Bring yourself back to the dead batteries with just a spoonful of salt.

The trick of salt and hot water is particularly effective for conventional alkaline batteries (type AA, AAA) and some button cells.
On the other hand, it is unnecessary for rechargeable or lithium-ion batteries, which require specific methods to be regenerated.

Why adopt this trick?
Economic: Less waste, more savings on the purchase of new batteries.
Ecological: Less waste, a simple gesture for the environment.
Practice: No need for expensive equipment, just salt and water.
One last piece of advice: recycle your worn batteries.

If, after this attempt, your batteries are out of order, do not throw them away from anywhere. Place them in a collection point to avoid pollution from the heavy metals they contain.

With this simple trick, you can extend the life of your batteries and make a gesture for the planet. So, before you replace them, think about giving them a second chance.