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Black rectangular lithium-ion laptop battery with connector edge

Beisite

Beisite L20C4P71 L20D4P71 L20M4P71 laptop battery

SKU CH-8F4Z-PY8WC

Replacement lithium-ion battery for ThinkPad X1 Carbon Gen 9, 56Wh or 57Wh at 15.44V or 15.48V

  • ColorBlack
  • TypeBattery
  • Battery TypeLithium-Ion
  • Replaces multiple Lenovo part numbers including 41CP5/41/108
  • Lithium-ion chemistry delivers 56Wh or 57Wh capacity
  • Voltage options of 15.44V or 15.48V suit compatible systems
  • Direct fit for ThinkPad X1 Carbon Gen 9 2021 models
  • Brand-new black battery shipped as available variant

Compatible replacement for ThinkPad X1 Carbon Gen

This lithium-ion battery replaces part numbers L20C4P71, L20D4P71, L20L4P71, L20M4P71 and the 41CP5/41/108 series. It fits Lenovo ThinkPad X1 Carbon Gen 9 and G9-20XW models from 2021. The pack ships as any one of the listed variants depending on stock. Voltage is either 15.44V or 15.48V with a capacity of 56Wh or 57Wh.

Straightforward swap with voltage awareness

Installation follows the standard bottom-case removal process for this ultrabook; disconnect the old pack and connect the new one. Because the supplier ships either a 15.44V or 15.48V unit, verify the voltage printed on your original battery before fitting. Mismatched voltage can prevent charging or cause the system to reject the pack. No soldering or firmware updates are required.

Capacity and voltage decide fit

The single specification that determines compatibility is the combination of 56Wh or 57Wh capacity at 15.44V or 15.48V. If your original battery shows a different watt-hour rating or voltage, this pack will not work correctly. Buyers who need a higher-capacity option or a different voltage range should look elsewhere. The 12-month warranty covers defects in materials and workmanship.

Highlights

  • Replaces multiple Lenovo part numbers including 41CP5/41/108
  • Lithium-ion chemistry delivers 56Wh or 57Wh capacity
  • Voltage options of 15.44V or 15.48V suit compatible systems
  • Direct fit for ThinkPad X1 Carbon Gen 9 2021 models
  • Brand-new black battery shipped as available variant

Specifications

BrandL20C4P71 L20D4P71 L20M4P71
ModelL20C4P71 L20D4P71 L20M4P71
ColorBlack
TypeBattery
Battery TypeLithium-Ion

Questions about this item

How can I confirm the battery is working correctly after installing it in my ThinkPad X1 Carbon Gen 9?

After fitting the battery, power on the laptop and check the operating system power meter; it should show a full charge capacity close to 56 Wh or 57 Wh and the voltage reading near 15.44 V or 15.48 V.

What comes in the package and is any extra hardware required for installation?

The box contains one battery only; no screws, tools or cables are included, so reuse the existing hardware from your ThinkPad X1 Carbon Gen 9.

The listing mentions several part numbers such as L20C4P71, L20D4P71 and L20M4P71 — which one should I choose?

The supplier states that L20C4P71, L20D4P71, L20L4P71 and L20M4P71 are interchangeable despite voltage differences, so you will receive whichever variant is in stock.

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