TL;DR: The precharge sense resistors need to be 2kohms or less total for it to work with our motor controllers. If both motor controllers are in parallel, and we only use one motor controller interface (which is the plan) then I would even suggest that we target less than 1kohm of precharge resistance instead. Note: James said we plan to use 300 ohms for the next revision anyways, so we should be good.
Precharge had been verified to work with a film capacitor pack with equivalent capacitance of about 520uF (4 paralleled 130uF film caps), but had run into issues executing when connected to the motor controllers. What would happen is that the precharge circuit would not conclude with the latch out closing the relay and ending the precharge sequence. It however, worked flawlessly with the capacitor pack, so some debug was done to see what was going on.
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