Introduction
Instead of throwing away discharged batteries, you can sometimes restore their power using a simple household ingredient: salt. This quick and inexpensive method may help you get extra life out of AA, AAA, C, or D batteries before recycling them.
Ingredients / Materials
Discharged battery (AA, AAA, C, or D)
1 teaspoon table salt
Warm water (enough to dissolve the salt)
Small bowl or cup
Paper towel or cloth
How to “Recharge” Old Batteries
