DIY Power Tool Battery: How to Make Your Own Cheap and Long-Lasting Batteries

[@TheRainHarvester]

3 in parallel. 5 of those in series?

[@TheRainHarvester]

Rebuilding a battery is so much easier than maintaining a gas chain saw!

[@TheRainHarvester]

Iron redux! I've been watching that professor show his progress. Great for home use! Are you going off grid, or grid tie? I keep thinking of ways to use the solar immediately to forgo the battery.

[@Rowow]

correct! and im already off grid and just looking to add more capacity to my system. You can do lithium storage which will last a night or two for a couple grand from battery hookup but if I can scale up the redox flow system ill be able to have energy storage for weeks for the same amount. Redox flow is about $10-20 a kwh.

[@TheRainHarvester]

@@Rowow dang that's supercheap!! How big will it be? Barrels full of iron?

[@Rowow]

@@TheRainHarvester yes a couple barrels full of ferric chloride which is made from iron in hydrochloric acid

[@ninja5672]

From my research, you have to be careful to use high rate 18650 batteries for power tools. I think some of those batteries for some uses are low charge/discharge rate. Is that correct?

[@Rowow]

yes thats correct! I had to learn the hard way with my first battery I used a low discharge rate battery. Now I save the best batteries for my power tool packs and use the rest for other less intense applications

[@RehanRC]

Resell them. Get a 3d printer if you need to to add a special designed case or whatever.

[@ninja5672]

Liability...