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Lipo Connectors?

Old 07-18-2011, 02:17 AM
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Default Lipo Connectors?

What kind of connectors are you guys running on your batteries? I'm having problems with my ESC and I'm pretty sure it's a bad JST connection. One of my gen aces batteries also has a loose connection. I'm thinking it might be time to go a different direction. I dont want to have to buy a $20 crimper to run JST. Right now I'm flying foamies so weight is definitely a factor. I tried searching here and the google and nothing concrete.

What are my options? Micro Deans? EC3?

Last edited by [email protected]!; 07-19-2011 at 06:15 AM.
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Old 07-18-2011, 02:30 AM
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For small stuff I assume?

Micro deans are tough to beat.

Mike
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Old 07-18-2011, 03:09 AM
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Originally Posted by [email protected]! View Post
What kind of connectors are you guys running on your batteries? I'm having problems with my ESC and I'm pretty sure it's a bad JST connection. One of my gen aces batteries also has a loose connection. I'm thinking it might be time to go a different direction. I dont want to have to my a $20 crimper to run JST. Right now I'm flying foamies so weight is definitely a factor. I tried searching here and the google and nothing concrete.

What are my options? Micro Deans? EC3?

Micro Deans are great for the tiny stuff. Personally i have standardized ALL my electronics to the regular Deans (or T-Plugs), even my small stuff because it's a bit less confusing to mix up polarity when soldering, but thatís just me.
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Old 07-18-2011, 03:39 AM
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About half of us like deans. The other half like ec3. There are a smattering of other who like some other connectors but its really between deans an ec3.
I prefer ec3 cause they are extremely easy to solder and more and more oems are starting to use them.
But that's what works for me.
Try a deans connector. And try a ec3 ( or for the small stuff an ec2 ). Then after that figure out which you prefer and go that route. They both have advantages and disadvantages.
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Old 07-18-2011, 11:57 AM
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Henry Sistrunk
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I use nothing but Deans.
Henry
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Old 07-18-2011, 04:12 PM
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This is just me.
EC3 for most models.
EC2 for light duty.
EC5 for Heavy Duty.
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Old 07-18-2011, 04:21 PM
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If you buy from Hobbyking, your best off going with HXT60 connectors for most applications. and HXT 4mm bullets for larger applications. This is because that's what comes on HK batteries these days.

Personally I use EC3 / EC5 and mini JST connectors.
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Old 07-18-2011, 05:55 PM
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Dean's here too. A lot of the people who speak aganst them point to the myth that they are hard to take apart. Fortunatly for me the person who taught me how to fly also taught me how to solder, including the correct way to solder Deans connectors (which ironically, is exactly the way the instructions say not to. Go Fig. ). As a result, all of my Deans connectors also disconnect when I want them to without any problems. So the fact is, do it right and they will work.

Last edited by FlyWheel; 07-18-2011 at 06:11 PM.
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Old 07-18-2011, 06:08 PM
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I started a poll on this just for fun:

http://www.wattflyer.com/forums/showthread.php?t=63091
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Old 07-18-2011, 08:59 PM
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Thanks for all the great advice. I definitely have some connectors to check out. I like the look of easy soldering from the EC3's and 2's. I'll get a few of each and decide from there. In the meantime I just picked up a JST pigtail to see if that will fix my ESC issues.
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Old 07-19-2011, 01:14 AM
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WHAT?? Are you guys blind? You can't see me and others saying that the best by far are Power Poles? Seriously, they are great and crimped, proper Power Pole tool, is a better connection. Lots of us here swear by 'em.
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Old 07-19-2011, 03:20 AM
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Big fan of Deans
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Old 07-19-2011, 06:10 AM
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I think power poles cost just about as much as cheap 2s & 3s batteries.
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Old 07-19-2011, 09:08 AM
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Originally Posted by [email protected]! View Post
I think power poles cost just about as much as cheap 2s & 3s batteries.
That's interesting. So where can I get these 3S batteries for less than 2 dollars ?

Steve
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Old 07-19-2011, 02:00 PM
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Originally Posted by slipstick View Post
That's interesting. So where can I get these 3S batteries for less than 2 dollars ?

Steve
That last 2s 450 I got was $2.80 from Hobbypartz.com. I think the 3s was $3.40. I couldn't find a power pole connector for less than $2.00.
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Old 07-19-2011, 02:09 PM
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Originally Posted by [email protected]! View Post
That last 2s 450 I got was $2.80 from Hobbypartz.com. I think the 3s was $3.40. I couldn't find a power pole connector for less than $2.00.
You are not looking in the right spot. As little as $0.64 a pair in bulk. I generally buy 25 pairs at $0.80 a pair. The housings can be reused and the contacts are very cheap 30 amp for $0.14 each.

Try:

http://www.powerwerx.com/

Remember also that the amp rating given for PP is "Hot" so I regularly use the 30 amp contacts to 50 amps and the 45 amps contacts to 80 amps. No issues thus far.

Mike
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Old 07-19-2011, 02:12 PM
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Originally Posted by rcers View Post
You are not looking in the right spot. As little as $0.64 a pair in bulk. I generally buy 25 pairs at $0.80 a pair. The housings can be reused and the contacts are very cheap 30 amp for $0.14 each.

Try:

http://www.powerwerx.com/

Mike
Thanks, I will definitely check those out. My google search definitely discouraged looking into power poles.
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Old 07-19-2011, 02:35 PM
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Originally Posted by [email protected]! View Post
Thanks, I will definitely check those out. My google search definitely discouraged looking into power poles.
Have no fear of PP connectors they rock.

See what Denny has to say here - He used them professionally with a pretty good record.

http://www.wattflyer.com/forums/show...8&postcount=15

Mike
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Old 07-19-2011, 05:51 PM
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Originally Posted by rcers View Post
Remember also that the amp rating given for PP is "Hot" so I regularly use the 30 amp contacts to 50 amps and the 45 amps contacts to 80 amps. No issues thus far.

Mike
Places such as www.mouser.com list the current rating of those PowerPole connectors as 45 Amps. (Note that these units are available in lower current ratings, using the same plastic shell) That rating is likely in a location with zero air cooling. In our models, air cooling is readily available. I also run my PP's at 80 amps peak with no concerns.

By actual measurement, at 80 Amps those PP connector pins would be heating up at a power dissipation of about 1.5 watts. Even a small amount of air circulation will keep them cool.
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Old 07-19-2011, 06:31 PM
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Interesting thread and I only saw XT60s mentioned once. I have personally switched to these so all I ever have to change is my ESC end and not battery ends every time I buy them. Come apart easier than EC3, and a good solid connection, I don't think they are any harder to solder than Deans and I like Deans too, but just made sense to switch to what batteries I buying the most of. For my bigger stuff I use the 4mm Red Bullet Connectors.

BTW most in our club are starting to go that route too, and I even noticed one of the LHS putting XT60s on the ends of their batteries they are selling.
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Old 07-21-2011, 12:05 AM
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Please remember that P Poles require a special crimper tool ($$). You cannot just smash them!
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Old 07-21-2011, 05:22 AM
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I hate Deans - except micro-deans.

Power Poles rock!
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Old 07-21-2011, 12:45 PM
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Originally Posted by dkrhardy View Post
Please remember that P Poles require a special crimper tool ($$). You cannot just smash them!
I soldered them for 3 or so years with no issues. But love my crimpers now.

Mike
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Old 07-21-2011, 09:01 PM
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Naturally, the original and best always get left out. After losing two good models to Powerpoles developing a distaste for shifting power, I tried Astro Flight's 'Zero Loss' connectors.

Never had a failure, using them in about everything from my 36" VSP to the new 52" Eva sports aerobatic ship. Easy to solder up. Very smooth sliding together or being pulled apart - not something those yellow chinese connectors can be accused of.

A plus is that they are effectively shorter than most other connectors.

I've used them at 40 - 45A with no issues. Don't see me going above that limit, so as Astro connectors have now gotten silly expensive, my stock is now carefully horded.

Shame the chinese didn't rip them off too.

D
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Old 07-21-2011, 09:18 PM
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They are just way too much money.
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