![]() If you get Battery Boys to rebuild your battery pack for you (which is costly), some of the kids that work there don’t even know this. Only later did I find out that the battery store can give you cardboard washers made to go around the +ve terminal and under the solder tabs, thus preventing the problem. When I rebuilt my first drill battery and got three shorts, I corrected the problem with 3 layers of electrical tape under each of the solder tabs. If the solder tab attached to + touches that outer rim, you get a short, lots of current, lots of heat and quite possibly a damaged cell, even if you correct the problem. Here’s a nasty little gotcha and how to avoid it: Sub-C NiCd cells used in drills often have the entire outer cylindrical shell attached to the negative terminal – including the outer rim at the edge of the +ve end. Posted in Repair Hacks Tagged aa, cordless, dremel, nicad, nimh, rechargeable Post navigation We just wish that the battery pack had been designed to have the AA cells swapped out by the user once they had reached the end of the line.ĭo you have other cordless tools in need of a pick-me-up? Check out this Makita battery pack repair hack for a point in the right direction. We totally understand having a battery pack, since the shape of the case is part of the handheld tool, and it should be easy to interchange the battery as one unit. Since you’re already at it, a few more bucks will yield a real upgrade by using the superior Nickel Metal Hydride batteries which should yield around three times as much use between charging. ![]() Yep, standard rechargeable AA’s that you can buy most anywhere, and now you can revive that aging battery pack by following guide. ![]() It turns out there’s nothing more than six Nickel Cadmium AA rechargeable batteries inside of that cordless Dremel battery pack.
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