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06-06-2012 04:31 PM  6 years agoPost 1
Propwash3D

rrApprentice

ohio great lakes

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would a 800-1000watt generator be enough to power 2 ichargers 306b

they are 1000 watt chargers...plug into regular wall outlet then the power is amplified to the charger via the power supply`

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06-06-2012 04:34 PM  6 years agoPost 2
Big Fil

rrKey Veteran

Santa Rosa, CA

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1000 watts is a 1000 watts. So no, if you wanted to run those chargers at their full capacity the 1000w generator will not be enough.

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06-06-2012 05:33 PM  6 years agoPost 3
ticedoff8

rrKey Veteran

Morgan Hill, CA. USA

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And, read the specs on the generator before you buy.
A '1000 watt' generator may be actually rated at 850 watts continuous with a 1000 watt peak.

And... Watts is Watts.
To run 2 1000 watt chargers at the full rated charge rate and at the same time, you will need a generator rated at more than 2000 watts.

But, if you can't afford a 2200w generator, you can always change the charge rate of each charger.
Start low, and dial each one's charge rate up until you trip the breaker on the generator, then back them down until they will complete a full charge while both running at the same time.

But, it becomes a game.
If it takes 1 hr to charge 2 packs on 2 chargers at 50% rate, it should only take 30 min to charge each pack at 100% rate - and 1 hr total.

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06-06-2012 05:44 PM  6 years agoPost 4
bart2546

rrVeteran

Canal Winchester, OH - USA

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+10 to what everyone has said. It's a good thought to keep in the back of your mind that in order to run chargers at their max capacity you always have to have over that rating to power them. Such as: If you have a 1,000 watt charger, you'll need more than a 1,000 watt power supply and more than a 1,000 watt generator.

Regards, Brandon Bartolomucci; Team Synergy; Team Scorpion; & Team Bavarian Demon; AMA# L939231

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06-06-2012 06:00 PM  6 years agoPost 5
Band1086

rrElite Veteran

Kennewick, Wa. USA

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Good info guy's and all correct. Something I might add though is that even though the 306B is rated at 1000W, when charging Lipo's, it will only give a max of 750W...30A(max) X 25.2V(max for 6S) = 756W. The 306B is limited to 6 cells with Lipo's. With some other types of battery chemistry's it will give the full 1000W, but not Lipo's. So, when this is considered, the max output for both chargers together is 1500W when charging Lipo's...

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06-06-2012 06:58 PM  6 years agoPost 6
Propwash3D

rrApprentice

ohio great lakes

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ok
thanks..i need to get a generator for ircha..this past fun fly made me realize that charging off the carr is not going to work..I dont need to charge at 24v @ 30 amps because i never do and its not good for the lipos..however i do need some type of decent power

band 1086 can you explain how you got the total wattage of the icharger to 750 watts..

so i need at least a 1500watt charger thinking about the champion its 2000w

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06-06-2012 07:32 PM  6 years agoPost 7
Wingman77

rrProfessor

Pulaski Tennessee

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the i charger is 750 watts in most cases because it maxes out at 30 amp and most people charge 6s packs(25v) so 30*25 = 750 however it requires more power than that because around 100-150 watts is lost in the charger and power supply as heat.

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06-06-2012 07:36 PM  6 years agoPost 8
Mike Fortin

rrElite Veteran

USA

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If your going to get 1000w, get the Honda or for $100-200 more you can get the Honda 2000i which IMHO is the best generator on the market.

Have Rotors, Will Fly!

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06-06-2012 07:57 PM  6 years agoPost 9
rtdillon

rrApprentice

Huntsville, AL

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Honda
+1.

It will not let you down and protects itself if you abuse it.

No,No..The other left!

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06-06-2012 08:19 PM  6 years agoPost 10
Band1086

rrElite Veteran

Kennewick, Wa. USA

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can you explain how you got the total wattage of the icharger to 750 watts..
Wingman is essentially right, however the ichargers are pretty efficient. I think the losses at the charger are more like 10~15% max.

So, 30A which is the max output Amps for the 306B, times the max charged battery voltage which is 25.2V, equals the max output amps plus a max of 100 extra watts for losses in the charger.

30A X 25.2V = 756W
750W + 100W = 856W (approx) into the charger to get max out for Lipo's.

BTW, with the latest gen Lipo's, it really does not hurt them to charge faster than 1C. The reality is that 1C takes an hour to charge one set, and that makes electrics rather unattractive. The main thing that has made them really viable is the fact that with only 2 or 3 sets of batteries, and 2 high powered chargers, a person can fly back to back all day long, just switching out packs as fast as they can.

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06-06-2012 09:37 PM  6 years agoPost 11
psych-lick

rrKey Veteran

Portland, OR

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Be sure to use a power-factor corrected power supply else you may hit the generator's max amp current breaker before getting close to the max wattage output.

-Jeff T.

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06-07-2012 12:54 AM  6 years agoPost 12
jbdww

rrElite Veteran

Round Rock, Texas

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Even witha good power factor, you still have somewhere around 10% in losses. Look into at least a 2k gen.

Skids Up
http://www.jbdww.com
http://twitter.com/jbdww/

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06-09-2012 01:56 AM  6 years agoPost 13
john.hopkins

rrNovice

FT Pierce, Florida United states

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That genny will be fine.. Just hear me out. If the genny is rated for 1000watts, thats at 120v. You are only using a quarter of the voltage, so you can use 3 times the amps reccomended. I only say 3 times to be safe. We all know how companies over rate there products. If it were 100% efficient then I would have said 4x the rated amps.. I use a 2000 watt genny and 2 icharger 3010b's at the field and I safely charge at 48amps with room to spare...

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06-09-2012 02:12 AM  6 years agoPost 14
jbdww

rrElite Veteran

Round Rock, Texas

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48Amps X 24Volts = 1152 Watts.

Skids Up
http://www.jbdww.com
http://twitter.com/jbdww/

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06-09-2012 02:16 AM  6 years agoPost 15
YSRRider

rrElite Veteran

usa

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a cheapy 2000-2200 watt gen is $250-$700 on Ebay.... but Electric is cheaper than nitro! Along with running 2 chargers.

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06-09-2012 02:34 AM  6 years agoPost 16
john.hopkins

rrNovice

FT Pierce, Florida United states

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"48Amps X 24Volts = 1152 Watts."

Thats why I stated in my post, "SAFTEY" and "ROOM" to spare. He should just stick to charging at 15 amps per charger. Or 30amps a single charger. He could charge 2 6s 5000mah batt's at 3c with absolutly no issues with a 1000watt genny. I have a buddy that uses a sh&tty harbour freight 900 watt genny and charges his 6s batts at 13 amps a piece with a hyperion duo without any issues at all. To the OP. If cost is an issue go with a 1000watt. Just make sure you get something decent. I have tried a few and they wouldnt hold up. If you have a sams club near by that carries the champion 2000watt get it! Thats what I have and it works great. It only cost me $489. Its really quiet and starts everytime without any issues.

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06-09-2012 02:41 AM  6 years agoPost 17
Jgatorman

rrVeteran

Birmingham, AL

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I owned the Honda 1000 it was not capable of charging 2 x 6s packs at 20 amps each off of the Hyperion 720i duel charger. I swapped it out after a few weeks on a Honda 2000. Charges 2 x 6s in approx 12- 13 min and I am very pleased with the 2000.

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06-09-2012 03:11 AM  6 years agoPost 18
BobOD

rrElite Veteran

New York- USA

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I got the 1000W one mainly because it is lighter (I have back issues) and fits better in my car back seat. Actually not as quiet as the 2000 model though. The Honda 2000 is the best there is IMO.

Team POP Secret

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06-09-2012 03:15 AM  6 years agoPost 19
OICU812

rrMaster

Edson, Alberta, Canada

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HONDA or nothing, best money you can spend on a generator.

...Once upon a time there were Nitros, flybars and frequency pins...

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