SolarDIY

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SolarDIY is a vibrant community dedicated to embracing the power of solar energy. Here, we encourage you to showcase your ingenious ideas, innovative projects, and inspiring stories, while also seeking valuable advice, fresh ideas, and fostering meaningful connections.

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pdavis@lemmy.world

Solar charger for tool batteries. (lemmy.world)

submitted 1 month ago by FauxPseudo@lemmy.world to c/solardiy@lemmy.world

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I want to make a solar charger for tool batteries. I'm thinking plug a standard AC dual 5 amp 20v battery charger into an inverter charged via a solar battery bank. Enough to charge four batteries during the day. That's not in the budget so I'm going to start small with just one battery at a time (600watts?). Maybe two batteries a day if I can afford it.

Who here has built such a battery bank? What advice do you have? What handy online calculators do you recommend? Is there a spreadsheet available that is better than a calculator? In the past I would have looked for those myself but search engines are totally useless now. Would you rather have one big battery hooked up to the inverter or a bank of smaller batteries in series or parallel?

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[–] mortalic@lemmy.world 1 points 1 month ago (1 children)

This won't work for most tool chargers as they are 110-240v usually.

[–] Know_not_Scotty_does@lemmy.world 2 points 1 month ago (1 children)

I know for a fact Dewalt, Milwaukee, and Makita offer 12 volt versions of the chargers for their power tool batteries.

[–] FauxPseudo@lemmy.world 1 points 1 month ago

But not Hercules. Which is my default after my Makita stuff got stolen out of a work truck.