May RVs get by just fine on inverters rated between 20 watts. Don’t forget to account for appliances or things you may power all at once! An Inverter Calculator such as the one found here can also help you determine how many watts your inverter will need to handle. You can determine watts by multiplying the number of amps that an appliance requires by 120. Electrical appliances and devices have a corresponding rating. What you’ll need depends on what you’ll be using in your RV. Once you decide on the type of inverter, you should next consider the power capacity. We’ve already covered this, but first, you’ll want to decide whether you’re going to need a pure sine wave inverter or a modified sine wave inverter. When choosing the right RV inverter, you’ll want to consider a few things. Choosing the right RV inverter Image source: Anything more, and you might start running into issues. Still, you can get by with running a modified inverter if you are only planning on running the simplest of electric systems, like an old CRT TV or water pumps. Appliances with digital clocks or electronic timers.Appliances with AC motors like refrigerators and microwaves.If you plan on powering any of the following, you’ll want to spend the extra money on a pure sine wave inverter. Pure sine wave inverters produce electricity that is cleaner, smoother, quieter, and more efficient than modified inverters. Modified sine wave inverters are less expensive, but they are also less compatible with today’s technology and appliances. As technology has advanced, pure sine wave inverters have been able to transform the power into a smooth, almost-perfect sine wave that more closely resembles what comes through our utilities. We won’t get into all the physics behind it, but modified sine wave inverters transform the DC power to AC power by creating a blocky electric signal. When inverters first came out, they were modified sine wave inverters. There are two main types of inverters on the market today: Doing so will simply drain your batteries. Never run your inverter and converter on at the same time. A converter is a separate device that may be on your RV and turns AC power into DC power for your fans, lights, and pumps. NOTE: You may have also heard about an RV converter. This makes it a crucial part of your electrical setup, especially if you plan on dry camping or utilizing solar power. It does this by taking 12-volt DC power from your RV deep-cycle batteries and inverting it to 120-volt AC power. This means that when you’re at a campsite off-grid without a generator, your electrical capabilities are a little different than if you’re at a campsite with hookups.Īn inverter, however, allows you to utilize your appliances, even when you’re not hooked up to shore or generator power. You’ll get AC power to your RV only if you’re connected to shore power or a generator. Appliances typically do not run on DC power. On an RV, your water pump, lights, and fans typically run on DC power. DC power: Direct current power, on the other hand, is what is stored in batteries and runs at a much lower 12-volts.This powers anything you plug in, such as appliances. This is the 120-volt power that travels via power lines and comes in through your outlets.
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