By Lazydays

No matter what model of RV you have, from a pop-up camper to a Class A motorhome, it is important to know the basics of how the power supply system works.

Modern RVs use a range of systems to supply power to the appliances, engine and other components. Each has its own maintenance requirements and operating procedures that RVers should be aware of.

The RV service experts at Lazydays RV are here to help provide RVers the ultimate guide to RV Voltage Systems. The following videos, featuring Lazydays RV master-certified technician Mark Smith, cover everything you need to know about RV voltage:


RV batteries are a critical component on all types of RVs and motorhomes. They store the electrical power that is needed to run crucial systems like your RV generator and engine. RV batteries can be broken down into two types: wet acid and AGM.

Wet acid batteries are the most common type of RV batteries, and relatively inexpensive, but they require the most maintenance. AGM batteries are costlier, but are great for active RVers who are on the road or using their RV often. Choosing what kind of RV battery to use comes down to how you use your RV. If you use your RV for only a few months out of the year, a wet acid battery will work great. AGM batteries are great for full-time or very active RVers as they are low-maintenance and require steady use. Lazydays RV has a wide selection of RV batteries, accessories and carrying boxes, and our RV service experts can perform battery installation and maintenance.


RV generators are your RV’s main source of independent interior power and allow you to do everything from watch TV to cook. They draw power from your RV battery, and most have a standard set of features and basic maintenance requirements. All RV generators have a start/stop switch and breaker located on the unit itself. RVers should operate their RV generator regularly to prevent it from dying, just like your RV engine or batteries.

The RV service experts at Lazydays RV can perform a range of RV generator maintenance services including installation and general repairs. If you are looking to upgrade or replace your RV generator, Lazydays RV has generators and accessories for most makes and models.

Shore Power

All RVs can plug-in to shore power when parked at an RV resort or campground. Shore power cords come in one of two types: 30-amp or 50-amp. Smaller RVs tend to have a 30-amp cord while larger RVs and motorhomes carry 50-amp cords.

Shore power is fed from the cord to your RV’s transfer switch, which is an automatic system that divides power between the shore and your generator. Lazydays RV recommends that RVers check if their transfer switch is protected, as improper shore power usage can damage your RV’s electrical system. Our service technicians can perform preventative measures on your shore power hookup to prevent any unwanted harm to your RV. Lazydays RV carries a range of power cords & adapters for your RV shore power needs.


Inverters are a complex system that do two things for your RV. The first is that it is the actual battery charger for when you’re plugged into shore power or the generator, the inverter provides the charging system for your house batteries. The second purpose of the inverter is to create 110v power for your appliances, when you’re not running the generator or shore power. Invertors are a must for RV’s with home refrigerators. Browse Lazydays RV Accessories and More for our full inventory of converters and inverters.

Solar Power

Solar power is an emerging technology in the RV industry and provides an additional power source for your RV batteries. Solar panels are a great addition for RVs as they can charge your RV batteries whether you’re on the road, storing your RV in-between trips or camping. Lazydays RV carries a range of solar charging panels and accessories, and our RV service experts can perform installation and maintenance.

Contact Lazydays RV if you have any questions about your RV voltage system or schedule a service appointment today.