1. Prepare the saline solution

Heat  150 ml of water , then add  a tablespoon of salt . Mix until  completely dissolved .

2. Soak the batteries

Dip the  discharged batteries  into the solution. Stir gently to  ensure that the salt is evenly distributed  over the entire surface.

3. Let it act

Wait  15 to 20 minutes  for the solution  to take effect and reactivate the  battery’s internal components .

4. Dry thoroughly

Remove the batteries and  wipe them thoroughly  with paper towels.  Any traces of moisture must be removed  to prevent  oxidation .

5. Test the batteries

Put them back  into your device  and  check if they work again  !

Does this method work on all batteries?

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

Why adopt this tip?

• Economical  : Less waste,  more savings  on buying new batteries.
• Ecological  : Less waste,  a simple gesture for the environment .
• Convenient  : No need for expensive equipment,  just salt and water  !

One last tip: recycle your used batteries!

If, after this attempt,  your batteries are still unusable ,  do not throw them away anywhere  !  Drop them off at a collection point  to avoid pollution due to the  heavy metals  they contain.

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