![]() But during use, the piggy bank will empty quickly without being recharged by the power converter. This device takes your 12-volt DC power and converts it to 120-volts of AC power. When disconnected from shore power you can run your 12-volt lights, your water pump, your gas furnace, and even some electrical devices if you have an inverter. This situation may lead to systems not working properly! If the piggy bank is nearing empty, then the power converter will have a hard time keeping up with the demand when many 12-volt DC systems are being used. I think of the converter as the main 12-volt DC power system along with the house batteries, and that these batteries function as your backup, or the piggy bank if you will. When plugged into shore power this device is converting 120-volt AC power into 12-volt DC power. That is where your RV’s power converter is used. Stick with me here! I may be able to save you from a potential problem!įor your 12-volt DC house battery system to function, you need good batteries as well as a way to charge them. And this is where RV battery issues can occur because of a lack of understanding of how this system works, and its interaction with the 120-volt AC system. Now here is where the confusion sometimes occurs! Most things inside your RV will not work without a properly functioning 12-volt DC house battery system. They are hooked together in either a parallel or series combination to create a strong 12-volt DC source. This system is powered by either a 6 or 12-volt DC deep cycle battery combination. The third and most important electrical system in the RV is the 12-volt DC RV house batteries. It just may not be attached to the RV all the time! It does not matter whether the RV is a towable or a motorized unit, it still has this electrical system. This system controls your tail lights, marker lights, brake lights, electric wheel brakes, engine starter motor and dash accessories. The second RV electrical system in an RV is the chassis 12-volt DC (direct current) system provided by an auto battery. Please be aware of the amperage requirements of your RV when choosing a shore power source! And, on some RV’s you can create this electrical power source from an external or onboard generator. This electrical system will control the power needs of your major appliances and allow for charging of one or more battery systems. This electrical system becomes active when you either plug your RV into a fifty, thirty, or a twenty amp power source. Your RV has three electrical systems! First, you have a 120 volt AC (alternating current) electrical system known as your shore power. How Many Electrical Systems Does an RV Have? And, the RV battery is a big part of the electrical systems in an RV! ![]() It appears to be a lack of understanding of how an RV’s electrical system works. In traveling the country in our RV, and speaking with many folks about their RV problems, we find a common theme. With a little basic understanding, you will find that you can maintain the health of your RV’s 12-volt DC system and remain a happy camper! ![]() And some of these can make for a terrible RVing day! RV Battery issues are something that falls into this category. When it comes to enjoying all your RV has to offer, you also need to be aware of problems that can occur.
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