I am mystified. I have a 4 cell config. drawing a total of 15 amps. Vehicle is a 2007 malibu V6. Idling cold, the units draw 15 amps, but after about 3-5 minutes, the amps spike and blow a 30 amp fuse or trip my 30 amp circuit breaker.
There are no shorts, and I have measured the draw at the circuit breaker (both sides), the relay, and at the electrolyzers.
I just upgraded my battery to a 775 amp hr from a 575.
I somehow think that I am getting a spike when the alternator kicks in, but I am not an electrician.
My wiring is 10 gauge awg.
Without a fuse or circuit breaker, I can run the unit for an hour without a problem and the amp draw creeps up to about 25 amps.
Any input on this problem would be greatly appreciated.