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Black rectangular lithium-ion laptop battery, 11.1V 45Wh

Beisite

Beisite L17C3P53 L17L3P53 L17M3P55 laptop battery 11.1V 45Wh

SKU CH-KAG2-7VYE7

Replaces multiple part numbers for Lenovo ThinkPad Yoga L380 and S2 Yoga models with 11.1V 45Wh lithium-ion power

  • Battery typeLithium-Ion
  • Battery voltage rating11.1 V
  • Battery capacity45 Wh
  • Product colorBlack
  • Product typeBattery
  • Compatible withFor ThinkPad S2 Yoga L380 L390 Series
  • New lithium-ion battery restores 45 Wh capacity
  • 1 V output matches original Lenovo specifications
  • Replaces nine OEM part numbers including 01AV482
  • Fits ThinkPad Yoga L380 and S2 Yoga 2018 models
  • Brand-new condition with 12-month warranty coverage

Replacement battery for ThinkPad S2 Yoga L380 L390

This 11.1V 45Wh lithium-ion unit replaces part numbers L17C3P53, L17L3P53 and L17M3P55 across the ThinkPad S2 Yoga 2018 and L380 series. It is built for owners of those specific models who need a direct swap for the original pack. Buyers with other ThinkPad lines or non-Lenovo ultraportables should look elsewhere because the connector and cell layout will not match.

Straightforward internal swap with common pitfalls

Installation requires removing the bottom case screws and disconnecting the old pack from the motherboard header; the new battery drops into the same bay and uses the identical plug. The main issues are forgetting to disable the internal battery in BIOS before opening the chassis and stripping the small case screws if the wrong driver bit is used.

45Wh capacity for typical mobile workloads

The 45Wh rating delivers several hours of office browsing or video playback on the supported Yoga L380 and S2 Yoga systems. Heavy multi-tasking, high screen brightness or sustained CPU loads will drain the pack more quickly, so users who regularly work away from power for a full day may need to carry a charger or a second battery.

How it compares

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

Price $38.99
Pricier than about 70% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameL17C3P53 L17L3P53 L17M3P55
Model nameL17C3P53 L17L3P53 L17M3P55
Part number31CP6/55/90
Product colorBlack
Product typeBattery
Power
Battery typeLithium-Ion
Battery voltage rating11.1 V
Battery capacity45 Wh
Compatibility
Compatible withFor ThinkPad S2 Yoga L380 L390 Series

Questions about this item

How do I verify the 11.1V 45Wh battery is working correctly after installation?

Power on the ThinkPad Yoga L380 or S2 Yoga 2018 and confirm the OS reports 11.1V and 45Wh capacity with no charging errors.

What is included in the package and what must I source separately?

The box contains 1x battery only; no tools, screws or AC adapter are supplied.

Which of the L17C3P53, L17L3P53 or L17M3P55 versions should I select for my ThinkPad Yoga L380-20M7001BGE?

All three part numbers are interchangeable for the listed models; the seller ships whichever variant is in stock.

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