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Black rectangular laptop battery with green label

GreenTechLLC

GreenTechLLC L19C3PF4 laptop battery 11.1V 4120mAh 45.7Wh 3-cell

SKU CH-75WW-K2591

Replacement 11.1V 4120mAh 3-cell lithium-ion battery for Lenovo IdeaPad 5 15-inch models

  • ColorBlack
  • TypeBattery
  • CompatibilityLENOVO IDEAPAD 5-15IIL05, IDEAPAD 5-15IIL05 81YK, IDEAPAD 5-
  • Battery Type3 Cell Lithium-Ion
  • Battery Voltage11.1V
  • Battery Capacity4120MAH
  • 7Wh capacity powers extended work sessions
  • 3-cell lithium-ion design balances weight and runtime
  • 1V output matches original Lenovo specifications
  • Replaces eight OEM part numbers for broad fit
  • CE FCC RoHS certified for safe operation

Compatible Lenovo IdeaPad 5 replacement

This GreenTechLLC 3-cell lithium-ion battery replaces multiple OEM part numbers for Lenovo IdeaPad 5 15-inch models including the IIL05, ARE05, ITL05 and ALC05 series. It delivers 11.1V and 4120mAh capacity matching the original 45.7Wh specification. The unit is built for owners whose factory battery no longer holds a useful charge.

Straightforward internal swap

Installation requires opening the laptop base and disconnecting the old pack before fitting the new one in the same orientation. The connector keying prevents reversed insertion, but the screw pattern varies between the 81YK, 81YQ, 82FG and 82LN chassis codes so verify the exact model before starting. No soldering or firmware update is needed.

Fixed 45.7Wh energy limit

The three-cell chemistry caps total capacity at 45.7Wh, so runtime scales directly with the notebook's power draw and cannot be extended by this part. Heavy workloads such as sustained video encoding or discrete-graphics gaming will deplete the pack faster than light office use. Users needing longer unplugged time must carry a second battery or use an external power bank.

Highlights

  • 7Wh capacity powers extended work sessions
  • 3-cell lithium-ion design balances weight and runtime
  • 1V output matches original Lenovo specifications
  • Replaces eight OEM part numbers for broad fit
  • CE FCC RoHS certified for safe operation

Specifications

BrandGreenTech
Model5B10W86955, 5B10W86959, 5B11N52042, 5B11N56343, L19C3PF4, L19D3PF3, SB10W86941, SB10W86951
Part Number5B10W86955, 5B10W86959, 5B11N52042, 5B11N56343, L19C3PF4, L19D3PF3, SB10W86941, SB10W86951
ColorBlack
TypeBattery
CompatibilityLENOVO IDEAPAD 5-15IIL05, IDEAPAD 5-15IIL05 81YK, IDEAPAD 5-15ARE05, IDEAPAD 5-15ARE05 81YQ, IDEAPAD 5-15ITL05, IDEAPAD 5-15ITL05 82FG, IDEAPAD 5-15ALC05, IDEAPAD 5-15ALC05 82LN
Battery Type3 Cell Lithium-Ion
Battery Voltage11.1V
Battery Capacity4120MAH

Questions about this item

How do I confirm the 11.1V 4120mAh battery is charging correctly after installing it in my IdeaPad 5-15IIL05?

Power on the laptop and verify the OS reports 11.1V and a rising charge percentage; the battery LED should show the normal charging pattern for your model.

Does the L19C3PF4 pack include screws or tools, or must I supply them myself?

The package contains only the 3-cell 45.7Wh battery; any case screws or opening tools required for your IdeaPad 5-15ARE05 are not included.

My original battery is marked SB10W86951 — is the L19C3PF4 the correct replacement?

Yes, this unit replaces SB10W86951, 5B10W86955, 5B10W86959, L19D3PF3 and the other listed part numbers for compatible IdeaPad 5 models.

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