How would you like to use dead batteries or make homemade batteries to power things like flashlights or similar things that can make your life more comfortable or even save your life?
Simple DIY portable solar power box for camping or emergencies
Building a portable powerplant that can be charged with either the sun, AC voltage or 12 volt DC is pretty simple. There are just a few simple considerations and then you have MANY options. Here’s how I hooked up a box for camping to run my ham radio and other electronics.