How To Use Saltwater To Charge a Battery
✓ THIS POST MAY CONTAIN AFFILIATE LINKS*
If you use rechargeable batteries, then you need to know about this device: A battery charger that uses saltwater to charge batteries! All you have to do is get some saltwater (or make a saltwater solution), pour it into the charger, and it will charge six AA batteries in just a couple of hours.
You can watch the full video below.