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Rectangular black lithium-ion laptop battery with connector strip

KingSener

KingSener L16C4PB2 laptop battery 15.2V 3646mAh 55WH

SKU CH-0S1E-WBZEK MPN L16C4PB2

15.2 V 55 Wh Li-ion replacement battery fits Lenovo IdeaPad 720S-14IKB and V720-14 series

  • Battery Voltage15.2V
  • Battery Capacity3646mAh/55WH
  • 55 Wh capacity extends unplugged runtime
  • 2 V output matches original Lenovo specification
  • 3646 mAh Li-ion cells deliver stable power cycles
  • Direct replacement for part numbers 5B10M55950 5B10M55951 5B10M55952
  • 100 % new condition with one-year supplier warranty

Replacement for Lenovo IdeaPad 720S-14IKB

The KingSener L16C4PB2 is a new lithium-ion laptop battery built to match the original part for Lenovo IdeaPad 720S-14IKB, V720-14 and K42-80 series notebooks. It delivers 15.2V and 3646mAh for 55WH of rated energy. The black pack uses high-quality cells and a PCB designed to meet the original design capacity without shortfall.

Upgrade from a worn or swollen original

This battery replaces Lenovo part numbers 5B10M55950, 5B10M55951 and 5B10M55952 as well as models L16M4PB2 and L16L4PB2. The jump is worth it when the original pack no longer holds charge, shows physical swelling or forces the notebook to stay tethered to the adapter. Same dimensions ensure a direct fit without case modification.

55WH capacity for daily mobile work

At 55WH the pack comfortably powers typical office tasks, web browsing and video playback for a full work session away from the mains. It runs out under sustained heavy loads such as rendering or gaming that draw peak current for extended periods. The supplier recommends a few full charge and discharge cycles at low current to settle the cells, then storing above 80% if unused for a month.

Highlights

  • 55 Wh capacity extends unplugged runtime
  • 2 V output matches original Lenovo specification
  • 3646 mAh Li-ion cells deliver stable power cycles
  • Direct replacement for part numbers 5B10M55950 5B10M55951 5B10M55952
  • 100 % new condition with one-year supplier warranty

Specifications

BrandKingSener
ModelL16C4PB2
Part NumberL16C4PB2 L16M4PB2 L16L4PB2
5B10M55951 5B10M55950 5B10M55952
Battery Voltage15.2V
Battery Capacity3646mAh/55WH

Questions about this item

Will the KingSener L16C4PB2 fit my Lenovo IdeaPad 720S-14IKB without modification?

Yes, it matches the original battery dimensions for the IdeaPad 720S-14IKB, V720-14 and K42-80 series so it seats in the same bay without adapters.

What is the common installation mistake when swapping the L16C4PB2 in these IdeaPad models?

Forgetting to disconnect the internal connector before removing the old pack can short the motherboard; always unplug the battery cable first.

When should I plan to replace this 55 Wh Li-ion battery?

Replace it once run-time falls well short of the rated 55 Wh or the pack no longer holds an 80 % charge after a month in storage.

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