Electronics > Projects, Designs, and Technical Stuff
Batteroo testing
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amspire:

--- Quote from: EEVblog on December 20, 2016, 01:06:05 pm ---Who sells those AAA to AA battery adapters in Sydney?
I thought Jaycar used to have them, but can't find on their website.



--- End quote ---

They used to be easy to find, but I cannot see any in Australia right now. Easy to get on Aliexpress, Bangood, Deal Extreme, etc.

You could look at using this as an adapter:

https://www.jaycar.com.au/1-x-aaa-pcb-mount/p/PH9261

The length is the same as an AA battery and the width slightly less.
amspire:
A better solution would be to make a sleeve and an anode extension (with a bit of brass rod) using polymoph plastic.

https://www.jaycar.com.au/polymorph-pellets/p/NP4260

This is hand moldeable at 60 degC but when it cools it is like nylon. It is very strong.

The reason why it is probably a better solution is that you can fashion and extender that can accommodate the Batteriser and it can fit in a way that will not damage the Batteriser +ve contacts. Leave the negative contact uncovered.

It takes a bit of skill, but this stuff is magic. To make it bond permanently with the brass rod, just make sure that both the rod and the polymorph plastic heat up to over 60 degC together (ie chuck it in a cup of hot water until you see the polymorph plastic turn transparent.)

If you are molding over another object (like a battery), as long as the object doesn't reach 60 degC, the polymorph plastic will not stick.
Fungus:

--- Quote from: EEVblog on December 20, 2016, 01:06:05 pm ---Who sells those AAA to AA battery adapters in Sydney?
I thought Jaycar used to have them, but can't find on their website.



--- End quote ---

Isn't this exactly the sort of thing 3D printers are for?
razvanme:
I think you guys are overdoing things.

http://www.instructables.com/id/Make-a-AAA-battery-work-as-a-AA-battery/?ALLSTEPS

Paper + Adhesive tape + Aluminium foil. 5 minutes.

Also is this thread going off topic?
FrankBuss:
And of course there is something at thingiverse:

http://www.thingiverse.com/thing:84337

But a professional adapter would be better, otherwise Batteroo could say that it stopped working because of the adapter. I guess they might even say you are not supposed to use AAA batteries in AA devices, but then they may counter with another story of poor snails trapped in wells anyway, and you have no chance with facts.

Still on topic to discuss if it is valid to use an AAA to AA adapter and which one.
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