Forum Discussion
Artum_Snowbird
Jul 31, 2014Explorer
I believe you could do better with heavier wire from the truck to the TC, but not sure what you already have. Some have gone up to No. 2 for the positive and negative leads.
When you look at a wire circuit, each part of the circuit consumes some of the available voltage. This is voltage drop. A thin wire is more resistant than a thick one, so a thin wire has more voltage drop. That means less voltage available to charge through your converter, and run your fridge.
After a night, your battery is low, and those positive and negative charge lines are fully loaded from the truck alternator to your camper battery. Take your voltmeter, and see what the voltages across the two batteries is with the truck running. Compare the two voltage readings. Then take a long set of jumper cables and connect between the two batteries under the same conditions. Measure the voltages now. That is the improvement you could get with heavier cables.
When you look at a wire circuit, each part of the circuit consumes some of the available voltage. This is voltage drop. A thin wire is more resistant than a thick one, so a thin wire has more voltage drop. That means less voltage available to charge through your converter, and run your fridge.
After a night, your battery is low, and those positive and negative charge lines are fully loaded from the truck alternator to your camper battery. Take your voltmeter, and see what the voltages across the two batteries is with the truck running. Compare the two voltage readings. Then take a long set of jumper cables and connect between the two batteries under the same conditions. Measure the voltages now. That is the improvement you could get with heavier cables.
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