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Rectangular lithium polymer laptop battery with cable and connector

NShi

NShi L18C6P90Battery laptop battery 11.25V 90Wh 8000mAh

SKU CH-RQCP-KAC5V MPN L18C6P90Battery

11.25 V lithium-polymer replacement battery with 90 Wh capacity for ThinkPad P53 series laptops

  • Battery TypeLithium Polymer
  • High 90 Wh capacity keeps the ThinkPad P53 running longer
  • 25 V lithium-polymer cell matches the original power specification
  • Replaces part numbers 02DL029 5B10W13902 SB10K97665 L18M6P90 02DL028 5B10W13901 SB10K97664
  • Supplied with instruction manual and tool kit for straightforward installation
  • Manufacturer guidance: charge to 95 %, avoid full discharge to extend service life

Replacement battery for ThinkPad P53

This new lithium-polymer battery replaces part numbers L18C6P90, 02DL029, 5B10W13902, SB10K97665, L18M6P90, 02DL028, 5B10W13901 and SB10K97664. It is built for owners of ThinkPad P53 series notebooks who need a direct swap for the original pack. The package includes the battery, an instruction manual and a tool kit for installation.

Thermals power and noise

As an internal power source the battery produces no audible noise and draws no power from the wall while in use. Normal operating temperature follows the laptop’s own thermal management, and the cell chemistry is rated for 11.25V output. The supplier advises charging only with the original adapter and stopping at 95% to limit heat build-up.

Capacity and compatibility check

The unit is rated at 90Wh and 8000mAh, while the detailed specification lists 87.5Wh and 7800mAh; verify which figure matches your original battery before buying. Connector position, cable length and physical dimensions must match the photographs exactly, because ThinkPad P53 models can ship with different battery variants that are not interchangeable. Buyers who cannot open the case to confirm the exact model should not order this part.

Highlights

  • High 90 Wh capacity keeps the ThinkPad P53 running longer
  • 25 V lithium-polymer cell matches the original power specification
  • Replaces part numbers 02DL029 5B10W13902 SB10K97665 L18M6P90 02DL028 5B10W13901 SB10K97664
  • Supplied with instruction manual and tool kit for straightforward installation
  • Manufacturer guidance: charge to 95 %, avoid full discharge to extend service life

Specifications

Battery TypeLithium Polymer

Questions about this item

How do I install the L18C6P90Battery in my ThinkPad P53 and what step do people often miss?

Open the case, confirm the connector location and cable length match the original battery exactly, then connect the new battery. The step people miss is verifying the physical layout against the product image before fitting it.

What maintenance does the 11.25V 90Wh Li-ion battery need later on?

Perform a full discharge to 5% then a full charge every other month to extend lifespan. Avoid leaving the AC adapter connected continuously while using the battery.

What limit appears first when the 8000mAh pack runs under sustained load?

The manufacturer advises stopping charge at 95% and not discharging below 5%. Exceeding these thresholds repeatedly degrades capacity faster than normal cycling.

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