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My connector became smaller in diameter and therefore it became loose to connect into the battery. anyway i could make it tighter? i can't use a shrink tube because it's connected to a bettery..
for a number of reason pin fit can be distorted and loose, the female inside diameter is slightly increased, the male pins springs get crushed slightly, cheap pin, bad metals, rocking the connection together or apart, so on. When I get a loose fitting I replace the pins right off, use these and have had no real issues. If you can't replace them you can tin the sides of your male pin with solder and see if that helps to shim it out in diameter.
Whenever my connectors are getting loose, i take a needle, and bend the springs back out again. It helped me each time(altough, it was needed only a few times so far)
Hope this helps you guys.
Another thing to think about is some of the 3.5mm kits come with plastic insulators and depending on where they are if you will be disconnecting them alot it may be something to consider. Or you can just shrink tube them if they will not be removed very often.
These are the size of connector that will fit into most of the chargers output jacks for your power leads to the battery you are going to charge. Most power supplys also use the 4mm connector as well.
Shrink tube is the best thing to use and I would sudjest you always use it and colour code where needed.
there weight is quite minimal and between these and 3.5mm is probly less then a gram per one so depending on your amps but i would worry about saving weight with esc motor or batteries more so then these and if u need 4mm im assuming your copter is on the large size so i wouldnt worry about it and these are good quality connectore go on my ntm pulling 50 amps
When you want to save weight you could also solder everything together without connectors. Just check if the motors are spinning in the right dircection first.
Just check temps after use, too much heat means too much resistance and therefore, power loss. Depending on your flying style, if always on full power maybe switch to 3.5mm sooner or later.
Hi are these bullet connectors? If so are they suitable for a 25amp esc 28mm motor? ALso if someone could link or explain what size connectors are needed for different esc sizes? Thanks
Yes, these are bullet connectors, and yes are suitable to your 25amp ESC and 28mm motor setup. To be hones, you could go with 3.5mm bullet connectors to save some weight. The 3.5mm bullets are rated up to 50amps, the 4mm, I reckon, are rated up to 80-90amps, and the 5.5mm and above are rated for way over 100amp.
I need much more female than male, because i make some safty caps of them. Can i buy a package only female? Perhaps it is possibel to make such an offer.
I believe they won't accept such an offer, as they sell them standard 10 pairs/bag (until now).
However,you can ask the 24 hour online support in order to get a more valid answer.
Alternative,you can search on ebay for "4mm female connectors".
Could 4 12AWG wires fit into the soldering part of this connector? I want to make a 'branch' of 4 individual cables with this connector as it's end point for the Lipo I'm using.
I know these are male and female connectors, but if it fit i use only the male connectors.
It's for sadle packs batteries, the plugs is females PK 4mm connectors...
Thank
Recuerden cuando vallan a soldar un nuevo conector a la bateria deben hacer uno por uno no los dos a la vez o sino van a dañar la bateria mas un susto
As the other guys say, NO they don'y have red plasic but have you thought of using Heat Shrink? I've been using it on all my connections and joins for years and found it does a great job and is very inexpensive. For these connectors 6 mm heatshrink will do very nicely. It shrinks roughly half it's original width so 4mm connectors will handle it and the wire as well. Plus you have the added bonus of them taking up less room if you happen to short of it. Good luck
Tyler no but as Waterlogged said it is heah shrink and it come in many colours. You can find it here. Hardware & accessories. > Shrink Tube. I hope this helps
OK I've had enough of you and your games. I'm on RCIndia at the moment and I'm letting them know what a scamming mongrel you are. I did warn you but no you won't give up.
sehr gute qualität sind wie die aus deutschland aber kann man ja erst nach ein paar saison's beurteilen ob die goldbeschichtung genau so gut ist aber für den preis kann man nix falsch machen
no plastic comes with them, i have recived my set last week.. Good connectors..
As the other replyed, buy some heatshink, Red Or Black or both depends on your usage =)
Yes you can. ESC's usually come without power connectors fitted. Use 4mm connectors on your ESC and battery pack with 5mm heat shrink, good for at least 70A plus.
Are these the same bullets that fit the EC-3 connectors or are the #.5mm bullets the ones that would be interchangeable with those that are used in the EC-3 Connectors? I need more of the kind that fit the EC-3 connector, as I have some EC-3 plastic housings left.
No it won't feed the EC-3 connectors
as in the bullets you go 1 hollow and one full
and on the EC-3 both are full (no hollow pin).
And no, it won't feed the 5mm ones, thats why it called 4mm :)
I suppose it would be. You'd need to cut out a part of the cup on the male plug and solder the wire in flat. You'd end up with a connection that is weaker, but it should work.
its because i have at savage flux and the connector and wire can't go out of the side. so i need a 90 degree connector like them i have now. i just need a pair more for som more batterys and some 4mm "bullets" have a half cup witch makes it possible du make a 90 degree cable
Yep, these ones don't have the half cup. As I said, you will need to cut some of the cup out so it will then become "half cup". They are as they are in the picture above. It is possible though, I'd cut the part out where the hole is. And because you don't then have that extra contact surface, the joint soldered won't be as strong. It should still work for what you want though.
Yep, the male one that is standing also has that hole in the end cup area like the female one does, so just use a drill or dremel to cut out that area. Also yes, the polymax already have the cut out you need. They would be easiest, but make sure to spread out the "spring" connector a little on those to get a good contact area when you plug them into the battery.
What is max. current they can handle BUT WITHOUT becaming warm/hot. I need to use some connectors not in RC and they will be really close to other electronics.
Up to 80 amps at 11 volts, this is real. Heating depends on the quality of soldering. these connectors can not solder wires of large diameter for greater power.
You should not go over 40 Amps, otherwise the delivered volts also would drop down. For higher current you should use bigger connectors like 5,5 or 6mm
Some time ago I made tests of those connectors. And with they temperature it was: 10AMPS: 1 deg. C after 20 minutes* 15AMPS: 2.5 deg. C after 20 minutes* 20AMPS: 5 deg. C / 20 min* 30AMPS: 5 deg. C / 10 minutes (ten, not twenty)* 40AMPS: 8 deg.C / 10 min. So you can decide what is still OK for your application. Connectors were measured WITHOUT heat shring or any other cover.
To be on the sure side , I count the diametre 15 times to get max. amps. 4mm x 15 = 60 amps, if the quality is unknown. But also it´s the soldering an the diametre of the cable, that also counts.
by "really close" I'm assuming you mean "possibly touching"? In that case heat shrink tubing is strongly advised. Using standard tubing these connectors should handle approx 50-60A at 11v. Bear in mind that higher voltages lessen the amp capacity (see ohm's law). and that it's the resistance that causes heat.
I have used 4mm gold connectors at up to 190Amps, but they got quite hot. Not recommended. For a constant current loading I would limit these connectors to 60Amps. Peak currents up to 100amps.
Hello all, This 4 mm connectors basicly are good up to 90 Amps. But this is the absolute maximum. I ride them in a 1,40 mtr. ME163 with scorpion motor at about 85 AMPS. If you go higher than 90 you should use the 6 or 8 mm Version. I can highly recomend this gold connectors. Used alreayd hundrets of them in various applications in my club !!
On higher voltage applications bullet connectors can be a better option as the " high voltage arc" when connecting can damage deans over time. However be sure to use sufficient heat shrink to entirely cover the female plug to avoid shorting your battery.
This depends on the utilization, the Deans connectors are typically used between the battery and SpeedControl these shows that you are normally used in the connection between motor and SpeedControl
These fittings are easier to connect than a Deans, and the tension in the spring makes good connection, deans tend to loose the spring tension fairly quickly. Always make sure to use a male and female when connecting batteries, to prevent accidently reversing the polarity and shorting the battery out
No i odnt think so. the XT60 connectors are better then the deans. Way easier too solder and feel more tighter of a connection.
These are good for the Connections form your Motor to your ESC. the XT60/deans are good/normally used for your Battery too ESC.
Hope this helps
These are not designed for connecting the battery, but between the esc and motor ext. they are not much good for connections that you connect and disconnect often
I just changed all my Deans to XT60 plugs,
they are brilliant!! heaps better to solder and much better connection. plus hold more www.link
these are genreally used for motors rather than batteries, their lack of polarity marking would make it really easy to misconnect your pack and blow your ESC up. Try XT60s, much nicer to solder than Deans and they connect and disconnect better too.
This gold chips are much better than the deans because they have a larger surface area through which current can pass. Furthermore, the dean tend to be large, which can cause them to separate.
well, it can take more current than deans, but it isn't to comtrable
if you want you can buy the EC5 connector, which can easly take 120A current, and is realy easy to
solder and coftrable to work on
if you want the connector for lower current applications (lower than 50-60A) you can use EC3
connectors
Actually deans are usually used to connect battery to ESC/BEC and it's critical to connect right polarity. So the answer for this question is NO, because it allows you to change polarity and damage your ESC. However it's great for motor connection.
these are a lot better than deans because the have less resistance and are a lot more handy as they can be used to connect to chargers and are commonly used in larger li po batteries
Yes, this is better for me, because the preparing the deens is more difficult then 4 mm connector.
The avarage continous amp is lower than the 4 mm connector has know. I suggest this connector for 1/16-1/10/-1/8 electric car
I think they are a lot better than Deans.... moved all my kit over too 4mm Gold with his and hers heat shrink over the ends to prevent shorting... good for 70-80amp, above that I would look at 5mm connectors
really depends on your application. All the connectors do is supply the current (Amps) to the motor/speedy, what ever your application is. Deans are great for quick and easy change overs. 4mm corally plugs (banana plugs) are needed for some batteries. If your application requires very high amperage, go the 4mm connectors. Deans are fine for normal application.
I wouldn't say they are better, but they are as good as.
I use deans on my battery to ESC & the 4mm bullets on most of my motor connections.
I don't like using bullets on battery to ESC connections, I've seen too many guys burn up ESC's from not paying attention.
The generic deans have worked great.
Problems with deans by most users have been because of over heating the connector while soldering.
Depends on what current you will be putting through the wire however most RC applications use around a 12-14AWG silicone wire for high current and lipo applications. Hope this helps !
If you are you using this thread is because you need that many amps go for it. For a wire with a diameter like that is best to use the gold 6mm or even 8. If you use these connectors of 4mm with much current can melt the solder because it overheats.
AWG gauge 8
Conductor Diameter Inches=0.1285
Conductor Diameter mm = 3.2639
Ohms per 1000 ft. = 0.6282
Ohms per km = 2.060496
Maximum amps for chassis wiring= 73
Maximum amps forpower transmission = 24
Maximum frequency for100 skin depth for solid conductor copper = 1650 Hz
This cable is too tight for 4 mm connector. I suggest the 12 AWG cable.
im pretty sure you cna. just strip off the insulation and iff it doesnt work cut sum copper off the tip and it should fit. just cover it up with shrink tubing
The holes really aren't big enough for anything larger than 12AWG wire, but you could just solder the wire in and around the back of the plug (assuming you're talking about mulit-stranded 8AWG) if you need to. By the way, what on earth are you doing that needs 8 gage wire? :P that's huge, I have jumper cables that are 8AWG.
You can use them on thicker cable but you will have to break some of the cable. I suggest you use the right size connectors for the right size cable to avoid anything going wrong.
These connector's really shouldn't be used at anything close to 100Amps. 12AWG is more than sufficient for such an application. If you need 8AWG wire for the currents you are running, use 6mm gold plugs.
Yes, you can use these for motor to ESC connections. They work great. Easy to solder. Tight, high amp rated, and they make it easy when, like me, you switch motors and ESCs on planes to find the best fit.
Yes, and they are an exellent choice. Been using it for everything (for now up to 40amps) to keep a "standard" on my motors and escs. Remember to buy 5mm heat shrink tube to protect the connectors from each other.
They came on one motor I bought (KD 36-28S Brushless Outrunner 1140Kv - which burnt out after a few short flights), but all the other motors I bought using a 25amp esc, have the same plug but in the 3.5mm size.
You can use them for motor-ESC connections. But usually motors come with the smaller 3.5mm conectors, IF they come with connectors. I prefere to solder motors directly to the ESC. I like this 4mm Gold connectors for battery connection with 5mm shrink tube.
Thes are the common plug/socket for motor-esc connections, the common wiring is the male to the black negative wire and the female to the red positive wire
Yes they are sometimes used for those connections. Depends a bit on the size of the ESC and motor. If you run a small motor you can use smaller connectors, and if the motor is HUGE you might need bigger connectors that can handle more current.
Yes, that's what I use them for, and they will carry a fair amount of current between the three of them. You could use them to connect battery-esc, but I would recommend the ones with plastic isulators around the plugs www.link
which also happen to be cheaper. Maybe they're lower quality, but they're at least insulated. But for motor-ESC these work great for high-current systems.
yes they can be used for that. I can not say if they will fit any existing connectors on your motor or ESC, but you can replace any existing with these. very nice, good snug fit.
You will need shrink tube to go over them as well.
can be. i use them all the time. i either use 4mm connectors or try to match those supplied with the motor. i always use gold connectors for motor-esc connections.
yes, as long as i can remember, i use this connector to make a charging leads on my iCharger 106B (from the charger to battery for the male connector and also from power supply to the charger for the female connector)
If you are referring to plugging them into a standerd charger output , I would reccomend standerd bananas as opposed to bullets . Look on this site under wire and connectors , best price I have found yet. hope this helps , Ken
yes, of course. they fit in the most chargers. i try to have 4mm system all round. lately with so much high voltage packs i also use 6mm but the end that goes into charger is 4mm
Not true. The item, HXT 4mm Gold Connector w/Protector includes 10 pairs of connectors and 10 protectors for 1/3 the cost of these. Although these have a 26g shipping weight advantage over the HXT set, the HXT set is still a better deal even if you don't use the protectors that come with them.
Not true. The item, HXT 4mm Gold Connector w/Protector includes 10 pairs of connectors and 10 protectors for 1/3 the cost of these. Although these have a 26g shipping weight advantage over the HXT set, the HXT set is still a better deal even if you don't use the protectors that come with them.
Great connectors for my electric model. I use the 5mm shrink tube to isolate these from each other. Good value for money. highly recommended. I have tested them at 80 amps. these work great. !!!
1 comment. Reply..
Overall Rating
B.Tikka
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UNRATED
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24 thumbs up!
You simply can not get any better 4mm connectors for this price. I recommend them to everyone. It is a good practice to connect the male and female connectors together during soldering, so solder couldn`t flow into them.
4 comments. Reply..
Overall Rating
PhoenIX_rc
338 likes
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20 thumbs up!
Real weight is 2,56 g for pair. The hole will fit up to 10 AWG wire. They are tight enough to not come loose by accindent.
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stefan lecheler
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13 thumbs up!
Good quality, easy to solder. Fits also to other common 4 mm gold connectors.
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Hrvoje Kreso Lovric
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10 thumbs up!
Decent connectors, although spring could be stronger. Resistance is only 0.3 mOhm, comparable with brand name connectors.
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