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› Zippy (and others?) Deans connector warning
03-16-2009 11:37 AM  8 years agoPost 1
pgoelz

rrVeteran

Rochester MI

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Folks,

I almost lost a plane (I fly them too) the other day to a faulty and/or poorly designed "Deans" connector (I am assuming it was not a geniune Deans) on a new Zippy pack. The connector in question came pre-installed on the new pack and was well soldered and mated with a genuine Deans on the ESC. When plugged in, it made contact and everything was OK until I taxied out to the runway. At that point, the motor spooled up and then died. There was no power at all, but handling the wires brought it back to life. I was tempted to fly it because I was unable to make it fail again, but reason prevailed and I decided against it. A good thing.... as I unplugged the battery, the power died again as I started to un-mate the two halves of the connector. I could make it come and go if I wiggled the connector with them fully mated.

Physically, the connector on the battery looks identical to a real Deans except the color is a duller red/orange/brown. And by design, it ought to work even if the dimensions are a bit off. But it definitely didn't. I replaced it with a real Deans and problem solved.

Paul

Paul Goelz
Rochester MI USA
http://www.pgoelz.com

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03-16-2009 01:54 PM  8 years agoPost 2
Ktbone

rrApprentice

NH

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yup very common on the packs that come with a "deans" attached.

First thing I do is test it with a male deans connector. I install the connector and hook it up to a meter and the wiggle the connection, any fluctuation at all and off it comes.

If you don't know where you are going any road will take you there.

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03-16-2009 04:56 PM  8 years agoPost 3
TJinGuy

rrProfessor

Socorro, NM - USA

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I have come across some Deans plugs that were VERY easy to connect and disconnect. This is not a good thing. Deans should be very hard to get apart. I found them to have a very thin spring, the little flat spring thing on the opposite side of each contact on the male connector. I am guessing it was 1/3 the thickness of the others I have.

Anyhow that is what I have found.

- Chris

Team New Mexico
TJinTech

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03-16-2009 05:02 PM  8 years agoPost 4
USNAviationjay

rrElite Veteran

Houston Tx USA

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Watch out for those "cheaper counterfit" deans those companies use.

I replace them all with real deans and do the soldering myself.

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04-11-2009 09:21 AM  8 years agoPost 5
helicraze

rrElite Veteran

Victoria - Australia

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Yep had this problem never ever again will i trust any deans that come on any lipo, straight off the go and new deans ultra on!

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