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Rectangular black lithium-ion laptop battery with label showing 11.1V 24Wh

KingSener

KingSener X240 24WH 11.1V laptop battery 45N1110

SKU CH-H769-ZCVS5

11.1 V 24 Wh lithium-ion replacement battery for ThinkPad X240 X250 X260 X270 T440 T440s T450 T450s T550 L450 L450s W550 W550s series

  • Battery Voltage11.1V
  • Battery Capacity2.09Ah/24WH
  • 24 Wh capacity powers compatible ThinkPad models through a full workday
  • 1 V lithium-ion chemistry delivers stable voltage for reliable system operation
  • Replaces part numbers 45N1108 through 45N1113 for straightforward installation
  • Certified to IEC 62133 for verified electrical and thermal safety
  • Built-in protection circuitry guards against overcharge, over-discharge and short circuits

Compatible ThinkPad Internal Battery

The KingSener X240 is a new 11.1 V lithium-ion internal battery rated at 24 Wh and 2.09 Ah. It replaces Lenovo part numbers 45N1108 through 45N1113 and 121500143 through 121500145. The pack fits ThinkPad X240, X250, X260, X270, T440, T440s, T450, T450s, T550, L450, L450s, W550 and W550s models.

Upgrade From Worn Original Cells

This unit replaces a depleted factory battery that no longer holds a useful charge. The jump is worth it when the original pack drops below acceptable runtime or triggers a capacity warning. CE and IEC 62133 certification confirms the replacement meets European safety requirements.

Suits ThinkPad Owners Needing Direct Replacement

The battery suits owners of the listed ThinkPad models who want a drop-in internal pack with the same voltage and capacity. Buyers needing higher capacity than 24 Wh or a different form factor should look at other options.

Highlights

  • 24 Wh capacity powers compatible ThinkPad models through a full workday
  • 1 V lithium-ion chemistry delivers stable voltage for reliable system operation
  • Replaces part numbers 45N1108 through 45N1113 for straightforward installation
  • Certified to IEC 62133 for verified electrical and thermal safety
  • Built-in protection circuitry guards against overcharge, over-discharge and short circuits

Specifications

BrandKingSener
ModelX240
Part Number45N1108 45N1109 45N1110 45N1111 45N1112 45N1113 121500144 121500143
Battery Voltage11.1V
Battery Capacity2.09Ah/24WH

Questions about this item

Will the 45N1110 battery fit inside my ThinkPad X240 without an external bracket?

The 45N1110 is an internal pack shaped for the X240 X250 X260 X270 T440 T440s T450 T450s T550 L450 L450s W550 W550s chassis; it slides into the standard battery bay and secures with the existing latch — no extra bracket or adapter is required.

What is the common mistake when installing this 11.1 V 24 Wh pack in a ThinkPad T440s?

Many users forget to disconnect the AC adapter and hold the power button for fifteen seconds to clear flea power before swapping the pack; skipping that step can leave the new 45N1110 unrecognised by the EC until a full power-cycle is performed.

When will the 2.09 Ah lithium-ion cells in this 45N1110 need replacing?

Capacity fades gradually with each full charge cycle; when run-time drops to roughly half of the original 24 Wh rating — typically after several hundred cycles — the pack should be swapped for a fresh 45N1110 unit.

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