Deans - poor connection?! Recommendations?

[Mattwarner]

Ok I've probably answered my own question but I brought some cheap deans style connectors and spent an evening soldering away, which worked great for about a dozen runs, but now the connection is really bad and plugs have to be pushed half way in to get a good connection, my question is what should I go for to replace the deans and how to avoid getting rubbish again? At the time I just searched "deans connectors" on eBay and brought from a UK seller so thought they'd be ok?

Thanks

[lectriglide]

Don't have any idea what set-up you have, but most on here use 5.5mm bullets at a minimum. The deans are rated to about 50 amps, the HK ones handle much less efficiently.

[jamespl]

I use ec5s with no issues plus they are much easier to solder onto the huge wires that turnigy put on their batteries with a mini blow torch solder pen.

[Mattwarner]

Thanks, I am only running 7 cell nimh's so don't have to worry about current!! I've just ordered some 4mm bullets fingers crossed I will have more luck but it's only to get the boat running properly before it goes on eBay along with batteries and charger

[carlcisneros]

even though you run 7 cell NiMh batteries, go to the 5.5mm bullet connectors.

Something about "an ounce of prevention is worth a pound of cure."

[Diesel6401]

EC5's or 5.5mm or higher. Don't waste your time (or money) on other stuff.

[detox]

I have used Deans with good success. As long as amp draw is not too high. Here are two 3300mah 4s packs paralleled on my UL-1

[Boaterguy]

you can try prying out the little tabs on the male connector, it may make a tighter connection

[JackBlack26]

Deans are good for 60 amps(same as 3.5mm bullets), 4mm bullets are good for 100A, 5mm bullets are for 150A and 5.5 are for 200A. These #'s are continues and don't consider spikes.

[driftah]

5.5 mm or 6.5mm bullets and dont look back bud,just dont get the ones from hobbyking they are junky...maybe try the castle ones they seem to get a tighter fit as well which will save you a swim lol

[JackBlack26]

I have had some of the HK ones, ether of the 2 part #'s listed, and they do fit a bit loose but after ramming a 2.5mm allen wrench down the center of the male end they fit perfectly snug and become almost impossible to pull apart. I personally will continue to use them as I have yet to have them fail, come unsoldered, or break.

[driftah]

The castles are just a better quality conn. I have hk ones and the plating wears easily imo they are strong yes but need to be fiddled with

[JackBlack26]

I do agree that the plating wears rather quickly when used as battery leads. You do have a very good point there. For motor leads they are great though.

[Mattwarner]

Thanks for all your comments I will go with the 5.5mm, the deans still seem tight but the tabs are worn and obviously arent working properly

[driftah]

ya safe is good with boats,we all learn that the hard way.you can cheap out on land and air based stuff but a boat that is floating fire is hard to watch hehe.And jack you have a good point for motors they dont get so much in and out duty like lipos do,save a few bucks there bro.