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Black rectangular lithium-ion laptop battery pack with label showing 11.1V 45Wh

LXHY

LXHY 45Wh 11.1V Laptop Battery for ThinkPad E480 E490 E580 E590 E14 E15

SKU CH-28FN-3NJC9

Replaces original 45Wh 11.1V batteries across ThinkPad E480, E490, E580, E590, E14 and E15 models

  • ColorBlack
  • TypeBattery
  • Battery TypeLithium-Ion
  • Battery Voltage11.1V
  • Battery Capacity4050mAh
  • Replaces multiple Lenovo part numbers for easy ordering
  • Fits ThinkPad E480 E490 E580 E590 E14 E15 models
  • 45Wh lithium-ion capacity powers extended work sessions
  • 1V output matches original battery specifications
  • Up to 500 charge cycles for long service life

45Wh replacement battery for ThinkPad E series

This 45Wh lithium-ion battery operates at 11.1V and replaces part numbers including 01AV445, 01AV446, 01AV447, 01AV448, L17L3P51 and L17C3P51. It fits ThinkPad E480, E485, E490, E495, E580, E585, E590 and E595 models as well as E14 and E15 Gen 1 units from 2019. The three-cell pack is supplied new and ready for installation.

Practical limits of a 45Wh lithium-ion pack

Capacity of 45Wh and 4050mAh sets the runtime ceiling for a single charge. The supplier rates the cell life at up to 500 discharge cycles before noticeable capacity loss. Voltage is fixed at 11.1V so the pack only works in laptops designed for that specification. It will not fit ThinkPad E14 or E15 generations beyond Gen 1, nor E41-50 and E41-55 series despite similar naming.

Upgrading from a depleted original battery

This unit replaces an aged or failed factory battery showing reduced run time or inability to hold charge. The jump is worth it when the original pack drops well below its rated cycle count or swells physically. Buyers needing higher capacity than 45Wh or compatibility with newer ThinkPad generations should look elsewhere as this model matches the original specification only.

Highlights

  • Replaces multiple Lenovo part numbers for easy ordering
  • Fits ThinkPad E480 E490 E580 E590 E14 E15 models
  • 45Wh lithium-ion capacity powers extended work sessions
  • 1V output matches original battery specifications
  • Up to 500 charge cycles for long service life

Specifications

ModelL17L3P51
ColorBlack
TypeBattery
Battery TypeLithium-Ion
Battery Voltage11.1V
Battery Capacity4050mAh

Questions about this item

Which capacity should I choose between the 45Wh and 4050mAh ratings?

Both figures describe the same battery: 45Wh at 11.1V equals 4050mAh, so there is only one capacity to select.

What does the 45Wh rating mean for daily runtime in a ThinkPad E14?

The 45Wh pack typically delivers several hours of mixed office use, matching the original runtime when the laptop was new.

Does the 11.1V specification limit compatibility with my E590?

No, 11.1V is the exact voltage required by the E590 and all other listed ThinkPad models.

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