Have you ever worked with a device that needed batteries, but the battery slot was too large for the ones you had? Well, here is a way to convert smaller batteries to larger batteries (in this case, convert AAA batteries to AA batteries).
Step 1. Take your device that needs AA batteries and have AAA batteries on hand
Step 2. Take some aluminum foil
Step 3. Put the AAA batteries in the battery slot of your device
Obviously you will see that there is a little extra space left in the slot since AAA batteries are smaller than AA batteries.
Step 4. Break off a piece of aluminum foil and roll it into a ball
The size of the ball should be the same size as the extra space in your device's battery slot.
Step 5. Place aluminum foil in the gap
The aluminum foil should be on the negative terminal of the battery, not the positive.
Step 6. You are done
The device will work.
- Make sure the aluminum is on the negative pole of the battery, otherwise it won't work.
- Since AAA batteries are smaller than AA batteries, they will not last long in a device that needs AA batteries.
- Tin foil can work too.
- You can also use other batteries.