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HomeAircraftHelicopterHelicopter Main Discussion › What connectors do you use for your 12S helicopter?
10-27-2011 03:00 AM  7 years agoPost 21
Al Austria

rrElite Veteran

Sacramento, CA - USA

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What I did on my 700E Conversion 2 years ago(running Dean's connectors):


I'm still flying this particular setup, and the Dean's have been connected/disconnected well over 700 times. They still look and function like new.

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10-27-2011 03:10 AM  7 years agoPost 22
red_z06

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Dumont, NJ

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Al,

Can you edit the words IMG to PHOTO? It will create thumbs you can click to enlarge.

www.JustinJee.com

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10-27-2011 03:16 AM  7 years agoPost 23
Al Austria

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Sacramento, CA - USA

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Strange, thumbnails work, but no preview...

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10-27-2011 03:17 AM  7 years agoPost 24
red_z06

rrProfessor

Dumont, NJ

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At least I can see the pics now.

www.JustinJee.com

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10-27-2011 03:18 AM  7 years agoPost 25
Al Austria

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Sacramento, CA - USA

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10-27-2011 03:19 AM  7 years agoPost 26
red_z06

rrProfessor

Dumont, NJ

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For me, I just let the 4mm bullet take the spark. Deans look new.

www.JustinJee.com

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10-27-2011 03:23 AM  7 years agoPost 27
Dr.Ben

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Richmond, VA, USA

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I certainly have no disagreement with a set up that has some other component other than the Deans taking the hit of the arc.

Ben Minor

Peak Aircraft/Team Minicopter Team Futaba Team Kontronik USA

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10-27-2011 03:29 AM  7 years agoPost 28
red_z06

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Dumont, NJ

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If you don't, it will degrade rather quickly and so does the performance.

www.JustinJee.com

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10-27-2011 04:05 AM  7 years agoPost 29
Band1086

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Kennewick, Wa. USA

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I see what your saying, but I think what someone gets away with and what the proper way to do it are two different things...

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10-27-2011 11:52 AM  7 years agoPost 30
red_z06

rrProfessor

Dumont, NJ

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I see what your saying, but I think what someone gets away with and what the proper way to do it are two different things...
This is true, considering I have to use the 4mm bullet. When it first came out, no one thought of using it on a 50v setup. The contact itself is good to 80-90a, you just have to make sure the contact surface stays clean to let you do that.

www.JustinJee.com

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10-27-2011 11:55 AM  7 years agoPost 31
Ronald Thomas

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Gainesville, Fl, USA

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EC-5s are the way to go and are the easiest to solder and maintain (cause there is none). EC-5 allow the spark to be contained to the tips so the actual contact area is not affected. Deans are good as long as you have anti-spark installed but then goes the issue of heat generated across the contacts from resistance. The EC-5s have a MUCH bigger area for contact so less resistance is created given the same work. Less resistance, less heat, contacts last longer, contacts do not fail.
I also feel MUCH better about having an 8awg wire fit inside the connector with a solid solder connection around the whole wire versus just part of the wire soldered to the tiny connection area of a Deans.
IMO Deans are good for 550 sized 6s setups and lower, anything above that requires an EC-5 or larger if you want the setup to last..........Ron

Team MikadoUSA 480XXTreme, 550SX, 600SX, 700XXTreme, 800XXTreme!!

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10-27-2011 12:19 PM  7 years agoPost 32
deafheliflyer

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Arizona

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connectors
I use 4.0mm bullet connectors on my Logo 400.. I learned this from Dave/Kyle Dahl. When in storage, one of my connectors has a "dummy" female over the male so that there is no opposites touching..

Works great.. Easy to solder.. And I like it

Crash-Prone and overcoming it!!!

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10-27-2011 12:34 PM  7 years agoPost 33
red_z06

rrProfessor

Dumont, NJ

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IMO Deans are good for 550 sized 6s setups and lower, anything above that requires an EC-5 or larger if you want the setup to last..........Ron
Lets say the spark is contained ( zero v at initial contact).

If I go to 24s on a 700, what connector will I NEED (different than can)? What do you think causes the wires from heating up? V or I?

If you use 3s for a 550 (you can), your current requirement doubles to maintain same power. So, you will have to use heavier gauge wires and contacts. On the other hand, if you go to 12s on a 550, you can actually reduce the wire gauge and use smaller connectors.

36s 700 setup flown for 6min (80%) will only require 1670mah cells as the avg current drops to 13.3amps. You can use 12-14gauge wires throughout the setup for that load.

To sum it up, 550 using 6s5000 with flight time of 3.5min will have higher temp on the wires (same gauge) than a 700 using 12s5000 with 5min flight time.

www.JustinJee.com

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10-27-2011 01:15 PM  7 years agoPost 34
snjbird

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Kissimmee, Florida- USA

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Deans here, nothing fancy, same sets about 2.5 years old. But my 600 does not pull the current the 700s do...

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10-27-2011 01:25 PM  7 years agoPost 35
gwright

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Champaign Il

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Deans on everything, simply because I have dozens and dozens of packs, numerous fixed wing, helis, and everything has been deans for many years. It would take a month of soldering to change to anything else. I have actually used Deans before on an application drawing bursts of 200+ amps. Only a couple seconds at a time (hotliner) but they were Ok in that application. My larger helis are setup for lower rpm smooth 3D and long flights so current isn't very high and the deans are of no concern. Strangely enough i discharge a 4350 10S setup on my 600 size in less than 5 minutes, but the 12S/5000 in the 700 goes 10, and I've pushed it further but that leaves virtually no reserve in the pack. It's really fascinating just how much more efficient the larger machine is at the lower rpms, and how high I have to spin the 600 due to the higher disk loading. I think the math says I'm using a LOT more average power in the smaller machine although it's smaller, and a few pounds lighter.

Gary Wright

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10-27-2011 02:02 PM  7 years agoPost 36
Ronald Thomas

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Gainesville, Fl, USA

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Benny I get what you are saying and I agree, my biggest issue in that instance is the solder surface area on the Deans compared to the wire. I feel an 8Awg wire soldered to that tiny Deans connector surface is safe or secure over the long haul. All it takes is a cold joint and bad things can happen quickly. I guess that could be said about any solder connection but there is a LOT more solder in an EC-5 and they are much easier to solder.........Ron

Team MikadoUSA 480XXTreme, 550SX, 600SX, 700XXTreme, 800XXTreme!!

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10-27-2011 02:19 PM  7 years agoPost 37
red_z06

rrProfessor

Dumont, NJ

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I feel an 8Awg wire soldered to that tiny Deans connector surface is safe or secure over the long haul.
I agree. Deans do demand more soldering skills to get the same job done. It could be a daunting task for an ill equipped newbie.

For those who use Deans on large gauge wires, reshaping after tinning will improve (less gap between copper wire and brass contact) performance both electrically and mechanically.

EC5 will be far superior in a mechanical tensile test than Deans would.

www.JustinJee.com

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10-27-2011 02:21 PM  7 years agoPost 38
Phaedrus

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S. Orange County, California

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I use 5.5 mm on pretty much everything except the smaller 3S stuff like some BnF planes, etc.

AMA Leader Member
Go FASST, or Go Home!!
Team Futaba

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10-27-2011 03:08 PM  7 years agoPost 39
eddiscus

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Dumont, NJ-USA

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For those of you that may not have seen it. I put together a quick test video of the deans connector, anderson 45 amp and anderson 75 amp connectors.

To sum it up the deans failed at the solder joint at 300+ amps. ( may have been a sub par solder joint)

The anderson 45 failed along with the #10 wire at 300+ amps ( sorry on the video clip it was noticed the camera did not come out of pause and the connector was allready subjected to several 300+ amp quick hits.) The video is of the connector and wire being taken to failure or melt down.

The anderson 75 was better than the # 10 wire. Probably over kill and definatly bulky for our hobby.

I would expect bllet style connectors like the EC5's to fare inbetween the 45 and 75 anderson. Have not had a chance to test them.

Here is the video for those interested.

Watch at YouTube

Logo Xxtreme 800
Logo 700
Citizen 142
Synergy 766
TDR 2

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10-27-2011 03:13 PM  7 years agoPost 40
bkervaski

rrElite Veteran

Birmingham, AL, USA

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I just switched to Anderson Power Poles from EC5's.

The EC5's are definitely better from a current/connection standpoint but they are a pain to disconnect, at least the E-Flight ones. They hold so hard I thought I might actually break a soldering point disconnecting.

So far so good on the APP's, they stay cool and are simple to crimp and very easy to connect/disconnect.

Team Synergy Factory Specialist / Scorpion / Thunder Power / Byron's Fuels

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HomeAircraftHelicopterHelicopter Main Discussion › What connectors do you use for your 12S helicopter?
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