Home-brew battery measuring station

[himalaya]

Great thinking Brian.

I am worrying about the MMM's input decoupling capacitors, you are pushing them really hard by this app.

IMO a programable(or just use a potentiometer to adjust) linear current source would be just fine for this application. just get a few power MOSFETs mounted on a HUGE fan-cooled heatsink, drive them with an Opamp connected as a current source, that's it.

You know what a stable and constant current means for a battery test platform, right?