NiMh battery to Li-ion conversion and other stuff!

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I managed to scrounge up two perfectly good Makita power tools using an old NiMH post-style battery. Even if you can find new batteries, NiMH is significantly less effective than Li-ion. When Biltema launched their 18V MultiX system, it made sense to convert my power tools to Li-ion instead of buying new ones. And while the base model for the battery interface was completed, I realized it could be used for other handy projects. It's a solid foundation to build on. WARNING! Running Li-ion batteries without proper monitoring can lead to catastrophic consequences, both for you and your tools. Be smart! These batteries are also branded and sold by Draper and Sealys. Possibly more brands offer them as well. I started by crafting wooden prototypes, which turned out great, so I still use them on my tools! That's another option if you want to try it too.