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Black rectangular laptop battery with connector strip

GreenTechLLC

GreenTechLLC L21L4P71 52.5Wh laptop battery for ThinkPad T14 Gen 3 P14s Gen 3

SKU CH-4RB4-66THM

A 52.5Wh four-cell lithium-ion replacement battery for ThinkPad T14 Gen 3 and P14s Gen 3 laptops

  • ColorBlack
  • TypeBattery
  • CompatibilityL21C4P71, L21D4P71, L21L4P71, L21M4P71, L21M4P72, SB10W51964
  • Battery Type4 Cell Lithium-Ion
  • Battery Voltage15.48V
  • Battery Capacity3392mAH
  • 5 Wh capacity extends mobile runtime
  • 48 V 4-cell lithium-ion matches original spec
  • Replaces over 30 Lenovo part numbers for wide compatibility
  • Slim 11 x 3.5 x .3 in profile fits T14 and P14s Gen 3 chassis
  • Light .7 lb weight keeps ultraportable balance

Replacement Battery for ThinkPad T14 Gen 3

This new GreenTechLLC 52.5Wh lithium-ion battery replaces the original power pack in Lenovo ThinkPad T14 Gen 3 and P14s Gen 3 laptops. It delivers 15.48V from a 4-cell design rated at 3392mAh. The black unit measures 11 x 3.5 x .3 in and weighs .7lb.

Upgrading from a Depleted or Failing Original Pack

Swap this battery in when the factory cell no longer holds a useful charge or shows rapid capacity loss. The jump is worth it if your machine shuts down unexpectedly, reports a permanent capacity warning or simply cannot last through a typical work session away from mains power.

Verify Your Exact Part Number Before Ordering

Confirm that your current battery carries one of the listed OEM part numbers such as L21C4P71, L21M4P71, SB10W51965 or 5B10W51864. Also check that your laptop model matches the supported T14 Gen 3 or P14s Gen 3 variants including 21AH, 21AJ, 21AK and 21AL.

Highlights

  • 5 Wh capacity extends mobile runtime
  • 48 V 4-cell lithium-ion matches original spec
  • Replaces over 30 Lenovo part numbers for wide compatibility
  • Slim 11 x 3.5 x .3 in profile fits T14 and P14s Gen 3 chassis
  • Light .7 lb weight keeps ultraportable balance

Specifications

BrandGreenTech
ModelLENOVO THINKPAD T14 GEN 3, THINKPAD T14 GEN 3 21AH, THINKPAD T14 GEN 3 21AJ, THINKPAD P14S GEN 3, THINKPAD P14S GEN 3 21AK, THINKPAD P14S GEN 3 21AL
Part NumberL21C4P71, L21D4P71, L21L4P71, L21M4P71, L21M4P72, SB10W51964, SB10W51965, SB10W51966, SB10W51967, SB10W51968, SB11M89826, SB11M89827, SB11M89829, SB11M89830, 5B10W51863, 5B10W51864, 5B10W51865, 5B10W51866, 5B10W51867, 5B10W51899, 5B10W51900, 5B10W51901, 5B10W51902, 5B10W51905, 5B11M90025, 5B11M90026, 5B11M90027, 5B11M90028, 5B11M90029
ColorBlack
TypeBattery
CompatibilityL21C4P71, L21D4P71, L21L4P71, L21M4P71, L21M4P72, SB10W51964, SB10W51965, SB10W51966, SB10W51967, SB10W51968, SB11M89826, SB11M89827, SB11M89829, SB11M89830, 5B10W51863, 5B10W51864, 5B10W51865, 5B10W51866, 5B10W51867, 5B10W51899, 5B10W51900, 5B10W51901, 5B10W51902, 5B10W51905, 5B11M90025, 5B11M90026, 5B11M90027, 5B11M90028, 5B11M90029
Battery Type4 Cell Lithium-Ion
Battery Voltage15.48V
Battery Capacity3392mAH
Dimension11 x 3.5 x 0.3 in
Weight0.7lb

Questions about this item

Will the 11 x 3.5 x .3 in battery fit my ThinkPad T14 Gen 3?

Yes, the 11 x 3.5 x .3 in form factor matches the internal bay of the ThinkPad T14 Gen 3 and P14s Gen 3 models listed in the compatibility data.

What is the common mistake when installing the 4 cell lithium-ion pack?

Forgetting to disconnect the internal connector before removing the old pack; always unplug the battery cable from the motherboard first to avoid a short circuit.

When should I replace the 52.5Wh pack?

Replace it when run time drops well below the original 52.5Wh rating or the system reports a permanent capacity loss after many charge cycles.

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