Bullet connectors on Battery/ESC
 

After reading the "are deans enough" topic I desided to solder 5.5mm gold connectors to my ESC and Battery. But what is the best thing to do? (So that the Battery connectors won't come against each other)
The best to me sounds: 2 Female connectors on the battery (with heatshrink ofcourse) and 2 males connectors on the ESC (Again with heatshrink ofcourse). Or is there a better combination? I'm a bit afraid that the + and - of the LiPo will touch eachother...

- Patrick

zip tie the wires an inch before the connectors, that way they shouldn't touch.

You could also use a female-male on the batteries too, that way you could never screw up connecting it to the esc.

WHy bother you are not going to gain anything at all. I'ts like adding 4/0 wire for starting your riding lawnmower. My systems peak nearly 2000W and I have't really had any problems that I haven't caused myself.

But if you just have to then use a male and female for each device to aviod polarity issues.

Jeff

Stagger the wires so one lead is shorter then the other..

recommended is :

male for -
female for +
shrinkwrap female and you are gonna be safe

Connections J57ltr, are a huge problem in electronics, I have seen it myself many times, all caused due to inadequate connections. You can never have 'too much', and there is no such thing as overkill. I am going to be using 6.5mm CC bullets right away as well, I have had too many Deans plugs wear out on me at the wrong time.

If you are not fusing the connectors together, or they are not melting on you, then you aren't really having a problem. Sure everything is going to get hot, it's little bitty wire run for short distances running insane amounts of current through them.

Deans are not bad connectors, but like anything else you have to be able to solder them right. If you heat them up too much you can actually reposition the pin and it will not make a good connection.

Yes there is no such thing as overkill on wiring, but if all you change is the connector I think you are missing something. If your connector is larger than your wire then something is wrong. Why not upgrade to10 or even 8 ga wire while you are at it? If you are not upgrading the wire too then you are just wasting your time.

Believe me I have seen my share of bad connections. My entire working life has been related to electronics from X-ray, to Downhole tools for the oil field industry to Audio and alarm installation, and amplifier repair/modification to wiring complete electrical systems for Rock Crawlers (just finished the Bronco from Monster Garage, you want to know about power hungry applications try dealing with a 10K # winch running on only12V with a 6.5 HP shunt wound brushed motor), to engineering and building systems for industrial processes, welding TIG and MIG, ya I would say I know a little something about bad connections.

You guys are all over the connections but there is never any mention of the wire where is the concern for the wire?

Jeff

I agree. If you are gonna address one weak link, address them all or the effort is wasted. Generally, if a part (wire or connections) gets warm/hot then it is inadequate for the task. Of course, you have to take into account how the wire may be hot simply from heatsinking action.

Going larger gauge would be nice, but it gets tough because these vehicles are pretty small and large stuff gets clunky fast. Pretty soon, the wires/connectors are gonna be bigger than the ESC! :smile:

If high current losses on the wiring/connectors are a concern, going with a higher voltage setup using a lower kv motor is the way to go.

Oh for sure, that's why I am using 10awg wire now, for two reasons:

-Resistance of course to match the connectors...
-but it sucks heat away more heat from components, motor, esc (especially on a Quark)


I wouldn't have gone with 6.5mm plugs if I didn't switch to 10awg, and it does make a difference in temps, they are noticeably cooler than 12... as well, when you are WOT, there are large currents like you said, and 10 will feed the system that much more voltage.

My next upgrade would have to be a larger motor of course, as a 1512 would obviously have higher resistance than a larger unit such as a 1515, or a T8 truggy motor.

Whatever you can do to make a more reliable high powered setup, I'm all for it. :smile:

I've converted to bullets & use 2 x females on the battery, with staggered lengths (the lengths fit better & avoid most touch scenarios), all wires are now 10g - except for the small diameter I used on the additional 1000u cap I installed (didn't have enough room for direct esc attachment)

I'll post a photo later, it looks very tidy

Nice clean setup man... but is that a capacitor shrink wrapped to the chassis brace? :no::whistle:

Yeah, I'm not happy with the placement but I'm hoping a flash of inspired genius will give me a better idea during the first run...before the brace melts!