Jump starting a recelled IBM Thinkpad T40 battery
2:47
Added: 6 months ago
From: hugatry
Views: 8,479
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  • This video went viral on Paris

    rolandhensle24 2 months ago

  • Hi!

    Is the fan parallel connected to the resistor?

    mitulabattyi 6 months ago

  • @mitulabattyi Yes. I connected the fan to be able to see when there is voltage in the connector. Resistor is for testing if the battery can handle 1A load.

    hugatry 6 months ago

  • Instead of a jumper, you might want to try jump starting it from the outside of the battery with a current limited 12V power supply. Pretty much any 12Vdc power supply with a 100 ohm resistor in series should be enough.

    therealjammit 6 months ago

  • Thank you for posting this!

    I have a dead thinkpad battery that I will try to revive following your technique.

    It is kind of a good thing that you didn't keep the battery looking like new when you opened it. The damaged case will be a reminder that the battery is modified and should be handled with extra caution.

    rcChopperDave 6 months ago

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