ThinkPad Battery 39+

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ThinkPad Battery 39+

This is a battery pack that attaches to the docking port of a supported model.


  • Battery specification: 3.2Ah, 11.1V, 35.52Wh
  • Battery cell count: Six, 3.7V lithium-ion polymer pouch cell
  • Battery run time: up to 3 hours
  • Battery charge time: up to 40 minutes
  • Weight: 395 grams or 0.87 pounds

Thinkpad battery 39+.jpg

Part numbers

  • 0A36279, 42T4978, 42T4938

Models supporting this accessory