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HomeAircraftHelicopterMain Discussion › iCharger 308 Duo field question
03-10-2014 01:52 PM  4 years agoPost 1
pitmaster

rrApprentice

Harleysville, PA

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I just bought an ICharger 308 Duo and I have a question about use in the field. The manual didn't explain this (at least not clear enough for me) and before I go a ruin a new charger I want to ask those who know... Can I just connect my 12V Marine Battery to the input?

Sorry if this question is dumb but I am new to this stuff and I prefer to ask a dumb question than through money in the trash. Thanks for the help.

Sweet Blades (Logo 600SE) and the Micro Harem - 4 x MCPX BLs | MCPX v2| 2 x NCPX | 130X | Trex 150

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03-10-2014 02:19 PM  4 years agoPost 2
Richardmid1

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Leeds, England

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Yes. It will accept anything from 10v to 30v. You may only get 400-500W at 12v though which kind of defeats the purpose of buying such a powerful charger. To get around 800-1000W you would need 2 marine batteries in series to give 24v or a 24v power supply and a portable geny.

60% of the time, it works every time!

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03-10-2014 02:26 PM  4 years agoPost 3
pitmaster

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Harleysville, PA

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Very Helpful
Thank you for answering my question. That makes sense so I just need to purchase another 12V deep cycle (total of two) and I should get faster charge times.

Sweet Blades (Logo 600SE) and the Micro Harem - 4 x MCPX BLs | MCPX v2| 2 x NCPX | 130X | Trex 150

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03-10-2014 02:30 PM  4 years agoPost 4
pitmaster

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Harleysville, PA

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At first I missed the statement about a portable generator. What is that used for? I have a portable generator (well maybe not so portable as it is 5500w). I guess what you are telling me is that I could connect it to the DC out of the generator? But if I just want to go out in the field with a battery I could... right? It would just take longer to charge?

Sweet Blades (Logo 600SE) and the Micro Harem - 4 x MCPX BLs | MCPX v2| 2 x NCPX | 130X | Trex 150

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03-10-2014 02:41 PM  4 years agoPost 5
Richardmid1

rrProfessor

Leeds, England

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No don't charge off the dc out on the geny. The power supply connects to the genys output (240 or 110v) then the power supply takes it down to 24v. Yes you can just charge off a single marine battery as you say it may just take longer. What voltage packs are you charging?

60% of the time, it works every time!

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03-10-2014 02:46 PM  4 years agoPost 6
pitmaster

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Harleysville, PA

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Thanks. Gotha - I guess I should learn how to read first. I see that you said 24V power supply and geny. That makes sense but I had batteries on the brain. Right now I haven't purchased a power supply for the duo as I have another charger at home that I had planned on using since it already has a power supply. It is much slower but when I am at home I am not in that big of a hurry.

I am charging two 6S PULSE 22.2V 3300mAh 35C LiPos

Sweet Blades (Logo 600SE) and the Micro Harem - 4 x MCPX BLs | MCPX v2| 2 x NCPX | 130X | Trex 150

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03-10-2014 03:21 PM  4 years agoPost 7
Rudy

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Houston TX/Bend OR

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The manual didn't explain this
You got a manual . . . . .

Where is this manual you speak of?

Thanks

Rudy Ackerman Houston TX/Bend OR

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03-10-2014 03:28 PM  4 years agoPost 8
pitmaster

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Harleysville, PA

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I found the manual online just by using a google search. I just ordered the charger this morning but I assume it will have a manual in the box. If it doesn't, I saved the pdf.

Sweet Blades (Logo 600SE) and the Micro Harem - 4 x MCPX BLs | MCPX v2| 2 x NCPX | 130X | Trex 150

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03-10-2014 03:31 PM  4 years agoPost 9
Richardmid1

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Leeds, England

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Ok so as you will get around 400W output at 12v input thats around 16-18A charging 6s Li-po. So 2x 3300 is 6.6A, 6.6A would be 1C so you should be able to charge 2 6s 3300's at 2.5C (17A) in about 20-25 minutes.

60% of the time, it works every time!

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03-10-2014 03:33 PM  4 years agoPost 10
Richardmid1

rrProfessor

Leeds, England

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ichargers come with the manual on disc.

60% of the time, it works every time!

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03-10-2014 04:00 PM  4 years agoPost 11
pitmaster

rrApprentice

Harleysville, PA

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Very helpful and much appreciated. I can live with the 20 to 25 minute charge time for now.

Sweet Blades (Logo 600SE) and the Micro Harem - 4 x MCPX BLs | MCPX v2| 2 x NCPX | 130X | Trex 150

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03-10-2014 04:22 PM  4 years agoPost 12
fastflyer20

rrKey Veteran

N. Tonawanda, NY

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Make sure you don't draw to much power if your PS is undersized. The one complaint is the 308 does not take kind to large voltage drops which can be caused when the charger pulls more than the PS is capable of delivering and the PS shuts down.

When you are ready, one option is to buy a set of server power supplies that can power the 308 with ease. Two server PS tied together gives you 24 volts and they can have a 12v output for your other charger. If interested, do a search. There are many posts on server power supplies.

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

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03-10-2014 04:27 PM  4 years agoPost 13
pitmaster

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Harleysville, PA

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Thanks Tom. I was looking at server power supplies. Would I try and match or get close to the 1300W capability? Is that what you are referring to? So somewhere in the neighborhood of 55 amps?

Sweet Blades (Logo 600SE) and the Micro Harem - 4 x MCPX BLs | MCPX v2| 2 x NCPX | 130X | Trex 150

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03-10-2014 04:35 PM  4 years agoPost 14
pitmaster

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Harleysville, PA

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If I get a couple of Dell PowerEdge power supplies, does anyone know if there is a connector plug that you can buy that fits on the supply so that it converts it to a positive and negative lead?

Sweet Blades (Logo 600SE) and the Micro Harem - 4 x MCPX BLs | MCPX v2| 2 x NCPX | 130X | Trex 150

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03-10-2014 05:00 PM  4 years agoPost 15
fastflyer20

rrKey Veteran

N. Tonawanda, NY

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The easiest is to buy a set already set up, one ground needs to be ungrounded, solder the bullets on and jumper for 24 and 12 volts, install jumpers to turn them on plus some will slow the fans down to quite them down.

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

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03-10-2014 05:08 PM  4 years agoPost 16
pitmaster

rrApprentice

Harleysville, PA

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Thanks Tom. If it isn't plug and play then I am certain it would be easier for me to buy it set up already

Sweet Blades (Logo 600SE) and the Micro Harem - 4 x MCPX BLs | MCPX v2| 2 x NCPX | 130X | Trex 150

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03-10-2014 07:04 PM  4 years agoPost 17
Rudy

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Houston TX/Bend OR

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ichargers come with the manual on disc.
Must be that stupid mini disc that nothing I own will read

Rudy Ackerman Houston TX/Bend OR

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03-10-2014 10:42 PM  4 years agoPost 18
pctomlin

rrVeteran

Texas

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If you decide to go with a set of Dell power supplies I recommend the PowerEdge 6650s. Very good units that need no ground modifications because they are already isolated on the ac and dc sides.
You can get the back planes here......http://www.questcomp.com/questdetai...ign=FindchipsWS

Back planes wired up and ready for liquid tape. White plug goes to 12v cooling fan, servo plugs go to on/off switches and the servo lead going out of the picture goes to an LED voltage display.

Back planes removed

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03-11-2014 03:45 AM  4 years agoPost 19
KingJoeMack

rrVeteran

New Baltimore, Mi USA

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Here is what I did-
2 deep cycle marine batteries & 24 volt marine charger in my Suburban

https://rc.runryder.com/t690011p1/

I had back surgery.

No lifting a generator for me.

Fly with scheduled ground contact !

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03-11-2014 04:29 AM  4 years agoPost 20
JEEPWORLD2002/2

rrKey Veteran

Blue Bell, Pa

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Ken if you want to get the cost effective ones I d be happy to wire for ya it's my speciality I ve been looking at some server supply's to run my 40/60 amp prototype. I saw the big bulldog wow at 350 I get server supply's any day I also look into the one of the huge 2000 watt CPU supply n day if the thing was 475+ piece when ordering 100-150 units ?? Why are some supply's so cheap bs dam expensive ??

Trex600n,Trex500,MR25,MikadoLoGo5003d/KDE,Goblin 380XNova,CastleCreations,Ys,JR XG8,Tags Mini XBus Dmss//FAA# FA3NYC9TAP

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