Tag Archive for cordless

Re-making Makita LXT batteries

It’s no surprise that Makita tools are very popular and they are everywhere. Their batteries are pretty durable and good quality as well. But as good as they are the batteries will die someday and when that happens you’ll need a new one and new genuine batteries cost a lot. Or you can fix the old one by changing cells inside… which would be the case if Makita didn’t adopt the no-fixing policy for their batteries and that makes me (and probably many others) mad.

Turns out that LXT series batteries are protected by a complicated control board that bricks itself whenever it senses that a cell in the pack is bad. All other cells could be in great condition, but the pack won’t work anyway even if you replace the faulty cells.
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Meec custom cordless drill battery and charging station

At the Kaunas Makerspace that I visit very often to do various projects, most tools there are donated, some are bought and some tools are self-made (like a spot-welder that I used to connect batteries).

In the case of cordless drills the situation was never good. There are a few of them, but all are missing batteries or have dead packs and sometimes when you need to screw or drill something a bit it’s a little annoying, so we made a few from old LiPo (18650) cells that we salvaged from laptop batteries for Meec cordless drills. They have a very neat battery holder design – batteries simply slide in.

Making of the battery pack is easy, hardest part was to make a case for them and of course a charging station.
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