Jeepsterfreak
Well-Known Member
Good to know. I was thinking this could be verified with a volt meter by comparing voltage with and without the battery tender connected to the main battery leads. You can take reading from N1 and neg post on main battery with and without tender connected. If you see voltage increase at N1 when the charger is connected to main battery then you know it’s charging the aux battery as well.I need to add a note to this diagram that when everything is working correctly, the batteries appear to be connected in parallel, except when auto stopped. Trickle charging and jump starting should work from the main battery.
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