Quote:
Originally Posted by talk2cpu
I figured it out, someone thought that the 12 volt power circuit should not be active when the truck ignition is off. [emoji144] Saves me from having to install the isolater.
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They're correct, quick way to run a truck battery down. With the ?motor not running you are equalizing not charging.
So is it charging the trailer battery while the truck is running.... your original question....
Javi