- Connect a wire to the positive connection on one of the RV batteries. Connect the opposite end of that wire to the positive connection on the other battery.
- Connect a wire to the negative connection on one of the batteries. Connect the opposite end of that wire to the other battery’s negative connection.
Also question is, does a 7 pin trailer plug charge battery?
You can put a maintenance charge on your trailer battery with the 12 volt accessory circuit of the 7–way. The 1:00 position of your 7–way carries this circuit. You would just need to run a length of 10 gauge wire like part # 10-1-1 (sold by the foot), from this pin to the positive terminal of the battery.
One may also ask, how do you charge a trailer battery while driving? You may be able to use the existing 12V feed at the back of your truck to charge your trailer battery while driving but you will need to install a battery isolation solenoid to disconnect this line when the tow vehicle is off. Otherwise your trailer battery could drain the battery in the tow vehicle.
Likewise, does plugging in your trailer charge the battery?
Whenever the RV is plugged in the coach battery is being charged. It’s really just a trickle charge, but over time it can deplete the electrolyte levels in the battery cells. You need to check, or have somebody check the battery at least monthly when the RV is plugged in during storage.
Can I plug in my camper without a battery?
Most things inside your RV will not work without a properly functioning 12-volt DC house battery system. That is where your RV’s power converter is used. When plugged into shore power, this device is converting 120-volt AC power into 12-volt DC power.