Question about Dremel 8000 01 Cordless Rotary Tool Kit Variable Speed 10.8 Volt Lithium Ion

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Model 800 Dremel cordless won't work

After fully charging the battery of my model 800, 10.8 volt, variable speed Lithium ion battery Dremel, I can't get it to work more than a second or two at a time.

It dies and won't restart unless I wait, or disconnect the battery and put it back on. When this was new, it worked fine until the battery died, and has never worked since.

I thought the battery wasn't charging at first, but today it works for a second, then quits.

Any ideas?

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  • dianamca Nov 16, 2008

    I'll give it a shot starting tonight, thanks

  • pepperton Feb 23, 2009

    I have the same problem. I have two batteries and after charging them both, the same thing is happening. The tool starts OK but after 10 seconds or so, dies. Both batteries are doing this.

  • jtelswick Mar 08, 2009

    I got mine new as a gift, but didn't get around to using it for nearly a year. I charged it overnight, and when I went to use it, it would start and run, but would cut off if I put it under even the lightest of loads. I couldent even polish with it.


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Try putting the battery in the charger with the power turned off (unplugged from wall socket ) leave over night then start recharging fresh and dont disturb for 10hours after 10 hours see if any better hope this helps glenn.........

Posted on Nov 16, 2008

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Okay, I followed the advice by the one previous fix, and discharged the battery. I sat and switched it on and ran it until it died, and disconnected and reconnected the battery, and did it all over again and again (it took about an hour) until the battery was TOTALLY drained. The next day I put it on the charger for 10 hours. It works perfectly now. I can't believe how long it will run on a charge, and it is really powerful. Thanks for the advice.


Posted on Mar 09, 2009

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