Does anyone make a voltage regulator that can show volts and amps? Basically something that would plug into my charger power supply and have a screen showing volts/amps and a knob to adjust it. I have a separate power supply that shows this already, but I would like to try and find one that could plug into my charger power supply to regulate voltage for tools/brushed motors.

this I think will at least show you what you want to see. I think you could make a regulator pretty easy with a few parts from radio shack and a quick google search.
http://epbuddy.com/index.php?main_pa...products_id=42

Thanks man that looks pretty good. I can probably find some sort of potentiometer somewhere, I did email the guy that built my regulated power supply to see if he had or come make something for me.

Some chargers have a motor drive feature. The old ICE had it, adjustable voltage with amp reading and a timer control. Up to 8 volts and 8 or 10 amps I think, don’t remember for sure.

Among current chargers iChargers have it, with more power depending on model. Up to 15V and the amp rating of the charger I think. Might be worth checking out, would be an all in one deal with a solid charger too.

Try something like this;

http://search.jaycar.com.au/search?w=qp5586&view=list

http://www.jaycar.com.au/productView.asp?ID=QP5588

Some of the car audio installers have similiar products too.