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HomeAircraftHelicopterHelicopter Main Discussion › Whats needed to charge at the field 10S/12S setups
07-14-2013 03:25 PM  5 years agoPost 1
HeliNutAndy

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worcester, MA USA

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I recently graduated to a model that requires at least a 10S pack and I'm not sure if I should purchase multiple packs or if I should buy 3 or 4 and charge them at the field. My question is what precisely would I need to be able to charge two 6S packs at once in 15 minutes or so so I can charge and fly/charge and fly? I currently own a 400 watt charger and a 540 watt power supply that I can charge a 6s battery at 16 amps tops. I want to purchase a Champion 2000 watt generator and was thinking of purchasing another 540 watt power supply and charger which would give me two chargers and power supplies. Would this get me to the 15 minute charge time on two 6s 5000mah packs that I need? I was also thinking of buying the new iCharger 4010Duo charger. I realize the Honda and Yamaha generators are better rated but I do not want to spend $1000 or more on a generator. What would be the maximum output the Champion can produce? Any help would be greatly appreciated. I do not want to spend a bunch of money and have to wait at the field etc...

TIA,
Andy

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07-14-2013 03:43 PM  5 years agoPost 2
Dr.Ben

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Richmond, VA, USA

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This is the concept of buying once or buying twice to get what you're going to end up with anyway.

The charger speaks for itself. Can't say more there or I will get pinked.

I saw/heard the Champion at a Fun Fly this weekend. It wasn't very quiet and was surging up and down under load. I would not put up with that for a minute.

You can get a Honda 2000 or a Kipor clone for under $1000 if you know where to look. Yamaha is of course nice too. I can pretty much guarantee you are going to end up with something of this quality level and sound pressure, so you just as well save yourself the hassle and loss of having to resell a POS to get what will make you happy. Remember; a quality generator is a decade+ investment that will have other applications. The buy-in hurts a little, but then you are done with it.

Ben Minor

Peak Aircraft/Team Minicopter Team Futaba Team Kontronik USA

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07-14-2013 04:22 PM  5 years agoPost 3
bmapope

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TN

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+1..what Dr. Ben said

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07-14-2013 04:29 PM  5 years agoPost 4
HeliNutAndy

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worcester, MA USA

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To get away from the generator or any name brands etc what would I need as far a specifications go to be able to charge two 6S packs or a single 12S in 15 minutes or even faster if possible without ruining my packs? I am a sport flier and I'm not sure if I want to dump thousands into charging equipment and the supporting equipment just yet.

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07-14-2013 05:25 PM  5 years agoPost 5
OldNewbie

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Middleville, MI

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Here is alternative to a generator if you have a vehicle that you can mount it in. I have two deep cycle batteries that are connected in series giving me 24V output. I have a Minn Kota on-board charger mounted that can charge both batteries independently without having to remove the series cable between them. I have two sets of leads so I can run two chargers at once, with no need for an additional power supply. In fact, you can put together this rig for the cost of a good power supply. Total investment is around $300. After charging packs all day just plug in the charger when you get home and you're good to go the next day. Takes me literally 20 seconds. If you want even more power and capacity they also make systems that can charge three or even four banks of batteries. And as an added bonus the db rating on it is 0.

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07-14-2013 05:25 PM  5 years agoPost 6
fla heli boy

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cape coral, florida

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I'm not there yet, but most likely will be. From everything I've researched, I'd go with a PL8.

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07-14-2013 05:30 PM  5 years agoPost 7
bmapope

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TN

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I have two 306 chargers on one 48 amp 24v power supply with a Honda 2000. I can charge two sets of 6s packs (4 batts) in 20 mins no trouble. It is around a 30 amp load at 2c charge rate.

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07-14-2013 05:57 PM  5 years agoPost 8
Manny1776

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Melbourne, Florida. USA

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Andy they are a lot of threats about this topic here is the lates
https://rc.runryder.com/t731981p1/
Sometimes you can find good deal on craiglist from people the buy generators for camping or hurricane season and them they selling....
Manny

Fly High, Fly Fun, Fly Secure.........Fly 3D!!!! Bavarian Demon USA Team

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07-14-2013 06:17 PM  5 years agoPost 9
unclejane

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santa fe, NM, USA

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My opinion on the generator - if it's gotten to that point, the gas needs to go into the helicopter itself and not a genny+charger+battery+on+and+on+and..... Just get a gasser - there are now several really nice ones on the market like the whiplash, etc. That gets rid of a lot of expensive equipment, cuts down the costs and pumps up the fun a long ways.

Else, a really good field setup is an iCharger 3010B and 2 deep cycle batts wired in series. You can go up to 30 amps there, which is 3C on a pair of 5200mah 6S batts. I can support a 12s 700 size electric with that until I'm literally sick of flying and want to go home.

A pair of wheelchair deep-cycles will be at or a bit under half the cost of the genny. They'll be silent and carry enough power to fly pretty much all day.

LS

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07-14-2013 11:18 PM  5 years agoPost 10
Dr.Ben

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Richmond, VA, USA

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2000 w will suit your needs and will chug along at a noise level no higher than pleasant conversation except when you are really charging hard.
Deep cycle batteries are fine but the investment of maybe half the generator will need to be repeated in 1/2-1/3 of the average lifespan of a quality generator. The only thing you minimize is the up front expense. I drive a Civic Coupe. A bank of deep cycle batts is not even remotely possible for those with smaller cars if you plan on carrying anything else. Gas models are fine for their place in the hobby and should be purchased for what they realistically offer, but considering one as a lateral alternative to an electric model's noise level, smoothness, and utter power is a very tall order indeed.

Ben Minor

Peak Aircraft/Team Minicopter Team Futaba Team Kontronik USA

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07-14-2013 11:46 PM  5 years agoPost 11
bmapope

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TN

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+1^^^^^^^

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07-15-2013 01:26 AM  5 years agoPost 12
unclejane

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santa fe, NM, USA

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Just seems like such a waste to me. Put gas into generator to make 120V to a PSU to step it down to 24V to run a charger to put electrical power into a battery that goes into the heli to turn an electric motor...blech!... my head is already spinning... All that seems like way more time and money on non-flying stuff than put gas into heli and go fly.

I'd rather fly more and listen to a heli engine rather than a genny. I guess I'm just funny like that lol.

As for carrying DC in the car, there are some creative solutions that take up hardly any more room than the genny. True that the genny will last a long time, but DC's are a neato solution especially if you already have some sitting around.

But I agree even the costs can end up comparable if you do either one completely from scratch with new equipment.

LS

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07-15-2013 02:21 AM  5 years agoPost 13
Ace Dude

rrProfessor

USA

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Deep cycle batteries and heavy and need to be constantly charged/maintained and stored fully charged. The last thing I want to do is load 150-200lbs of batteries in my car, go to the field, then unload them when I get home and then put them on charge.

I evaluated all possible options several years ago and purchased a Honda eu2000i. In addition to RC field use it powered my entire house (not all at once) for 8 days straight during Sandy and for 4 days straight during another storm the previous year.

I find it simple and straight forward. Generator -> power supply -> chargers.

  

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07-15-2013 03:15 AM  5 years agoPost 14
gologo

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Sedalia, Mo USA

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And I will bet that the Honda pretty much paid for itself in those 12 days
in several ways.......

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07-15-2013 03:20 AM  5 years agoPost 15
Tyler

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Chicagoland area

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We just flew all day long at a funfly yesterday with a Honda 2000 watt generator keeping two pilots in the air. At most times we were drawing about 1,000 watts from the generator, which indicates that a Honda 1000 would be too small. A smaller generator would be maxed out but the larger honda just idles along and occasionally speeds up as needed to a light jogging pace.

We were powering two sets of server converted power supplies. Mine was three supplies in series offering 37.5v to feed two iCharger 3010b's. I also had an iCharger 4010duo on tap but never used it. The 4010 duo could easily over tax my 1,750 watt power supplies, but friendly conversation, relaxing and socializing allowed us to comfortably charge at a moderate rate rather than maximum rate. The second pilot had two server supplies in series for 24v and was using a Thunder Power charger.

The main consideration is whether you want to charge hard and fast frequently with few packs, charge lots of packs in parallel at once but for longer periods of time (again hard and fast or moderate), or charge slower but constantly babysitting at lower power settings.

The more channels you have the more flexible your options, especially if you toss Tx batteries, rx, and other model batteries into the mix.

Enjoy things that money can buy IF you don't lose the things money can't buy.

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07-15-2013 03:43 AM  5 years agoPost 16
Ace Dude

rrProfessor

USA

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And I will bet that the Honda pretty much paid for itself in those 12 days in several ways.......
It sure did. We had all the comforts of home. Heat (it was freezing out), hot water, lights, refrigerator, TiVo, TV, sump pump. We even did a load of laundry. I have a gas dryer and if I turn everything else off I can get the eu2000i to start the dryer.

Been seriously considering getting an eu2000i companion or an eu3000i for the house, but the eu2000i works so well it's hard to justify it.

It was cold enough one of our neighbors went to a hotel.

  

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07-15-2013 08:21 PM  5 years agoPost 17
JasonJ

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North Idaho

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A lot of people poopoo the cheaper noisy generators. A few of us have crappy cheap generators but we set them behind our cars and run a cord. You can hear them but not by much. Nowhere near as loud as the guys flying 50cc gasser planks or nitro birds. Whats one more engine sound. Me, I only run my crappy cheap generator long enough to charge what I need. Getting a nice Honda or Yamaha would be cool but everyone who is considering a small genny purchase needs to consider it's use. If all it is going to be used for is the hobby and the field is full of other noise then get what you want. If you are flying an electric only fieldmwhich is bordered by a nunnery on one side and a library on the other then a Honda is a good idea. Our field, you could run a train engine fo all it matters with all the other noisy crap out there flying around.

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07-15-2013 10:14 PM  5 years agoPost 18
Tyler

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Chicagoland area

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My personal solo flying location is terribly noisy with all the butterflies roaring by, the 1,500 acres of sod photosynthesizing constantly, and the meandering crystal clear creek screaming serenity only 15 yards behind me.

Yep, Honda for me. I dont wish to hear my generator over all that other racket!

Enjoy things that money can buy IF you don't lose the things money can't buy.

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07-15-2013 11:14 PM  5 years agoPost 19
Ace Dude

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USA

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+1!

One of the largest threats of our flying fields nationwide is noise pollution. Who wants to listen to more noise than is absolutely necessary?

For those considering purchasing noisy generators consider that the SEFF fun-fly implemented noise limits for generators a few years ago. It's only a matter of time before other R/C events follow suit.

"All generators should maintain a maximum sound level of less than 65dB at 10 feet under full load."

http://www.seffweek.com/accomodation/tent-rv-camping

  

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08-03-2013 01:16 PM  5 years agoPost 20
HeliNutAndy

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worcester, MA USA

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I ended up purchasing a 800 watt generator for $100 from harbor freight. It charges my 10S batteries in ten minutes. I realize it's not the best generator out there but for the price I had to try it out. I am shocked how great it works. Where I fly there are no issues with noise. There are motor boats on one side of the field and not too far away on the other side there are a few companies that make a ton of noise. I keep the generator on the edge of the bed of my pickup and now I do not have to worry about having to go home after running out of juice I do not have a need for a generator for anything but charging a few batteries at the field and I'm not ready to spend $1000 on a generator. I have used this one a few times and it does not surge and it runs great. Thx for everyone that chimed in and helped. Time to go to the field...

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HomeAircraftHelicopterHelicopter Main Discussion › Whats needed to charge at the field 10S/12S setups
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