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Black rectangular laptop battery with label showing 11.1V 24WH

KingSener

KingSener X240 24WH 11.1V laptop battery

SKU CH-6DNN-3A1G0 MPN X240

24 Wh lithium-ion replacement battery for compatible Lenovo ThinkPad X240, X250, X260, X270, T440, T440S, T450, T450S, T460, T460P, T470P, T550, T560, W550, W550S, L450, L460, P50S, K2450.

  • Battery voltage rating11.1 V
  • Battery capacity2.09Ah/24WH
  • 24 Wh capacity delivers reliable mobile power
  • 1 V lithium-ion chemistry matches original spec
  • Replaces 45N1136 45N1738 45N1134 45N1777 part numbers
  • Fits ThinkPad X240 X250 X260 X270 T440 T440S T450 T450S T460 T460P T470P T550 T560 W550 W550S L450 L460 P50S K2450 K20-80 K21-80
  • Brand-new replacement battery with one-year warranty

Capacity and voltage

This 24 Wh lithium-ion battery operates at 11.1 V and 2.09 Ah. It replaces part numbers 45N1136, 45N1738, 45N1134 and 45N1777. The pack is brand new and finished in black.

Compatibility limits

Fits ThinkPad X240, X250, X260, X270, T440, T440S, T450, T450S, T460, T460P, T470P, T550, T560, W550, W550S, L450, L460, P50S, K2450, K20-80 and K21-80. Not for X240S, X230S, P50, T450P, T460S, T470, T550S, T550P, T560S or T560P.

Replacement part numbers

Matches Lenovo part numbers 45N1124, 45N1125, 45N1126, 45N1127, 45N1128, 45N1134, 45N1136, 45N1738 and 45N1777. Order only if your service manual lists one of these codes.

How it compares

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

Price $26.99
Cheaper than about 58% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameKingSener
Model nameX240
Part number45N1136 45N1738 45N1134 45N1777
Power
Battery voltage rating11.1 V
Battery capacity2.09Ah/24WH

Questions about this item

Which Lenovo ThinkPad models is the KingSener X240 battery compatible with?

This battery fits ThinkPad X240, X250, X260, X270, T440, T440S, T450, T450S, T460, T460P, T470P, T550, T560, W550, W550S, L450, L460, P50S, K2450, K20-80 and K21-80. It does not fit X240S, X230S, P50, T450P, T460S, T470, T550S, T550P, T560S or T560P.

Can I use this 11.1V 24WH battery in a ThinkPad that originally shipped with a different capacity pack?

Yes. The X240 replaces part numbers 45N1136, 45N1738, 45N1134, 45N1777, 45N1124, 45N1125, 45N1126, 45N1127 and 45N1128, so it works in any listed model regardless of the original pack's capacity.

How can I confirm the battery is working correctly after installation?

After fitting the pack, power on the laptop and check the OS battery indicator — it should show an 11.1V, 24WH battery charging normally and report healthy capacity within the power management utility.

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