Switching from AAA to AA batteries

Kylwell · Post by **Kylwell** » Sun Feb 07, 2016 11:01 pm

So great gurus of electrons, I have a device (lamp) that run on 3 AAA batteries. Due to it's short life I'd like to swap the battery box out for on using 3 AA batteries. Is there anything I need to do other than swap out the box? My remembrance of electronics theory is, well, dim.

JAYCOCK ALFRED · Post by **JAYCOCK ALFRED** » Mon Feb 08, 2016 1:35 am

I don't know. When I read it I thought you might have had a DWI!

Ant · Post by **Ant** » Mon Feb 08, 2016 4:35 am

Nope, voltage is the same, so there is nothing else to do.

Madman Lighting · Post by **Madman Lighting** » Mon Feb 08, 2016 7:35 pm

Ant is correct. Bigger batteries just last longer because they have more reactants in them.

If you change battery TYPE then the voltage will change.

For example: if you change from Alkaline to NiCD (and it was 15 years ago) then the total voltage of the battery stack would be reduced slightly.

But, its now and all the modern AAA cells have the same voltage as the AA cells, regardless of chemistry.

Anyone want to try an IRON battery?
https://en.wikipedia.org/wiki/Nickel%E2 ... on_battery

Kylwell · Post by **Kylwell** » Mon Feb 08, 2016 7:43 pm

That what I figured. Off to Mouser!

Paulbo · Post by **Paulbo** » Sat Feb 20, 2016 4:27 pm

Go with C or D cells! You'll have plenty of life then. :-)

Kylwell · Post by **Kylwell** » Sat Feb 20, 2016 6:03 pm

I'd have to make extreme alterations to the case for that.