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Rectangular black lithium-ion laptop battery pack with three cells and connector pins

KingSener

KingSener L20L3PF0 45WH 3-Cell laptop battery

SKU CH-028S-282P4 MPN L20L3PF0

Replacement 45 Wh lithium-ion pack with three cells fits Lenovo IdeaPad 3 14-, 15- and 17-inch models and S14, V14, V15, V17, K14 series

  • Battery Capacity4054mAh/45WH
  • 45 Wh capacity delivers extended runtime for compatible Lenovo IdeaPad models
  • 1 V lithium-ion chemistry provides stable power output throughout discharge cycle
  • 3-cell design matches original battery dimensions for direct replacement fit
  • Compatible with multiple Lenovo part numbers including SB11B36276 and 5B11B36283
  • Brand-new condition ensures full design capacity from first charge

Direct replacement for Lenovo IdeaPad 3 series

The KingSener L20L3PF0 is a 45WH lithium-ion battery built to match the original part numbers SB11B36276 and 5B11B36283. It fits IdeaPad 3-14ITL6, 3-15ITL6 and 3-17ITL6 models as well as several V14, V15 and V17 G2 or G3 units. Buyers needing a different voltage or a higher capacity cell count will not find it here.

Sustained runtime from 4054 mAh cells

Rated at 11.1 V and 4054 mAh, the pack delivers its full design capacity without the inflated figures seen on some aftermarket units. The three-cell layout provides stable output during long work sessions rather than a short burst. Users who require all-day operation on a single charge should verify their workload against this capacity.

Simple swap with same-size housing

The replacement shares the exact dimensions of the factory battery, so no case modification or cable rerouting is needed. Alignment pins and the connector orientation match the original layout, reducing the risk of bent pins during installation. Forgetting to cycle the pack two or three times at first use is the most common reason for reduced longevity.

Highlights

  • 45 Wh capacity delivers extended runtime for compatible Lenovo IdeaPad models
  • 1 V lithium-ion chemistry provides stable power output throughout discharge cycle
  • 3-cell design matches original battery dimensions for direct replacement fit
  • Compatible with multiple Lenovo part numbers including SB11B36276 and 5B11B36283
  • Brand-new condition ensures full design capacity from first charge

Specifications

BrandKingSener
ModelL20L3PF0 L20M3PF0 L20C3PF0
Part NumberLong model, 45WH, 3-Cells
L20L3PF0 SB11B36276 5B11B36283
L20M3PF0 SB11B36274 5B11B36279
L20C3PF0 SB11B36277 5B11B36275
Battery Capacity4054mAh/45WH

Questions about this item

How much heat or noise does the 11.1 V 45 Wh battery generate during all-day use?

The battery itself produces no noise and negligible heat; any warmth comes from the laptop's own components under load.

Which original Lenovo part numbers must match for this KingSener L20L3PF0 to work?

It replaces Lenovo part numbers SB11B36276, 5B11B36283, SB11B36274, 5B11B36279, SB11B36277 and 5B11B36275.

Will the 3-cell 4054 mAh pack fit the same chassis as the original battery in my IdeaPad 3-14ITL6?

Yes, it is built to the same physical dimensions as the factory battery for direct installation.

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