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Black rectangular 6-cell lithium-ion laptop battery

Damaite

Damaite 48Wh 10.8V 6-Cell Laptop Battery for Lenovo ThinkPad X240 X250 T440 T450 T550 X270 45N1136

SKU CH-2K6G-9Q3MS

6-cell lithium-ion replacement delivering 48 Wh at 10.8 V for compatible ThinkPad models

  • ColorBlack
  • TypeBattery
  • Battery TypeLithium-Ion
  • Battery Voltage10.8V
  • Battery Capacity48Wh
  • 48 Wh capacity delivers up to 4.5 hours runtime
  • 6-cell lithium-ion design provides reliable mobile power
  • 8 V output matches original Lenovo specifications
  • Compatible with ThinkPad X240 X250 T440 T450 T550 X270 series
  • Brand-new A-grade cells rated for 300-500 charge cycles

Replacement Battery for ThinkPad X240 T450 T550

This 10.8V 48Wh lithium-ion pack replaces Lenovo part numbers 45N1124 through 45N1129 and 45N1136 across ThinkPad X240 X250 T440 T450 T550 and X270 models. Six cells deliver approximately 2 to 4.5 hours of operation depending on workload. The unit ships new in a packing box and is ready to install.

Suits owners of listed ThinkPads needing a direct

Buyers whose laptop requires a different voltage or a higher capacity such as 68Wh or 72Wh should look elsewhere. The battery is not compatible with models outside the specified part-number range and will not fit systems that use a different physical form factor or connector.

Key specification is the 48Wh capacity at 10.8V

This figure determines whether the pack meets the runtime requirement for the target machine. If the original battery was rated at 48Wh the replacement matches it exactly; if the original was rated higher the run time will be shorter.

Highlights

  • 48 Wh capacity delivers up to 4.5 hours runtime
  • 6-cell lithium-ion design provides reliable mobile power
  • 8 V output matches original Lenovo specifications
  • Compatible with ThinkPad X240 X250 T440 T450 T550 X270 series
  • Brand-new A-grade cells rated for 300-500 charge cycles

Specifications

BrandFoe Lenovo
Part Number121500146 121500147 121500148
45N1124 45N1125 45N1126 45N1127
45N1128 45N1129 45N1767
ColorBlack
TypeBattery
Battery TypeLithium-Ion
Battery Voltage10.8V
Battery Capacity48Wh

Questions about this item

Does the 6-cell lithium-ion pack run hot or draw extra power during a full day of use?

The 48 Wh, 10.8 V battery is rated for 300 to 500 charge cycles and delivers roughly 2 to 4.5 hours of operation per charge, so heat and power draw stay within normal laptop limits.

Which original Lenovo part numbers must my ThinkPad already accept for this replacement to fit?

It replaces Lenovo part numbers 45N1124, 45N1125, 45N1126, 45N1127, 45N1128, 45N1129, 45N1136, 45N1767, 121500146, 121500147 and 121500148.

Will it work in an older ThinkPad T440 that I plan to keep alongside a newer T460?

Yes, the battery is listed as compatible with both the T440 series and the T460 series, so it fits either machine.

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