I'm in the process of making a wall powered battery adapter. I'm surprised that something like this does not exist already on the market or if it does I have not found it. (If anyone knows about such a thing please let me know.)

 

I have a digital voice recorder and I mostly use it in one location and it's very important that it does not die on me during use. It does not provide a jack to plug an adapter in so I'm forced to create something instead. I have my design already made up. I'm making some pseudo batteries out of a dowel and some fuses for contacts. It normally takes two AAA batteries in parallel.

 

My question is this: How much wattage or ampacity should I expect my wall unit to provide to replace the batteries?

 

The one I have in mind is rated for 750ma and will be replacing two AAA batteries in parallel.

 

Thanks in advance!

That depends on where you are.

 

http://en.wikipedia.org/wiki/Power_outlet

Actually it doesn't. I'm asking how much wattage or ampacity do AAA batteries supply. Or how much wattage or amperage do small electronics typically demand of such batteries.

depends on where you are. different countries use different voltages therefore you would require different currents to provide similar amounts of power. you really need to tell us what system you use (115 VAC, 230 VAC, etc.)