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

Introduction

Tired of throwing away batteries that still seem “alive” but won’t quite power your devices? Believe it or not, you can revive old batteries using a simple household ingredient: salt. This easy trick can save money, reduce waste, and give your batteries a second life.

What You’ll Need

Old AA, AAA, C, or D batteries

2–3 tablespoons of table salt

Warm water

A small container (like a cup or bowl)

A paper towel

How It Works

Batteries lose their charge over time due to chemical buildup inside. Salt helps rebuild the internal electrolyte temporarily, allowing the battery to produce energy again.

Step-by-Step Instructions

Prepare the Salt Solution