Charging the camper battery when driving
I'm trying to wrap my head around this one. We just finished up a weekend at a campground about 3 1/2 hours away. When we're pulling out, I switch the fridge over to 12v to keep it cold. I had the hit...
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Well that last post was helpful :R
I agree with this. First step is to confirm the battery is receiving a charge with the vehicle running. If this test passes, then consider the size wiring you used from battery to your trailer plug. Here's a sample voltage drop calculation for 20 feet of 10 awg wire, 10 amps of 12volt dc load. I'm guessing at the 10 awg wire, but you can adjust for what you actually used.
Voltage Drop Calculator
That gives about .4 volts drop, enough to have an impact on charging for sure.
EldIr wrote:
Start the tow vehicle. Should be a big jump in voltage. From the 12.5v range to the high 13's or 14v. If not, the tow vehicle is not providing power to the trailer.
I agree with this. First step is to confirm the battery is receiving a charge with the vehicle running. If this test passes, then consider the size wiring you used from battery to your trailer plug. Here's a sample voltage drop calculation for 20 feet of 10 awg wire, 10 amps of 12volt dc load. I'm guessing at the 10 awg wire, but you can adjust for what you actually used.
Voltage Drop Calculator
That gives about .4 volts drop, enough to have an impact on charging for sure.
