[Kevin Sevcik]

Originally Posted by teslalab2

You can put the jaguar in current control mode. At this point I haven't been able to get feedback working reliably, I need to do more experimenting with the acknowledge protocol. every now and then it will return a random packet with some unknown information. I need to figure out a way to deal with that.

I don't think a jag could take the current necessary to test batteries, correct me if I am wrong here. but those batteries could supply hundreds of amps, and current mode requires tuning a PID. Again correct me if I am wrong here, I think battery testers just short out the battery's with a know resistance, and then measure the voltage. too much v drop over a short bit of time would indicate the battery is no good

I am thinking about using current mode to control a large heated bed on my 3d printer

I've got one of the West Mountain Radio battery analyzers, and it can only handle 100W. So about 7.5A on a 12V battery. A 0.35 ohm resistor would limit you to 30A at a 10.5V cutoff voltage, and 38A at 13V. I'm mostly interested because it would make testing 4 times faster and also closer to actual FRC loads.