It feels kind if dumb to see such configuration and I have worries If I drain small 12v battery by using car with engine off It wouldn’t start…

  • deliux@discuss.tchncs.de
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    1 year ago

    Well in a technical sense you are also right, since the contactor for the main battery gets power from the 12v (albeit it’s not a big load) Meaning if the 12v is completely dead the hv battery will not switch on and the motor will not start.