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Templar1's avatar
Templar1
Explorer
May 25, 2015

Inverter Generator VS Regular Generator

I am considering purchasing a portable generator for our extended dry camping trips. I plan on getting a solar panel set up eventually, but for now I am looking at generators. I know that if I intend to run my A/C I'll need 3000watts, and if I just aim to plug the trailer in to it to charge the batteries I'll need 2000watts. What I am trying to figure out is what the draw back of using something like a Champion – 4000 W Portable Gasoline Generator instead of an Inverter generator like the ones Champion, Honda and Yamaha make.

I know that if I was going to be running something sensitive like a lap top the inverter generators are better, but if my main goal is to power up the converter to charge the batteries will the cheaper non inverter one work? Am I risking the trailer electrical system in I choose the cheaper generator?

Templar!
  • If I were to purchase a generator it would be a Champion 3100 inverter generator.

    Is a Honda or Yamaha better? I think they are but for limited use the Champion would work just fine for a lot less money.
  • There are some interesting misconceptions here.

    The 120v only version of the Champion has a pretty clean sine wave, it runs at 68 db, 3 db louder than the Honda Handi/ Champion 3100i under load and closer to a pair of 2000w running a A/C. A sound tent will reduce the db to 65.

    That said, I own one and would never consider running it in a dry campground. It's simply too loud as are all generators in my opinion. I would buy the quietest thing I could find if I knew I was going to have to. It is also a thirsty beast while running the A/C, more that a few hours mid day and I'd want hook ups.
  • Templar1 wrote:
    I am running 2 6 volts and I have a 1000w generator. When the batteries are discharges the converter draws too much and the generator can't handle it, and the battery charges I've found locally don't put out enough to effectively charge the battery. I agree about the noise, I find my little generator annoying. I can borrow my Dad's generator which is a Champion for our trip and see how it does. I am also being conscious about weight because I am running pretty close to my GCVWR as it is and the inverter generators appear to be lighter.


    I forgot to mention. I don't charge my 2, 6-volts through the converter since it is old & useless. I use a stand alone "smart" battery charger.
  • First of all, laptops and cell phones really are not sensitive to voltage or frequency anymore, as they run on 19 volts DC or other DC voltage. Laser printers do not like modified sine wave power, but ink jets do not care if it is MSW or pure sine wave inverters.

    Solar panels are great, and probably less expensive to run than buying a noisy and heavy generator. Weight wise, they have the generator hands down, same with noise.

    The Champion or any inverter found at Costco or Home Depot, they are considered 'contractor grade generator' and while they will make great 60 Hz sine wave power, they are NOISY - like 85 - 100 Db. A car at idle should be around 60 Db, while a really noisy diesel truck might be around 90 Db while on the freeway.

    I would recommend a pair of Honda 47 pound generators and they are easy to carry, make 2000 watts each for a few minutes, and 1,600 watts all day long. They can be paired together when you want to run the A/C unit.

    I have heard that a 3000 watt Honda will not 'restart' a rooftop A/C on a hot day, once the compressor has been running, and then shuts off for say 8 minutes, the start up draw was more than this size generator could handle. I guess on a 85F day the amps will be a bit less, but still it is taxing the generator.

    I have not heard concerns about a pair of Honda 2000's restarting a rooftop A/C unit.

    Inverter generators have another advantage. They can have a very compact high voltage alternator, and run at a low RPM, so they are very quiet. The high voltage alternator can make say 3 amps at 600 volts, so it will not require more than about 1 pound of copper windings. Compared to a 4,000 watt generator making 120 volts it must have wire rated at 40 amps (for that surge start) and is about 20 pounds?.

    The typical Onan RV generator runs at 3,600 RPM, is air cooled, so the cylinders that are the noisy part of a generator have a fan blowing air across that into the surrounding area. This makes them really noisy. A Honda 2000 can run at 900 RPM under minimal load, and is really quiet.

    Also that Champion generator rated at 4,000 watts will be 90 - 120 pounds. Not something that I can pick up on a regular basis.

    http://www.mayberrys.com/

    As for solar, you can buy a pair of 140 watt solar panels at $229 each from this place. SunElec.com

    Add a charge controller rated at 30 amps for about $35, and you only need to add wire, mounts, and install it.

    Your RV consumes 35 AH daily just to run the CO detector, propane leak detector and refrigerator. That is about what one of my 120 watt solar panels can make in 1 day.



    Fred.
  • I am running 2 6 volts and I have a 1000w generator. When the batteries are discharges the converter draws too much and the generator can't handle it, and the battery charges I've found locally don't put out enough to effectively charge the battery. I agree about the noise, I find my little generator annoying. I can borrow my Dad's generator which is a Champion for our trip and see how it does. I am also being conscious about weight because I am running pretty close to my GCVWR as it is and the inverter generators appear to be lighter.
  • You don't need a 2000 watt generator to simply charge batteries, the one I use works fine 1500/1200 Champion. It is a small open frame, but is actually pretty quiet.

    AMAZON

    As far as an inverter type & maybe getting a larger generator, take a look at this one & check out the others while visiting the site.

    Champion 3100 Inverter
  • Templar1 wrote:
    ... but if my main goal is to power up the converter to charge the batteries will the cheaper non inverter one work? Am I risking the trailer electrical system in I choose the cheaper generator?


    Sure ... if you AND your neighbours can stand the racket. :E
  • A regular generator is fine.

    The problem is mostly with stand alone Inverters that are modified sine wave.

    The advantage to inverter generators are that they can be run at lower rpm and still put out the correct voltage. Standard generators always run at the same rpms, eating more gas and can be louder.