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Black rectangular lithium-ion laptop battery, 50Wh

GOLDIX

GOLDIX L18L3P72 L18M3P72 L18S3P72 50Wh laptop battery for Lenovo ThinkPad X390 Yoga 07CD Series

SKU CH-5RJ8-0PV3X

50 Wh lithium-ion replacement battery for Lenovo ThinkPad X390 Yoga 07CD series

  • ColorBlack
  • TypeBattery
  • Compatibilityfor ThinkPad X390 Yoga 07CD Series
  • Battery TypeLithium-Ion
  • Battery Capacity50Wh
  • 50Wh capacity powers extended work sessions away from the mains
  • 52V / 11.55V lithium-ion chemistry matches original ThinkPad X390 Yoga specifications
  • Replaces twelve OEM part numbers including L18L3P72 and 31CP5/79/73 for drop-in fit
  • Supports X390 Yoga 07CD, 08CD and 20NNA series models without modification
  • 12-month warranty covers the new battery against early failure

What this battery replaces

This is a new lithium-ion replacement battery rated at 50 Wh with a nominal voltage of 11.52 V or 11.55 V. It is built to fit the Lenovo ThinkPad X390 Yoga 07CD series and the related 05CD, 06CD and 08CD variants listed in the compatibility data.

Who should buy this and who should not

Owners of any ThinkPad X390 Yoga model shown in the fit list can use this part to restore original runtime. Buyers with other ThinkPad series or non-Lenovo laptops will need a different battery because the connector and chassis profile are specific to the X390 Yoga line.

The specification that decides fit

The decisive figure is the 50 Wh capacity combined with the 11.52 V or 11.55 V rating; only systems designed for that exact energy and voltage specification will recognise and charge the pack correctly.

Highlights

  • 50Wh capacity powers extended work sessions away from the mains
  • 52V / 11.55V lithium-ion chemistry matches original ThinkPad X390 Yoga specifications
  • Replaces twelve OEM part numbers including L18L3P72 and 31CP5/79/73 for drop-in fit
  • Supports X390 Yoga 07CD, 08CD and 20NNA series models without modification
  • 12-month warranty covers the new battery against early failure

Specifications

BrandL18L3P72 L18M3P72 L18S3P72
ModelL18L3P72 L18M3P72 L18S3P72
Part Number31CP5/79/73
ColorBlack
TypeBattery
Compatibilityfor ThinkPad X390 Yoga 07CD Series
Battery TypeLithium-Ion
Battery Capacity50Wh

Questions about this item

Does the 50Wh 11.52V black lithium-ion pack fit the ThinkPad X390 Yoga 07CD chassis without modification?

The battery replaces part numbers L18L3P72, L18M3P72, L18S3P72, 31CP5/79/73, 02DL021, 02DL022, 5B10W13927, 5B10W13928, SB10K97659, SB10K97660, SB10T83170 and SB10T83171, matching the X390 Yoga 07CD form factor.

What is the correct sequence to install the 50Wh replacement battery in the X390 Yoga 07CD, and which step is most often missed?

Power off the laptop, disconnect the AC adapter, remove the base screws, detach the old pack connector, fit the new 11.55V unit, reconnect the cable, refit the base and screws, then charge fully before first use; the missed step is the initial full charge.

When should the 50Wh lithium-ion battery be replaced in the ThinkPad X390 Yoga 07CD?

Replace the pack when run-time falls sharply, the OS reports a significant capacity loss, or the battery no longer holds a charge through a typical work session.

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