU not established.

Notice: Lenovo option (marketing) part number, not a service FRU.

Compatible Business Laptop Models (1)

Devices documented to accept this OEM component. Compatibility from OEM documentation, not bench-tested.

Business Laptop

ThinkPad X280

View Model →

Fitment Details:

Internal 6-cell 48Wh battery. Lenovo marketing option number; service FRU not established.. Research draft; verify machine type and original part before ordering. Historical documentation does not establish current availability or all substitutions.

Installation: Not verified

Source: https://static.lenovo.com/we/pdfs/Lenovo%20ESP%20complete%20pricelist%20CHF%2001.04.2021.pdf?1= ↗ (PDF p. 20 (zero-based page 19), row 4X50U15736, Lenovo Options Switzerland April 2021. Catalog line re-checked by Grok Bot 2026-10-22 (pdftotext). Marketing option number, not a service FRU. Do not display prices from this price list.)

Technical Specifications

OEM Brand	Lenovo
Part Number	`4X50U15736`
Component Type	Battery
Capacity	48Wh
Cells	6
Location	internal

OEM Documentation Source

This part specification is recorded from official manufacturer records:

https://static.lenovo.com/we/pdfs/Lenovo%20ESP%20complete%20pricelist%20CHF%2001.04.2021.pdf?1= ↗

Source detail: PDF p. 20 (zero-based page 19), row 4X50U15736, Lenovo Options Switzerland April 2021. Catalog line re-checked by Grok Bot 2026-10-22 (pdftotext). Marketing option number, not a service FRU. Do not display prices from this price list.

Last checked: 2026-10-22

Repair & Bulk Parts Questions

Need a Repair or Bulk Parts Quote?

Repair and bulk parts quotes are not available online yet. Email us with your laptop model and part number.