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Black rectangular lithium-ion laptop battery with label showing 15.36V 51Wh

TOPKTEAM

TOPKTEAM L18C4P71 L18L4P71 laptop battery

SKU CH-SHSG-M3BX6

Replacement 51 Wh lithium-ion battery at 15.36 V for Lenovo ThinkPad X1 Carbon 7th Gen

  • Battery typeLithium-Ion
  • 51 Wh capacity delivers extended runtime
  • 36 V lithium-ion chemistry matches original specification
  • Replaces L18C4P71, L18L4P71 and other part numbers
  • Black finish aligns with ThinkPad X1 Carbon aesthetics
  • 12-month warranty covers manufacturing defects

Replacement Battery for ThinkPad X1 Carbon 7th Gen

This 51 Wh lithium-ion pack replaces the original L18C4P71 and L18L4P71 modules used in the Lenovo ThinkPad X1 Carbon 7th generation. It delivers the factory-specified 15.36 V and 3325 mAh in a black housing and carries a 12-month warranty. The unit is brand-new and matches part numbers 02DL004, 02DL005 and 5B10W13930 among others.

Capacity and Runtime

At 51 Wh the battery restores the notebook's original single-charge endurance for typical office workloads such as document editing, web browsing and video playback. Heavy multi-core compilation or sustained GPU compute will drain the pack faster, so users running continuous high-load tasks should expect shorter sessions and keep the AC adapter handy.

Thermals and Power Draw

The lithium-ion chemistry operates at the standard 15.36 V with no active cooling required; heat output stays within the laptop's existing thermal design during normal charging and discharging cycles. Audible noise is absent because there are no moving parts, and power draw from the wall follows the system's own charge controller without adding extra overhead.

How it compares

Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.

Price $41.99
Pricier than about 73% of the 27,790 comparable items (median $30.99).

Specifications

Power
Battery typeLithium-Ion

Questions about this item

Will the 15.36V 51Wh battery work with the original 02DL004 power connector on my ThinkPad X1 Carbon 7th GEN?

The battery replaces part number 02DL004 and matches the 15.36V 51Wh specification, so it connects directly to the existing motherboard header.

How can I confirm the 3325mAh capacity is reporting correctly after installation?

Open Lenovo Vantage or the BIOS power menu; both should display a design capacity near 51 Wh and a full-charge capacity close to 3325 mAh.

Does the package include the 41CP5/41/110 screw kit or must I order it separately?

Only the battery is supplied; mounting screws and any required tools are not included and must be sourced separately.

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