Never Buy New Batteries Again: How Salt Can Recharge Your Old Batteries

Mix 2–3 tablespoons of salt into ½ cup of warm water until dissolved.

Soak the Batteries

Place the negative end of the old battery into the salt solution for 10–15 minutes.

Make sure the battery stays upright and does not fully submerge.

Dry the Batteries

Remove the battery and dry it thoroughly with a paper towel.

Test the Battery

Insert the battery into a device to check if it has regained some power.

Repeat the process if necessary.

Tips for Best Results

Only attempt with alkaline batteries (AA, AAA, C, D). Avoid lithium or rechargeable batteries.

Do not leave batteries in water too long—this can damage them permanently.

This method works best for batteries that are partially depleted, not completely dead.

Safety Precautions