We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black rectangular laptop battery for ThinkPad X1 Carbon Gen 9 2021

GOLDIX

GOLDIX L20C4P71 L20D4P71 L20M4P71 L20L4P71 laptop battery 57Wh 15.44V ThinkPad X1 Carbon Gen 9 2021

SKU CH-HAZE-3HA7B

57Wh lithium-ion battery for ThinkPad X1 Carbon Gen 9 2021, 15.44V or 15.48V compatible

  • ColorBlack
  • TypeBattery
  • CompatibilityFor ThinkPad X1 Carbon Gen 9 2021
  • Battery TypeLithium-Ion
  • Battery Voltage15.44V / 15.48V (Compatible with each other)
  • Battery Capacity57Wh/56Wh
  • 57 Wh capacity powers the ThinkPad X1 Carbon Gen 9 2021 through a full workday
  • 44 V lithium-ion chemistry matches the original voltage specification exactly
  • Replaces four OEM part numbers including 5B10W13974 for guaranteed fit
  • Brand-new cell pack ships as L20C4P71, L20D4P71, L20M4P71 or L20L4P71 depending on stock
  • Black finish aligns with the laptop chassis for a uniform look

Compatible replacement battery

This 57Wh lithium-ion unit replaces the original battery in the ThinkPad X1 Carbon Gen 9 2021. It matches part numbers 5B10W13974, 5B10W13975, 5B10W13972 and 5B10W13973 so owners can restore full mobile runtime without soldering or adapter cables. The black finish matches the chassis.

Multi-voltage design and fit

The cell group operates at either 15.44V or 15.48V and the supplier ships whichever variant is in stock because both are electrically interchangeable. The pack slides into the existing battery bay and uses the factory connector, so installation only requires a screwdriver and the standard service steps.

Capacity limit for intensive workloads

At 56Wh to 57Wh the pack supplies the same energy budget as the original cell, meaning heavy workloads such as sustained compiles or video export will still drain the charge in a few hours. Buyers who need all-day operation away from mains power should consider a higher-capacity alternative if one exists for this chassis.

Highlights

  • 57 Wh capacity powers the ThinkPad X1 Carbon Gen 9 2021 through a full workday
  • 44 V lithium-ion chemistry matches the original voltage specification exactly
  • Replaces four OEM part numbers including 5B10W13974 for guaranteed fit
  • Brand-new cell pack ships as L20C4P71, L20D4P71, L20M4P71 or L20L4P71 depending on stock
  • Black finish aligns with the laptop chassis for a uniform look

Specifications

BrandL20C4P71 L20D4P71 L20M4P71 L20L4P71
ModelL20C4P71 L20D4P71 L20M4P71 L20L4P71
Part Number5B10W13974
ColorBlack
TypeBattery
CompatibilityFor ThinkPad X1 Carbon Gen 9 2021
Battery TypeLithium-Ion
Battery Voltage15.44V / 15.48V (Compatible with each other)
Battery Capacity57Wh/56Wh

Questions about this item

What voltage does the 57Wh battery deliver and which part numbers share that rating?

The battery is rated at 15.44 V or 15.48 V; both voltages are interchangeable across part numbers L20C4P71, L20D4P71, L20M4P71 and L20L4P71.

What screw pattern and clearance does the pack need inside the ThinkPad X1 Carbon Gen 9 chassis?

It uses the factory screw holes and battery bay dimensions of the X1 Carbon Gen 9; no extra brackets or adapters are required.

Which connector must be detached first when swapping the old pack for this replacement?

Disconnect the internal battery cable from the motherboard before removing the securing screws; reversing that order can short the board.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.