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Black rectangular laptop battery with label showing model L18C4P71

KingSener

KingSener L18C4P71 15.36V 3325mAh laptop battery for ThinkPad X1 Yoga 4th 5th Gen Carbon 7th 8th Gen

SKU CH-PMG2-QNMXV MPN L18C4P71

Replacement lithium-ion battery delivers 15.36V and 3325mAh for ThinkPad X1 Yoga 4th and 5th Gen and X1 Carbon 7th and 8th Gen

  • ColorBlack
  • TypeBattery
  • Compatibility3325mAh/51WH
  • Battery TypeLithium-Ion
  • Battery Voltage15.36V
  • Battery Capacity3325mAh
  • 3325 mAh capacity powers extended work sessions
  • 36 V output matches original Lenovo specifications
  • Lithium-Ion cells deliver reliable recharge cycles
  • Replaces multiple OEM part numbers for broad compatibility
  • Fits X1 Yoga 4th, 5th Gen and X1 Carbon 7th, 8th Gen

Compatible ThinkPad models

This replacement battery fits Lenovo ThinkPad X1 Yoga 4th and 5th generation models as well as X1 Carbon 7th and 8th generation machines. It replaces a wide range of original part numbers including SB10K97644, 02DL006, 02DL004, L18L4P71, SB10K97642, 02DL005, L18M4P72, SB10K97643 and several related FRUs. The black lithium-ion unit is a direct swap for the original pack.

Who this suits and who it does not

It suits owners of the listed ThinkPad X1 Yoga or X1 Carbon models who need a new 15.36 V power source. It will not fit other ThinkPad series, different generations of X1 Yoga or X1 Carbon, or laptops from other brands. Buyers with a different machine should look for a battery that matches their exact model and part number.

Voltage and capacity

The battery delivers 15.36 V with a capacity of 3325 mAh, rated at 51 Wh. This specific voltage and capacity combination determines whether the pack will operate correctly in the compatible models listed above. Always verify that your original battery shows the same voltage and capacity before ordering.

Highlights

  • 3325 mAh capacity powers extended work sessions
  • 36 V output matches original Lenovo specifications
  • Lithium-Ion cells deliver reliable recharge cycles
  • Replaces multiple OEM part numbers for broad compatibility
  • Fits X1 Yoga 4th, 5th Gen and X1 Carbon 7th, 8th Gen

Specifications

BrandKingsener
ModelL18C4P71
Part NumberL18C4P71
ColorBlack
TypeBattery
Compatibility3325mAh/51WH
Battery TypeLithium-Ion
Battery Voltage15.36V
Battery Capacity3325mAh

Questions about this item

Which ThinkPad models does the L18C4P71 battery fit?

The L18C4P71 fits ThinkPad X1 Yoga 4th Gen (2019), X1 Yoga 5th Gen (2020), X1 Carbon 7th Gen (2019) and X1 Carbon 8th Gen (2020).

What screw pattern or latch secures the battery inside the chassis?

The battery is an internal pack held by the chassis screws; remove the bottom cover, disconnect the old pack connector, then secure the new pack with the same screws before reassembly.

How long before the 3325mAh lithium-ion pack needs replacement?

A 3325mAh lithium-ion pack typically lasts 2 to 3 years before runtime drops noticeably, at which point a new battery restores full mobility.

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