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Rectangular black laptop battery with label showing model and voltage

PISKEKAT

PISKEKAT L18C4P71 15.36V 51Wh laptop battery

SKU CH-H7VS-0GN15 MPN L18C4P71

Replacement 15.36V 51Wh battery for Lenovo ThinkPad X1 Yoga 4th and 5th Gen and X1 Carbon 7th and 8th Gen

  • Battery TypeLaptop Batteries
  • 51Wh capacity delivers extended runtime
  • 36V output matches original specification
  • CE and FCC certified for safe operation
  • Compatible with ThinkPad X1 Yoga 4th and 5th Gen
  • Compatible with ThinkPad X1 Carbon 7th and 8th Gen

15.36V 51Wh replacement battery

The PISKEKAT L18C4P71 is a new lithium-ion battery built for Lenovo ThinkPad X1 Yoga 4th Gen, X1 Yoga 5th Gen, X1 Carbon 7th Gen and X1 Carbon 8th Gen notebooks. It restores 15.36V and 51Wh capacity to machines that have lost runtime through normal cell aging.

Multi-part-number compatibility

The pack replaces original part numbers including L18C4P71, 02DL006, SB10K97644, 02DL004, L18L4P71, SB10K97642, 02DL005, L18M4P72, SB10K97643 and the 5B10W13930 series. CE and FCC certifications confirm the safety and environmental compliance required for daily mobile use.

Fixed voltage and capacity limits

The battery delivers a fixed 15.36V output and 3325mAh charge, so runtime is determined solely by the notebook’s power draw. It does not support hot-swap operation, and it cannot increase capacity beyond the 51Wh design rating of the original chassis.

Highlights

  • 51Wh capacity delivers extended runtime
  • 36V output matches original specification
  • CE and FCC certified for safe operation
  • Compatible with ThinkPad X1 Yoga 4th and 5th Gen
  • Compatible with ThinkPad X1 Carbon 7th and 8th Gen

Specifications

Battery TypeLaptop Batteries

Questions about this item

What voltage does the L18C4P71 battery supply, and what capacity does that deliver?

The battery provides 15.36V with a 51Wh capacity rated at 3325mAh.

Which ThinkPad models does this battery fit, and how is it secured inside the chassis?

It fits ThinkPad X1 Yoga 4th and 5th Gen and X1 Carbon 7th and 8th Gen; the pack slides into the internal battery bay and is held by the chassis screws.

How do you install the L18C4P71, and which step is often missed?

Power off the laptop, remove the bottom case screws, disconnect the old battery cable, connect the new one, then re-secure the case screws; people often forget to reconnect the cable before closing the chassis.

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