AAA Battery Mod - Convert a AAA Battery Into a AA.

Assuming you're brought and/or have never heard of rechargeable batteries, here's a trick to convert a AAA battery into a AA.

You'll need the following;

• 1 AA battery for reference
• 1 AAA battery for use
• Piece of tinfoil (8cm x 2cm)
• Scotch tape
• Thick elastic band

Roll the tinfoil into a tight button to create an extension on one end of the AAA battery. Make sure to match the height of the AAA/tinfoil combo to the height of the AA battery. Wrap the scotch tape around the AAA battery and tinfoil button.
Wrap the elastic band around the AAA battery to match the thickness of the AA (this will also prevent the AAA from rolling around in the battery chamber).