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hello
thanks for the good inf.
now I know why my batteries are not charging when we travel.
I have over 12 volts on left and right turn signal, tail and running lights. also, over 12 volts on the brake controller outlet when brake controller is set on ten and 6.76 volts when brake controller is set to 5.
should I get a voltage reading at the trailer brake drum with a bad battery on the trailer and the trailer is connected to the truck.
thanks.
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