Does shore power charge coach batteries?
If your rig’s chassis battery (or batteries, in larger motorhomes) aren’t charged by shore power, which is more common in smaller rigs, they’ll only be charged by the alternator when the engine is running. Before you plug into the nearest shore power outlet, it’s crucial to protect your RV’s electrical system!
Can I disconnect my RV battery when plugged in?
The disconnect should be turned off when you store your camper so your batteries discharge more slowly. Doing that when you are plugged into shore power also disconnects your batteries from the charging circuit of your power, meaning that even if the rig is plugged into shore power, your batteries will not charge.
Why are my coach batteries not charging on shore power?
The coach batteries are not being charged when I’m connected to shore power. I’ve verified this by measuring the voltage at the battery terminals when on shore power. There is no change in voltage when I connect to shore power.
Why are the batteries on my coach going dead?
The engine alternator was simply providing the DC voltage while the engine was running. Regardless of the brand of motorhome, the brand and type of converter/charger installed and whether or not any disconnect devices are employed, it’s obvious the batteries are not receiving a charge while the coach is plugged in to shore power.
What is the voltage of a coach battery?
The cables labled S and I are from the rocker switches inside the RV that activate the disconnect relays. When activated, the relays connect coach and chassis power to the RV. The voltage in and out of each relay was 12.3V, the same with and without shore power.
What happens to the battery when shore power is disconnected?
That set of wires will carry current into the battery and out of the battery. So the same wires will provide power to the DC circuits when shore power is disconnected and receive power from the converter to charge the battery while connected to shore power.
The coach batteries are not being charged when I’m connected to shore power. I’ve verified this by measuring the voltage at the battery terminals when on shore power. There is no change in voltage when I connect to shore power.
The engine alternator was simply providing the DC voltage while the engine was running. Regardless of the brand of motorhome, the brand and type of converter/charger installed and whether or not any disconnect devices are employed, it’s obvious the batteries are not receiving a charge while the coach is plugged in to shore power.
The cables labled S and I are from the rocker switches inside the RV that activate the disconnect relays. When activated, the relays connect coach and chassis power to the RV. The voltage in and out of each relay was 12.3V, the same with and without shore power.
What happens to batteries when plugged in to shore power?
When plugged into shore power at the campground, presumably the AC to DC converter will charge the auxiliary battery bank. All the lamps, fans, water pump, etc., still operate on 12-volts DC, just that the DC electricity is provided by the converter instead of the batteries while plugged in.
