I'm looking for an instrument that isn't too spendy, and will automatically graph multiple charge and discharge cycles on a battery pack.
I need to be able to set the current to tens of mA through amps on discharge. Ideally a programmable current over time so I can emulate real world loads.
I need it to run without PC connection, though setting up for the test is fine with PC or phone (android) software.
I've seen a lot of options, but they are either half the solution, or very pricey.