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 lithium-ion laptop battery 54Wh 15.36V

Beisite

Beisite L17M4P71 L17C4P71 L17M4P73 54Wh laptop battery

SKU CH-52JZ-XD4EC

54 Wh lithium-ion replacement battery for Lenovo ThinkPad X1 Yoga 2018 and third-generation models

  • ColorBlack
  • TypeBattery
  • Battery TypeLithium-Ion
  • Battery Voltage15.36V
  • Battery Capacity54Wh
  • 54Wh capacity powers extended work sessions
  • 36V lithium-ion chemistry matches original specs
  • Replaces part numbers 01AV474 01AV475 01AV499
  • Fits ThinkPad X1 Yoga 2018 and Gen 3 models
  • Brand new black battery includes 12 month warranty

Replacement Battery for ThinkPad X1 Yoga 2018

This new lithium-ion pack replaces the original power source in Lenovo ThinkPad X1 Yoga 2018 and Generation 3 models. It restores full mobile operation when the factory cell no longer holds a usable charge. The unit ships ready to install and carries a twelve-month warranty. ||

Cross-Reference Part Numbers L17M4P71 L17C4P71

The battery matches Lenovo part numbers 01AV474, 01AV475 and 01AV499 as well as service codes SB10K97623, SB10K97624 and SB10K97638. Verifying the exact code on the old pack confirms compatibility before purchase. This avoids ordering a unit that will not fit the specific chassis variant. ||

15.36V 54Wh Lithium-Ion Capacity Limits

The 15.36-volt 54-watt-hour rating defines the total energy available per charge cycle. Runtime scales with workload, screen brightness and connected peripherals so actual battery life will vary. Lithium-ion chemistry also degrades gradually with age and temperature exposure. Users needing longer unplugged time must consider external power banks or a higher-capacity internal option if the chassis allows it.

Highlights

  • 54Wh capacity powers extended work sessions
  • 36V lithium-ion chemistry matches original specs
  • Replaces part numbers 01AV474 01AV475 01AV499
  • Fits ThinkPad X1 Yoga 2018 and Gen 3 models
  • Brand new black battery includes 12 month warranty

Specifications

BrandL17M4P71 L17C4P71 L17M4P73
ModelL17M4P71 L17C4P71 L17M4P73
ColorBlack
TypeBattery
Battery TypeLithium-Ion
Battery Voltage15.36V
Battery Capacity54Wh

Questions about this item

Does the 54Wh battery fit the ThinkPad X1 Yoga 3rd Gen chassis without modification?

The battery matches the L17M4P71, L17C4P71 and L17M4P73 form factors used in the ThinkPad X1 Yoga 2018 and 3rd Gen series, so it seats in the original compartment.

What is the first installation step after removing the bottom cover?

Disconnect the old pack from the system board before lifting it out; skipping this risks a short on the 15.36V connector.

How often should the lithium-ion pack be recalibrated to keep capacity accurate?

Run a full charge–discharge cycle every 30–40 cycles or when the reported capacity drifts noticeably from the 54Wh rating.

Also in this aisle

People compared these

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