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
Rectangular black lithium-ion laptop battery weighing 400g

KingSener

KingSener L17C4P72 laptop battery 15.36V 80WH 5.235Ah

SKU CH-KYDP-3A3TB MPN L17C4P72

Replacement lithium-ion battery rated 15.36V 80Wh for Lenovo ThinkPad X1 Extreme Gen 1 and 2 and P1 1st and 2nd Gen

  • Battery Voltage15.36V
  • Battery Capacity5.235Ah / 80WH
  • 80 Wh capacity supports longer unplugged sessions
  • 36 V lithium-ion chemistry matches original specifications
  • 235 Ah rating delivers consistent power output
  • 400 g weight keeps the laptop balanced
  • Replaces Lenovo part numbers including 01AY968 and 5B10W13900

Replacement battery for ThinkPad X1 Extreme and P1

This KingSener L17C4P72 lithium-ion battery replaces the original 15.36V 80WH unit in Lenovo ThinkPad X1 Extreme Gen 1 and 2 and ThinkPad P1 1st and 2nd Gen models. It matches the original dimensions and connector layout for direct installation without modification. The 5.235Ah capacity restores factory runtime for mobile workstations. Condition is new with a one-year warranty.

Suits owners of listed ThinkPad models needing

Buyers with other Lenovo series or different X1 Extreme and P1 generations should verify their original battery part number against the compatible list including L17M4P72, L18M4P71, 01AY968 and 01AY969. This unit will not fit laptops that require a different voltage or physical profile. It is not for users who need hot-swap capability or an extended-capacity design beyond 80WH.

15.36V 80WH lithium-ion cell configuration

The 15.36 volt 80 watt-hour rating determines whether this battery matches the power envelope of the original equipment. A different voltage or capacity would prevent proper charging and runtime reporting in the supported ThinkPad models. The 400g weight matches the original specification for balance and chassis fit.

Highlights

  • 80 Wh capacity supports longer unplugged sessions
  • 36 V lithium-ion chemistry matches original specifications
  • 235 Ah rating delivers consistent power output
  • 400 g weight keeps the laptop balanced
  • Replaces Lenovo part numbers including 01AY968 and 5B10W13900

Specifications

BrandKingSener
ModelL17C4P72
Part NumberL17C4P72, L17M4P72, L18M4P71
SB10Q76929, SB10Q76928, SB10S57317
01AY969, 01AY968, 01YU911
5B10W13900, 5B10W13899, 5B10W13953, 5B10V98091
TP00099A, TP00099B
Battery Voltage15.36V
Battery Capacity5.235Ah / 80WH

Questions about this item

How can I confirm the KingSener L17C4P72 is working correctly after installation?

The battery should charge to its full 80WH design capacity and hold a stable 15.36V output during use.

What is included with the KingSener L17C4P72 and what must be purchased separately?

The package contains the 400g lithium-ion battery unit only; no tools, screws or adapters are supplied.

Which part numbers does the KingSener L17C4P72 replace so I can choose the right one?

It replaces L17M4P72, L18M4P71, 01AY968, 01AY969, 01YU911, 5B10W13900, 5B10W13899, 5B10W13953, 5B10V98091, SB10Q76928, SB10Q76929, SB10S57317, TP00099A and TP00099B.

Also in this aisle

People compared these

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