expirednnmsgst posted Dec 18, 2023 03:38 AM
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expirednnmsgst posted Dec 18, 2023 03:38 AM
Milwaukee M12 FUEL 12-Volt Lithium-Ion Brushless Cordless 1/4 in. Right Angle Die Grinder w/4.0 Ah Starter Kit 48-59-2440-2485-20 - $159.99
$160
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These are great, just be sure to use a face shield and long sleeves because wires shoot out pretty quick at 20k rpm
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Our community has rated this post as helpful. If you agree, why not thank par38lamp
I suspect this is a very high current tool.
It pulls the 3S cells too far out of balance, and then the charger will refuse to charge them. Staggeringly, the M12 charger is not a balance charger.
I was able to repair my batteries by opening them up and individually charging each pair back to 4.2V, and then the charger was happy.
I haven't used this tool since then with the HO batteries to see if it is any better.
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I suspect this is a very high current tool.
It pulls the 3S cells too far out of balance, and then the charger will refuse to charge them. Staggeringly, the M12 charger is not a balance charger.
I was able to repair my batteries by opening them up and individually charging each pair back to 4.2V, and then the charger was happy.
I haven't used this tool since then with the HO batteries to see if it is any better.
milwaukee has problems with manufacturing (bad spot welding) as well as their battery management system (charges groups of cells unevenly until one group's voltage falls so low that it won't charge any more). either issue can cause your battery to stop taking charge.
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