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Rectangular black lithium-ion laptop battery, 15.36V 45Wh

Beisite

Beisite L18C4PF0 L18D4PF0 L18M4PF0 laptop battery 15.36V 45Wh

SKU CH-SP9T-BMQSZ

A 15.36 V, 45 Wh lithium-ion replacement battery for Lenovo ThinkBook 13s and 14s series laptops

  • ColorBlack
  • TypeBattery
  • CompatibilityFor ThinkBook 13s 13s-IML 13s-IWL 14s 14s-IWL Series
  • Battery TypeLithium-Ion
  • Battery Voltage15.36V
  • Battery Capacity45Wh
  • Replaces multiple Lenovo part numbers for easy sourcing
  • 45 Wh lithium-ion cell restores original runtime
  • 36 V output matches factory specification
  • Compatible with ThinkBook 13s and 14s series
  • Ships as L18C4PF0, L18D4PF0 or L18M4PF0 per stock

Direct replacement for ThinkBook 13s and 14s

This 15.36V 45Wh lithium-ion battery replaces part numbers L18C4PF0, L18D4PF0 and L18M4PF0 across the ThinkBook 13s, 13s-IML, 13s-IWL, 14s and 14s-IWL series. It restores original run time without requiring any firmware changes or hardware modifications.

Fits inside the existing battery bay

The pack uses the same connector and mounting points as the factory unit, so it slides into the chassis without adapters or cable rerouting. No external charger or additional power brick is needed; the laptop’s own charging circuit manages the cell.

Ships as any one of three compatible part numbers

The supplier notes that L18C4PF0, L18D4PF0 and L18M4PF0 are interchangeable despite voltage differences, so the exact variant delivered depends on stock. All carry the same 45Wh capacity and 15.36V rating for consistent performance.

Highlights

  • Replaces multiple Lenovo part numbers for easy sourcing
  • 45 Wh lithium-ion cell restores original runtime
  • 36 V output matches factory specification
  • Compatible with ThinkBook 13s and 14s series
  • Ships as L18C4PF0, L18D4PF0 or L18M4PF0 per stock

Specifications

BrandL18M4PF0 L18C4PF0 L18D4PF0
ModelL18M4PF0 L18C4PF0 L18D4PF0
ColorBlack
TypeBattery
CompatibilityFor ThinkBook 13s 13s-IML 13s-IWL 14s 14s-IWL Series
Battery TypeLithium-Ion
Battery Voltage15.36V
Battery Capacity45Wh

Questions about this item

How long will the 45Wh capacity last before the battery needs recharging during continuous use?

The 45Wh rating measures total energy storage; actual runtime depends on the laptop's power draw, screen brightness, and workload, so a single fixed duration cannot be given.

Does the lithium-ion pack run hot or make noise when the ThinkBook 13s is under load all day?

Lithium-ion batteries are silent and produce minimal heat; any warmth felt comes from the laptop's own processor and charging circuit, not from the pack itself.

Which specific ThinkBook model numbers must I already own for this L18M4PF0 L18C4PF0 L18D4PF0 battery to fit?

It fits ThinkBook 13s, 13s-IML, 13s-IWL, 14s and 14s-IWL series, including listed sub-models such as 20R90071GE, 20RR0060AU, 20RM0009US and 20RS0027AU.

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