I have about 500 Lithium batteries of various types and sizes to test and charge up so I built myself a portable solar powered charging station for 10 batteries at a time.
Read the full article here: https://www.thedoityourselfworld.com/articles/article.php?id=11629
This charger can take any combination of up to 10 Lithium batteries at one time. Each battery has its own separate solar panel and charge controller.
I put spacers in between battery stations and wires to prevent any short circuits. This keeps the batteries in place.
Future upgrades will be the addition of 18650 battery holders mounted on the board as well as a carrying handle and a protective cover for the batteries to keep them out of the sun and heat. This will also allow me to grab the entire thing with batteries inside in case rain is coming.
The Do It Yourself World LLC
Get off the grid for $5,000 or less
DIY Tube Video Community
Your alternate video sharing community
Get help with your projects or share your experiences