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HomeAircraftHelicopterMain Discussion › Shopping for a 2000w power inverter. Honda or Yamaha
05-22-2018 01:38 AM  29 days agoPost 1
HawkNoob

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Pa

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Need a generator/power inverter for field charging. Can't seem to decide between the Honda vs Yamaha. Don't have any experience with either. Any thoughts?

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05-22-2018 02:15 AM  29 days agoPost 2
HeliMan Dave

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Suburban Chicago

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If you're going to get the 2000W model, the advantages of the Yamaha are:

1) It has an actual fuel gauge so you don't have to open the cap and remove the strainer every time you want to see how much is left.

2) One of the Yamaha's primary engine parts are metal where in the Honda it's plastic. (I can't remember what part but I think it was piston/camshaft related). Metal just seems to be more durable.

3) The Yamaha has an actual fuel shut off so you don't leave gas in the carb. This helps if you transport it inside your vehicle as I think the newest Honda (2200) has this feature now though.

4) The Yamaha comes with a DC cord for charging 12v batteries.

I had the EF2000iS myself (50lbs) but decided I wanted a lighter machine so I traded it in for the 1000W model (30lbs).

I've been VERY happy with it.

Logo 700 / 600 / 500 V-Bar NEO / Blade 180CFX / mCPX BL / Nano / V-Control

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05-22-2018 02:18 AM  29 days agoPost 3
HawkNoob

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Thanks for the feedback! Is the 1KW model enough for 12S 5000 packs charging at say 2C or 10 amps?

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05-22-2018 02:33 AM  29 days agoPost 4
HeliMan Dave

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Suburban Chicago

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I use a PowerLab DPL8 and Meanwell RSP-2000-24.

I can charge a 12s 5000 pack (2 6s-5000 simultaneously) at up to about 12 amps per side (just over 2C), so about a 20 min charge with the 1000W Yamaha. I have 3 packs ready for each heli and usually charge them at home the night before so once I'm at the field I can almost fly non-stop if I want to. There's really no need (for me) for 2000W as I don't want to charge my packs faster than that anyway. IMHO, the time gained is not worth it.

Logo 700 / 600 / 500 V-Bar NEO / Blade 180CFX / mCPX BL / Nano / V-Control

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05-22-2018 02:47 AM  29 days agoPost 5
grimthenoble

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Ketchikan, Alaska

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I repurposed 6 12 volt deep cycle batteries out of bad boy buggie. Enough juice to charge all day plus some! and you don't have to worry about the noisy generator. of course I have a enclosed trailer dedicated just for RC

Never go Full Retard!

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05-22-2018 03:16 AM  29 days agoPost 6
HawkNoob

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HeliMan Dave
I can charge a 12s 5000 pack (2 6s-5000 simultaneously) at up to about 12 amps per side (just over 2C), so about a 20 min charge with the 1000W Yamaha.
That answers my question! Thanks!

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05-22-2018 03:20 AM  29 days agoPost 7
fastflyer20

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N. Tonawanda, NY

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+1 on the Yamaha, its the same price as the Honda with a newer design and more features. Lots of Honda's around, nothing wrong with them if they were cheaper than the Yamaha or you find a deal on a used one. I have 90 hours on my Yamaha, added an hour meter to keep track of oil changes. It has hummed for years now.

There are some knock off inverter genny's that are gaining traction for 1/2 the price. Champion is one of them, they are showing some new models not yet available that are similar to the Honda's and Yamaha's. A few friends have the original model and all have been happy with them. My biggest fear of knock off's is long term durability and parts availability in the future.

I prefer 2000 watts since it is my back-up for power outages and has just enough for heat, running the fridge or coffee maker plus a few lights.

Tom
CAUTION - my posts are based on my experiences, yours may be different.

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05-22-2018 02:04 PM  28 days agoPost 8
Eury

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Dover NH

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I've owned both the Honda and Yamaha. Bought the Honda first because everyone wants a Honda generator. First time I tilted it putting it in the back of my Subaru and gas that was left in the carb spilled out making the mat in the car and the generator itself stink, I knew I made a mistake. THe mat was thrown out so the car didn't smell, but the generator always reeked of gas. No amount of cleaning would get it smell free enough that my wife would let me put it in the car without first wrapping it in a plastic bag. Turns out if I had known ahead of time that Honda's gas shutoff doesn't actually turn off the gas but rather the ignition (I really should have realized), I could have taken my brand new $1000 genny and added a fuel shutoff inside it so I could burn the gas out of the carb and then it would have been smell free.

It did run great, never had any issues outside of that. Being a Honda it also had great resale value when I came across a used Yamaha to replace it. The Yamaha runs just as well as the Honda and is as quiet, and has all the advantages stated above. Also, I can carry it in the car with 0 smell or risk of spilling. Wish I had just bought the Yamaha in the first place, because 5 years after I did buy it, I still can't think of a better generator.

Nick Crego

Citizen #0168

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05-22-2018 02:14 PM  28 days agoPost 9
wjvail

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Meridian, Mississippi

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There is a lot of good information here reguarding the both the Honda and Yamaha. However... Much of what has been said about the Honda may have been overcome by events. It appears Honda has released a new EU2,200.

I own the 2,000 and I'm very happy with it. I do not own the 2,200 so I can't recommend it based on experience. It may the generator we all want but I can't personally say that. I haven't seen one.

http://www.acmetools.com/shop/tools...e:&pageSize:24&

"Well, Nothing bad can happen now."

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05-22-2018 02:18 PM  28 days agoPost 10
gwright

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Champaign Il

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Have the Honda 2000 and love it. Used for a number of years. Had to get a larger generator because we bought a small camper last year and the 2000 isn't enough to start the A/C. Enugh to run it, while charging batteries but the start surge is too high. After several people recommended it I took a chance and bought a harbor freight predator 3500, the ultra quiet one. $699 at the time, now $749 https://www.harborfreight.com/3500-...ator-63584.html . 3500 , and it's as quiet as my honda 2000! Even has electric start too. I've used it for a few events now, has a couple hundred hours on it, and I wouldn't hesitate to buy another if needed. After sitting in the garage 5 months over winter, i hit the electric start and it was running in about 3 seconds. highly recommend. It is quite heavy, so difficult to lift in and out of truck to go to events, but they have a 2000 version for $500, like the honda and yamaha. https://www.harborfreight.com/2000-...tor-62523.html.

Gary Wright

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05-22-2018 02:24 PM  28 days agoPost 11
Richardmid1

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Leeds, England

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A decent 1000W geny will charge 6s at upto around 35A. You can charge 4x 6s 5000's in parallel at just over 1.5C or around 30 mins.

I used to have a little Kipor IG770, it could do 700W continuous and they are tiny and only weigh 10.5kg!

You can either have more packs and a smaller geny or a big geny and only a few packs. The choice is yours. Both Honda and Yamaha are top quality genys so personally ide just pick the cheaper of the two.

60% of the time, it works every time!

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05-22-2018 02:24 PM  28 days agoPost 12
gwright

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Champaign Il

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By the way, regarding your question about capacity. 12s charges to 52 volts, and 52 volts at 10 amps is 520 watts, so you could go almost 20 amps charge rate on a 1000 generator. I generally use three icharger 306's with parallel boards, so i can charge multiple packs on ea at once. six-6s/5000 at 30 amps for an hour gets three 12s setups going, or if I'm just charging two packs for a single 12s, at 30 amps, they're up in 15~20 minutes,.. per charger. That's 25.2V (charging 6s, using two batteries for a 12s machine) at 30 amps or roughly 750 watts, so I can have two maxed out and one at a lower rate, on the honda 2000, or all three full current, plus A/C and television in the camper, with the 3500.

Gary Wright

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05-22-2018 07:42 PM  28 days agoPost 13
Andy from Sandy

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Bedfordshire, UK

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Specs of 1kW generators are around 900Watt continuous output. Then you have to take into account the efficiency of the power supply and charger.
You cannot just do the maths on 1kW output giving you 19Amps at 52volts.

In order to get constant current at 19Amps will require a higher voltage output as well to consider.

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05-22-2018 08:21 PM  28 days agoPost 14
gwright

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Champaign Il

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Obviously, but it gets you in the ballpark.
Two 306's on 6s packs at 30 amps charge rate should result in 1512 watts and the honda says 1800 rated, with something over 2K surge. I know if I have two maxed out i can only charge at about 6 amps on the third charger (with 6s, more with lower cellcounts of course) or the 2000 won't handle it. Again,.. doing the math says that should only be 1663 but the genny says 1800 continuous. The 140 or so difference probably indicates the losses.

If you "just do the math", you get reasonably close. What I know from many years using the honda 2000 is the above numbers are accurately the max it has handled. Almost 8% loss. Not bad considering it's converting gas to 120 then power supplies are making 24v out of that, then the losses in the chargers themselves. Yes, sometimes it makes me wonder why we don't just put the gas in the heli to begin with

Gary Wright

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05-22-2018 08:49 PM  28 days agoPost 15
old nitroman

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Naples florida

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I have been using a Ryobi 2300 watt generator for years, much cheaper then the Honda and only 2dec, louder, full tank run all day, can handle anything I throw at it. Most at the field don't even know its running.

E5s and E7se,and a 766, Roban bell 222 800 superscale,450 bell 4 bladed head,gobby 380and 420 ,180cfx

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05-23-2018 10:48 AM  27 days agoPost 16
Richardmid1

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Leeds, England

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Richardmid1
A decent 1000W geny will charge 6s at upto around 35A. You can charge 4x 6s 5000's in parallel at just over 1.5C or around 30 mins.
I repeat.

60% of the time, it works every time!

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05-23-2018 11:32 AM  27 days agoPost 17
Ace Dude

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USA

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Power supply type and efficiency will play a large role as well. I highly recommend using a switching PFC power supply.

My Honda EU2000i was purchased in ~2010 and has over 500 hours on it without any issue. In recent years I'm averaging about 100 hours/year for field use.

  

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05-23-2018 04:37 PM  27 days agoPost 18
rcflyerheli

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Granbury, TX USA

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Somebody mentioned a Predator 3500w genset earlier and included a short statement about their 2000w version. I had an occasion to use the 2000w genset at my last event, having borrowed it from a buddy. My opinion is that it appears to be a pretty good generator for the money.

This unit is going on its second season, and starts and runs fine. It charged two 6s 5000 mah packs in parallel at 1C (10a) with no hiccups. I can't speak for the lifespan, but just from that one use, I'd consider it if my current Champion ever quits. It is much quieter than the Champion. and has a smaller footprint.

Goblin 700, Trex 700DFC, Gaui X7, Logo 690SX, Logo 600SX; Trex 470 Trex 500
Amain Team Rep

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05-25-2018 12:55 AM  26 days agoPost 19
HawkNoob

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Pa

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Thanks for all the input guys. In the end I decided to go with the Honda EU2200i. It is the newer model, now has the fuel shutoff to run the float bowl dry and the maintenance on it is very straight forward and well thought out for hassle free oil changes, air filter, spark plug and spark arrestor cleaning and maintenance.

"Since 1953, Honda has manufactured over 100 million power products worldwide. Honda continues to be a leader in the development of low-emission, fuel efficient, environmentally friendly 4-stroke engines for use in generators, water pumps, lawn mowers, outboard motors, and many other power equipment applications. In 2015, Honda celebrated a significant milestone: over 40 million satisfied Power Equipment customers in the United States. Honda Power Equipment products are assembled at 11 Honda manufacturing facilities around the world, including Honda Power Equipment Mfg., Inc., located in Swepsonville, North Carolina.

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05-25-2018 02:22 AM  26 days agoPost 20
Ace Dude

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USA

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I always use STA-BIL Marine 360 in mine and have never had any kind of gas related issue. I use the magnetic dip stick, Tiny-Tac, and Tac-Brac available on eBay.

http://www.hamradio.me/power-supply...hour-meter.html

  

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HomeAircraftHelicopterMain Discussion › Shopping for a 2000w power inverter. Honda or Yamaha
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