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Makita hammer drill keeps discharging or shorting batteries


Glyph

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Hi all, I have a strange issue that has arisen where all of a sudden 3 quite new batteries would stop holding charge. They all appeared to have this problem at the same time, but then I discovered that it looks like my hammer drill (XHP07) keeps shorting them.

 

I would keep recharging the batteries, the indicator would show they were fully charged, I would then put them in the hammer drill, and then with a few seconds they would be dead. If I put these fully charged batteries into another tool, then they continue to work as usual, so I have isolated it to the hammer drill as the cause.

 

Has anyone come across this situation, where a tool would instantly discharge a battery? I was recently using the hammer drill in the garden for drilling out plant holes with an auger like attachment, and I am wondering if maybe dirt or moisture has gotten inside. 

 

I could take it to a repair shop, but it will probably cost more than the drill. I am wondering if someone knows what to look for if I want to give the internals of the drill a clean or check its connections.

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Sounds like the electronics in the drill have gotten buggered in such a way that their communication with the battery doesn’t do anything but tell the battery it’s dead when it most definitely is not. Maybe it’s something that will eventually magically reset itself, I can’t think of a way off the top of my head how to glitch it back into shape. These things don’t exactly come with reboot features.

 

Just wondering but these don’t happen to be “aftermarket” batteries are they?

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