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Black rectangular laptop battery with green circuit board visible

GreenTechLLC

GreenTechLLC 01AV479 57WHR laptop battery for Lenovo ThinkPad T480S

SKU CH-JKGW-ZR0P7

57 Whr lithium-ion replacement battery fits Lenovo ThinkPad T480S models

  • ColorBlack
  • TypeBattery
  • CompatibilityLENOVO THINKPAD T480S, THINKPAD T480S 20L7, THINKPAD T480S 2
  • Battery Type3 Cell Lithium-Ion
  • Battery Voltage11.52V
  • Battery Capacity4920MAH
  • 57 Wh capacity supports longer unplugged sessions
  • 52 V output matches original ThinkPad T480S specifications
  • 4920 mAh lithium-ion cells deliver stable current under load
  • Three-cell design keeps weight low while maintaining runtime
  • Tested for voltage accuracy, circuit protection and low self-discharge

Product Identity

This is a new GreenTechLLC replacement battery built for the Lenovo ThinkPad T480S series, covering the 20L7 and 20L8 chassis codes. It serves owners who need a direct swap for an ageing original pack without changing form factor or connector layout. Buyers using any other ThinkPad model or a different laptop brand cannot use this unit.

Decisive Specification

The pack delivers 57WHR at 11.52V from a 3-cell lithium-ion design rated at 4920MAH. Matching those exact voltage and capacity figures is the only way to confirm the battery will report correct charge levels and meet the system power budget. A pack with a different watt-hour rating or cell count will not sit flush or communicate properly with the embedded controller.

Installation Reality

The battery slides into the internal bay after the bottom cover is removed, typically requiring only a small Phillips driver and a few minutes. The most common issue is forgetting to disconnect the mainboard cable before lifting the old pack, which can trigger a short-circuit protection lockout. Buyers who want an external or hot-swappable power source will need a different solution.

Highlights

  • 57 Wh capacity supports longer unplugged sessions
  • 52 V output matches original ThinkPad T480S specifications
  • 4920 mAh lithium-ion cells deliver stable current under load
  • Three-cell design keeps weight low while maintaining runtime
  • Tested for voltage accuracy, circuit protection and low self-discharge

Specifications

BrandGreenTech
Model01AV478, 01AV479, 01AV480, L17L3P71, L17M3P71, L17M3P72, SB10K97620, SB10K97621, SB10K97622
Part Number01AV478, 01AV479, 01AV480, L17L3P71, L17M3P71, L17M3P72, SB10K97620, SB10K97621, SB10K97622
ColorBlack
TypeBattery
CompatibilityLENOVO THINKPAD T480S, THINKPAD T480S 20L7, THINKPAD T480S 20L8
Battery Type3 Cell Lithium-Ion
Battery Voltage11.52V
Battery Capacity4920MAH

Questions about this item

How long will the 57 Whr rating actually run my ThinkPad T480S?

The 57 Whr capacity matches the original specification, so you can expect similar runtime to a factory-fresh battery under the same workload.

What connector does the 11.52 V pack use and will it limit charging speed?

It uses the standard ThinkPad T480S internal connector; charging speed is governed by the laptop's own power-management firmware, not the battery.

Will the three-cell 4920 mAh pack fit inside the T480S chassis without modification?

Yes, the battery is built to the exact dimensions of the OEM 01AV479 and slides into the existing bay with no extra brackets or adapters.

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