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Black rectangular laptop battery with connector edge

GreenTechLLC

GreenTechLLC L20C3P72 laptop battery for ThinkPad X13 Gen 2 3 11.52V 41Wh

SKU CH-T3DT-WHSG9

A 3-cell lithium-ion replacement battery delivering 11.52 V and 41 Wh for ThinkPad X13 Gen 2 and Gen 3 models

  • ColorBlack
  • TypeBattery
  • CompatibilityLENOVO THINKPAD X13 GEN 2, THINKPAD X13 GEN 2 20WK, THINKPAD
  • Battery Type3 Cell Lithium-Ion
  • Battery Voltage11.52V
  • Battery Capacity3564mah
  • Replaces multiple OEM part numbers for easy sourcing
  • Compatible with ThinkPad X13 Gen 2 and Gen 3 models
  • 41 Wh capacity supports extended mobile use
  • 52 V lithium-ion chemistry matches original specs
  • Tested for voltage stability and CE/FCC/RoHS safety

Compatible replacement battery for ThinkPad X13

This GreenTechLLC battery replaces the original Lenovo L20C3P72, L20D3P72 and L20M3P72 packs. It fits ThinkPad X13 Gen 2 models 20WK, 20WL, 20XH and 20XJ as well as Gen 3 models 21CM, 21CN, 21BN and 21BQ. The unit is a new three-cell lithium-ion pack rated at 11.52 V and 41 Wh.

Suits owners restoring a compatible X13

It is intended for users who need a direct drop-in replacement for a worn or failed OEM battery in the listed ThinkPad X13 generations. Buyers who require a higher-capacity pack, a different voltage, or a battery for any other laptop series should look elsewhere.

The deciding specification is the 11.52 V 41 Wh

Only systems designed for this exact voltage and watt-hour value will operate correctly with the pack. Matching the 11.52 V figure against the original battery label confirms compatibility before purchase.

Highlights

  • Replaces multiple OEM part numbers for easy sourcing
  • Compatible with ThinkPad X13 Gen 2 and Gen 3 models
  • 41 Wh capacity supports extended mobile use
  • 52 V lithium-ion chemistry matches original specs
  • Tested for voltage stability and CE/FCC/RoHS safety

Specifications

BrandGreenTech
ModelL20C3P72, L20D3P72, L20M3P72, SB10W51948, SB10W51959, SB10W51960, SB11M89875, 5B10W51824, 5B10W51825, 5B10W51858, 5B10W51859, 5B11M90074, 5B11M90075
Part NumberL20C3P72, L20D3P72, L20M3P72, SB10W51948, SB10W51959, SB10W51960, SB11M89875, 5B10W51824, 5B10W51825, 5B10W51858, 5B10W51859, 5B11M90074, 5B11M90075
ColorBlack
TypeBattery
CompatibilityLENOVO THINKPAD X13 GEN 2, THINKPAD X13 GEN 2 20WK, THINKPAD X13 GEN 2 20WL, THINKPAD X13 GEN 2 20XH, THINKPAD X13 GEN 2 20XJ, THINKPAD X13 GEN 3, THINKPAD X13 GEN 3 21CM, THINKPAD X13 GEN 3 21CN, THINKPAD X13 GEN 3 21BN, THINKPAD X13 GEN 3 21BQ
Battery Type3 Cell Lithium-Ion
Battery Voltage11.52V
Battery Capacity3564mah
Dimension11 x 4 x 0.25"
Weight0.75lb

Questions about this item

What are the exact dimensions of the L20C3P72 battery so I can confirm it fits my ThinkPad X13 Gen 2 or Gen 3 chassis?

The pack measures 11 x 4 x 0.25 inches and weighs 0.75 lb, matching the internal bay used across X13 Gen 2 and Gen 3 models.

Which screw or connector step do installers most often miss when swapping the 11.52 V 41 Wh battery in a ThinkPad X13?

After removing the bottom cover, disconnect the old battery cable first; many forget this and risk a short when lifting the 3-cell pack out.

What component should I check if the GreenTech 3564 mAh pack stops holding charge after heavy use?

The internal cells are sealed, so no user-serviceable parts exist; when runtime degrades the whole L20C3P72 unit must be replaced.

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