How to Choose the Best 50 Amp RV Generator

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Hitting the open road in your RV offers incredible freedom. Exploring new places, setting your own schedule… it’s fantastic. But to truly enjoy that freedom, especially in larger rigs, reliable power is key. That’s where choosing the best RV generator, specifically a 50 Amp RV generator, comes in. It can feel daunting with all the options, but this guide will walk you through everything you need to know, making the process much simpler and helping you figure out exactly how to choose a 50 amp RV generator that fits your needs like a glove.

First Things First: What's Your 50 Amp RV Power Requirements

Getting a solid handle on what your RV actually needs right is the foundation for making a smart purchase, ensuring you don’t end up with too little power or waste money on too much.

What Does "50 Amp Service" Mean?

So, what does “50 Amp Service” really mean for an RV? Unlike smaller 30-amp setups, a 50-amp service is actually a 120/240V split-phase system. It’s like having two separate 120-volt, 50-amp circuits coming into your RV. This gives you a potential total of 12,000 watts (50 amps x 120 volts x 2 legs = 12,000 watts). This robust setup is why larger RVs can comfortably run multiple high-draw appliances simultaneously, like two air conditioning units, a microwave, electric water heater, residential-style fridge, and more. Knowing this potential is great, but you need to figure out your specific 50 amp RV generator wattage requirements. Why? Because trying to run too much stuff on an underpowered generator will trip its breaker, leaving you in the dark.

How to Calculate Your Actual Wattage Needs

Here’s how to get a good estimate:

List your must-have appliances. Jot down everything you plan to run at the same time on generator power. Be realistic during this process; for example, think about a hot day: probably two AC units, the fridge, maybe the microwave for a quick meal, lights, and the TV.
Find starting vs. running watts. Appliances with motors (like air conditioners, refrigerators, and even some microwaves) need a big surge of power to start up (Starting Watts) but then settle down to use less power continuously (Running Watts). Your generator needs enough starting watts to handle that initial jolt, and enough running watts to keep everything humming along. You can usually find these numbers in your appliance manuals or sometimes on the appliance label itself. If not, general estimates are available online.
Calculate your peak wattage. Add the highest starting wattage item (likely an AC unit) to the running watts of all the other things you expect to run simultaneously. This gives you the peak surge your generator must handle.
Calculate your continuous wattage. Add up the running watts of everything you plan to have on continuously (e.g., two ACs, fridge, lights).

The Generator “Sweet Spot”:

Now you know what you need - look for a generator for 50 Amp RV use that has:

Running Watts comfortably above your calculated continuous needs (add a 10-20% buffer for safety and generator longevity).
Starting/Peak Watts that meet or exceed your calculated peak demand.
For true 50-amp capability, especially running two ACs, you’ll often need a generator with at least 5,500-6,500 running watts and 7,000+ starting watts. Don’t just look at the biggest number on the box; running watts are key for sustained use.

Key Factors to Consider When Comparing 50 Amp RV Generators

Alright, you know roughly how much power you need. Now for the fun part – actually comparing different 50 Amp RV Generator models. It’s easy to get lost in the specs, so let’s focus on what really matters for RV life.

Power Output (Wattage)

We just covered this, but it bears repeating: verify the Starting/Peak Watts and Running/Rated Watts. Make sure they align with the needs you calculated. Don’t be fooled by marketing numbers; focus on the rated running watts for continuous power.

Generator Type - Inverter vs. Conventional

This is a big one for RVers.

Feature	Inverter Generators	Conventional Generators
Power Quality	Produces "clean" AC power (pure sine wave)	Power quality can be inconsistent
Noise Level	Significantly quieter	Louder due to constant speed operation
Fuel Efficiency	More fuel-efficient; throttles engine speed based on load	Less fuel-efficient; runs at constant speed (3600 RPM)
Cost	Higher upfront cost	More affordable
Best For	Sensitive electronics (laptops, TVs, etc.)	General use, construction sites
Recommendation	Highly recommended for RV use	Good for budget-conscious users

Fuel Type - Gas, Propane, or Dual Fuel?

Fuel Type	Advantages	Disadvantages
Gasoline	- Widely available- Maximum rated power output	- Fuel goes stale quickly- Cumbersome storage
Propane (LPG)	- Burns cleaner- Long shelf life- Can use onboard tanks	- Less energy-dense (10-15% less wattage)- Refilling may be inconvenient
Dual Fuel	- Flexibility to use both fuels- Versatile for extended trips	- Typically higher cost- May require additional fittings

Noise Level (Decibels - dB)

Seriously consider 50 amp RV generator noise levels (dB). Campgrounds often have quiet hours, and even when they don’t, nobody (including you!) wants to listen to a roaring engine all day.

Inverters usually hum along between 50-65 dB (like conversation).
Conventionals often roar at 70-85+ dB (like a lawnmower).
Check the dB rating (usually listed at 23 feet away, at quarter load). Look up quiet 50 amp RV generator reviews for real-world experience

Size, Weight, and Portability

A 50 Amp Generator for RV use needs to be manageable.

Check dimensions. Will it fit in your truck bed, RV storage bay, or on a carrier rack?
Check weight. These often weigh 150-250+ lbs. Can you realistically move it?
Look for models with built-in wheels and sturdy handles. Even a theoretically lightweight 50 amp RV generator is still pretty hefty. A good portable generator for RV life needs to be movable.

Runtime and Fuel Efficiency

How long do you need the generator to run between fill-ups? Look at the runtime specs (usually at 25% or 50% load). Bigger tanks help, but 50 amp RV generator fuel efficiency (where inverters shine) is key, especially for boondocking or overnight runs.

Outlets

This is non-negotiable for powering your whole RV easily. The NEMA 14-50R outlet is a must-have. It’s the specific 4-prong plug matching your 50-amp RV cord. Without it, you can’t directly connect your RV for full power. Regular 120V household outlets, maybe a 30-amp RV plug (TT-30R), and USB ports are handy bonuses are nice-to-have, to achieve versatility and charge devices directly.

Handy Features

Consider these conveniences listed in many 50 amp RV generator buying guides:

Electric/Remote start. Push-button start beats yanking a cord any day. A remote fob is even better. An electric start 50 amp RV generator is a back-saver.
CO sensor is a vital safety feature that shuts the unit down if carbon monoxide builds up.
Fuel gauge/hour meter allows you to easily see fuel level and track when maintenance is due.
Low oil shutoff protects the engine from damage if oil runs low.
Parallel ready lets you connect two smaller generators (usually identical inverters) for more power, though less common for getting primary 50A power.

Budget

50A RV generator prices range widely. Inverters and dual-fuel models cost more. More features add to the price. Figure out your budget, but view it as an investment in your RVing comfort and capability. Find the best value by balancing cost against the power, quietness, and features you truly need.

Certifications

EPA means it meets Environmental Protection Agency emission standards. CARB is required if you live in or plan to travel extensively in California (California Air Resources Board compliance). Many generators are “50-state compliant.”

After the Purchase - Safe Operation and Maintenance of Your RV Power Generator

Using and maintaining 50 Amp RV Generator correctly is crucial for safety and longevity.

Safety First

Ventilation is KING: NEVER, EVER run a portable generator inside your RV, in storage bays, garages, or any enclosed or partially enclosed space. Generators produce deadly carbon monoxide (CO). Always operate it outdoors, far away from doors, windows, and vents, ensuring exhaust points away from your RV and any neighbors. Use a battery-operated CO detector inside your RV. Consider basic grounding practices as recommended by the manufacturer.

Routine Maintenance

Like any engine, your generator needs TLC. Follow the manufacturer’s schedule for:

Oil changes (often after the first ~20 hours, then every 50-100 hours).
Checking/cleaning/replacing the air filter.
Checking/replacing the spark plug.
Using fuel stabilizer if storing gasoline for extended periods.
Periodically running the generator under load (e.g., monthly for 30 mins) to keep things lubricated and the battery charged (if electric start).

Useful Accessories

Consider investing in a generator cover for protection when not in use, a heavy-duty 50-amp extension cord if you need to place the generator further from the RV, and perhaps a security cable or lock to deter theft.

FAQs about 50 Amp RV Generators

Q: Can I use a 30 Amp generator with an adapter for my 50 Amp RV?

Yes, you can connect it using adapters (“dog bones”), but you will be limited to the 30-amp generator’s output (around 3,600 running watts). You won’t be able to run nearly as many appliances simultaneously – likely only one AC unit and fewer other high-draw items. You’re essentially turning your 50-amp RV into a 30-amp RV while on that generator.

Q: Are inverter generators worth the extra cost for RVs?

For most RVers, yes. The significantly quieter operation, better fuel efficiency, and cleaner power safe for electronics make them a worthwhile investment for comfort and protecting your gear, despite the higher initial price.

Q: Do I need to ground my portable generator?

This is a complex topic with differing opinions and regulations. Many modern portable generators have a “floating neutral” and are considered bonded internally for certain use cases. However, always consult your generator’s manual for specific grounding instructions. When in doubt, or for added safety, grounding the generator frame to a ground rod is often recommended, especially if connecting directly to a home transfer switch (less common for typical RV use).

Power Your RV Adventures with 50 Amp Generator Confidently

Choosing the best 50 amp RV generator is achievable now that you understand your needs and the key factors. Consider wattage, generator type, noise, and fuel to match your RVing style. You can now confidently compare options beyond the marketing hype. Investing wisely means reliable power for AC, refrigeration, and all your gadgets, bringing more freedom and flexibility to your adventures. Choose well and enjoy the road!