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Main Discussion > power supply options
 
 
jjvwg
Senior Heliman
Location: Vail/Boulder, CO

My Posts This: Topic  Forum

you can get anywhere from 5v to 17v off a computer PS, just make sure you have one that's above 300 watts (400w would be better). As sonic88 said, I probably wouldn't use one for larger packs, I only charge 2-3 cell lipos.

Jeff
10-29-2009 01:26 AM
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monkey nuttz
Senior Heliman
Location: ft worth

My Posts This: Topic  Forum		this would be to charge 2 6s packs at the same time on a hyperion duo 3 at max charge rate.

Bobby Jack's Hobbies
10-29-2009 01:28 AM
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jjvwg
Senior Heliman
Location: Vail/Boulder, CO

My Posts This: Topic  Forum		http://cgi.ebay.com/12V-DC-29A-350W...=item5ad4728295

http://cgi.ebay.com/13-5V-DC-25-8A-...=item2556bef99f

Jeff
10-29-2009 01:31 AM
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TJinGuy
Elite Veteran
Location: Socorro, NM - USA

My Posts This: Topic  Forum		Then definitely go for a 24V power supply as that will lessen the work the charger has to do.

Of course if you were really all about the fast charge you should have chosen a pair of more powerful chargers, the iCharger 208B. For less than $40 more than a Duo you could have charged 2 6s packs at 13.9A each. Then you could also have purchased 2 smaller power supplies to feed the chargers.

Hey you just seem like you want some fast charged packs and that is it.

- Chris

TJinTech
Team New Mexico
10-29-2009 01:35 AM
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monkey nuttz
Senior Heliman
Location: ft worth

My Posts This: Topic  Forum		haven't got the charger yet but plan to.

just want to have a power supply strong enough to get the maximum benefit from the duo 3.

Bobby Jack's Hobbies
10-29-2009 01:41 AM
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Thomas Moore
Senior Heliman
Location: California

My Posts This: Topic  Forum		Common Sense RC makes a good one. I use it.

Team Avant
10-29-2009 01:42 AM
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monkey nuttz
Senior Heliman
Location: ft worth

My Posts This: Topic  Forum		common sense r/c:

http://www.commonsenserc.com/produc...products_id=765

now that may be perfect thomas.

Bobby Jack's Hobbies
10-29-2009 01:52 AM
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Thomas Moore
Senior Heliman
Location: California

My Posts This: Topic  Forum		Glad I could help. It has never failed me. Always is up to the task at hand. (and cheap too)

Team Avant
10-29-2009 01:54 AM
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monkey nuttz
Senior Heliman
Location: ft worth

My Posts This: Topic  Forum		the only concern would be the inability to run 13-16 volts.

Bobby Jack's Hobbies
10-29-2009 02:36 AM
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Wingman77
Elite Veteran
Location: Pulaski TN US

My Posts This: Topic  Forum		I have had two hyperion duo chargers maxed out on my computer power supply running 12v and they worked just fine. while it may be nice the higher voltage is not necessary.

34.6% of all statistics are made up on the spot
10-29-2009 02:58 AM
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monkey nuttz
Senior Heliman
Location: ft worth

My Posts This: Topic  Forum		wingman, what are your charge times for 6s 3000mah 30c packs?

i keep hearing from my local pros that i need 13-16 volt capability to get full use of the hyperion's capabilities.

Bobby Jack's Hobbies
10-29-2009 03:06 AM
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TJinGuy
Elite Veteran
Location: Socorro, NM - USA

My Posts This: Topic  Forum		No you need 15V to get the full wattage output, not 13V, not 14V, 15V. But like I said before, 24V is better for charging 6s packs. See a 6s pack is 25.2V at full charge and 25.2V is a lot closer to 24V than 13-16V. That makes it easier for the charger to charge as it does not have to make a massive voltage conversion. It also means you won't need a 30A power supply but rather a 20A will be plenty.

Charge times depend on charge rate. The Duo will max out right over 7A on a 6s pack. That equates to a little over 2C charging. So a pack should be done in about 30min. If you want higher charge rates then get a bigger charger. A measly little $120 iCharger 106B+ will charge a 6s packs @ 10A, that is a little over 3C. The $170 208B will do it at almost 14A, that is just under 5C.

- Chris

TJinTech
Team New Mexico
10-29-2009 03:43 AM
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Wingman77
Elite Veteran
Location: Pulaski TN US

My Posts This: Topic  Forum		here is a 24v 350watt power supply.

34.6% of all statistics are made up on the spot
10-29-2009 04:10 AM
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monkey nuttz
Senior Heliman
Location: ft worth

My Posts This: Topic  Forum		makes sense, thanks tjin.

keep em coming.

Bobby Jack's Hobbies
10-29-2009 04:24 AM
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Thi-rex
Senior Heliman
Location: Michigan

My Posts This: Topic  Forum		I purchased a 42 Amp (502 Watts @ 12V) power supply from feathermerchantrc.com and I've been happy with it so far.
10-29-2009 04:35 AM
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Band1086
Senior Heliman
Location: Kennewick, Wa. USA

My Posts This: Topic  Forum		I experienced every thing T Jin is saying. I have 4 duo3 chargers and 3 55A Bulldog PS. I had to wire 2 13.6V PS in series for 27.2V out
(Duo3 good for 28V). Then I was able to get 7.2A to each batt. That's the most 180W/ channel will give for 5000 6S. Check "Rivergate Distributing" for Bulldog power supplies. They have all sizes.
10-29-2009 06:49 AM
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Ace Dude
Elite Veteran
Location: USA

My Posts This: Topic  Forum
Quote 
Of course if you were really all about the fast charge you should have chosen a pair of more powerful chargers, the iCharger 208B. For less than $40 more than a Duo you could have charged 2 6s packs at 13.9A each. Then you could also have purchased 2 smaller power supplies to feed the chargers.

Not everyone wants a charger as problematic and unreliable as the iCharger.

When traveling, it's usually easier and more convenient to carry one charger and one power supply rather than two chargers and two power supplies.

Quote 
No you need 15V to get the full wattage output, not 13V, not 14V, 15V.

Actually, 14.5v is the correct voltage.



10-29-2009 11:51 AM
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Pellicle
New Heliman
Location: New York

My Posts This: Topic  Forum		Computer supply

I have had great success with a modded computer power supply. Some of the new units are very efficient and are low cost because they are produced in mass quantities. With the right unit you can exceed any chargers current requirements. Many you can get the efficiency curves on. Better efficiency not only means less power used per charge but also less heat generated from the supply.
10-29-2009 02:19 PM
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TJinGuy
Elite Veteran
Location: Socorro, NM - USA

My Posts This: Topic  Forum		Ace do you really have to come in here and bash the iChargers yet again? Got any new proof that they are total crap chargers? This guy is looking to fast charge some packs and there is nothing faster than even the cheap iCharger.

And yes I know it is 14.5V, I was just using 15V because it is not easy to buy a 14.5V power supply.

- Chris

TJinTech
Team New Mexico
10-29-2009 04:22 PM
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Ace Dude
Elite Veteran
Location: USA

My Posts This: Topic  Forum
Quote 
Ace do you really have to come in here and bash the iChargers yet again?

Quote 
Of course if you were really all about the fast charge you should have chosen a pair of more powerful chargers, the iCharger 208B. For less than $40 more than a Duo you could have charged 2 6s packs at 13.9A each. Then you could also have purchased 2 smaller power supplies to feed the chargers.

So it's okay for you to bash anyone who doesn't buy an iCharger?

Quote 
Got any new proof that they are total crap chargers?

I didn't say that they are total crap. Please don't put words in my posts, again. Seems you continually do that. Here is one sample of problematic and unreliable:

http://www.rcgroups.com/forums/show...&postcount=4963

Quote 
And yes I know it is 14.5V, I was just using 15V because it is not easy to buy a 14.5V power supply.

Maybe, but 14.5v is 14.5.

Actually, don't the iChargers require 17v for max output?



10-29-2009 05:01 PM
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