Ryan im sure youve heard pf the ec5 connector, no wonder why ive felt heat from my connectors. Guess its good for 120 amps but up to bursts of 150 amps. Running 2 4s batteries in series 8s, was up to 148 amps of discharge, when i was running my infraction back then for speed runs. Great video. My connector i like is the ec5 connector
I read somewhere that the common used 12g wire batteries usually use are only good for like 80amps(off the top of my head). Pretty sure it was a "deans" article and they were saying over amped connectors didn't make a difference since the wire could only handle 80amps.
Good information Ryan, thanks! For my models, I use only XT60 or XT150, depending on the application. By using only 2 different connectors, I have the flexibility to mix and match batteries to different models and/or situations. The XT60's are my favorite, but beware of cheap imitation XT60's that are out there on the internet!
I used to use XT30s or XT60s for everything (Never dabbled in anything high powered so never needed anything bigger), though they are a pain in the butt to solder so I've started switching to EC5s.
Just got myself a new combo 120A esc and 4500kv sensored brushless motor for a 1/10 car. Battery is a 2s 5200mah 50c. I planned on using XT60 connectors because I saw people using them.
I have 2s and 3s batteries with jst connectors bought a 60a esc but I don’t want to solder other battery connectors as the hard body only allows jst into the battery tray
I use EC5 on my cars (1/10 scale). Soldering is a little tricky but it has two advantages : it does not need heat-shrinkable sleeves and once it is installed it is realy robust.
Excellent video. Thank you. I just today bought a castle combo, mamba x esc w/ a 1515 2200kv sensor Ed motor. The motor came wired with 6.5 Bill it connectors to plug in to the esc. Do I need to use a 6.5 or larger connector for esc to battery?
I like to use 5.5mm or larger bullet connectors on the battery. For most applications 5.5mm or larger will be sufficient. 6.5mm is ideal for high power output.
I'm kinda new to electrics, but have used the EC3. I think I may got to the XT60 though after watching this. Or just 5.5 bullet style. Is one easier to solder than the other?
For connector that are made up of one housing supporting positive and negative terminals, I place the female connector on the battery or power source. The male connector would then be placed on to the load side.
ryan i just bhought a battery lippo 7.6 12 cel ia it posible if i conected with esc 7.4 12cell help please because i saw one of your video it could dangeres also if you put the wrong batteries i dont want to make that mistake thank you leonard
Many hobbyists remove the supplied connectors upon purchase. I would expect the reasoning of these connectors being supplied is simply just about cost and nothing more.
I'm affraid, that just like literally everyone else on YT, You've made a mistake on XT connectors ratings. XT60(and both brothers) confusing name doesn't claim continuous current at 60A. It claims 30A nominal/cont, 60A max/BURST. There is like ONE website in Poland that gives a table of 60A cont/80A max, that table looks like specification table, but I'm guessing it's just the practical knowledge of the store guys. And so XT30 true value is 15A cont/30A burst, XT90 has nominal current of ONLY 40A. And this info is practically on every respectable electronics store website. Now, because of fear I've picked EC-5 100A rated connector(every RC website says that), for my 120A Novak Havoc 3S ESC/Ballistic 10,5t BL combo, which was my first RC setup and probably a big overkill for 2S used. But as I'm writing this, after years since making this (only)setup, I just found out EC5 doesn't have 100A cont rating, it's another 40A connector, just like XT90. ***So my question is, why all of us running underrated connectors and are not melting the plugs? Most people on YT running 8S Lipo(and more) 4x4 beasts with Mamba 240A ESC, even two of them, don't even have XT90 in there. Majority runs XT60 regardless of the setup. So how does that work? Let me also mention that 180A mentioned is nowhere near the top for connectors made by Amass, and that 8mm bullet connector nominal rating is......80A I've just ordered XT60 to swap my EC5 for the most popular connector, and again am worried :-/ Now going for 3S and not really sure if higher voltage means less current? Or does it really depends from not so powerfull motor installed which will never draw 120A from that ESC? Again wrote too much....
Hey Polish Guy. I'm glad you asked this question. There was a great article on this very topic that I read maybe 5 or more years ago that I can no longer find. Since I can not find this, my answer much like your comment, is not going to be a short one. Probably longer, let's dig in to it. Yes the AMASS spec sheet identifies 2 ratings as you have pointed out. You also mention the "true" value for an XT30 is 15A cont / 30A burst. One thing to identify here is what does a true rating actually represent? Current does not behave in the same way other parameters may. If you connect a 7s LiPo to a 6s rated ESC, that ESC is surely going to fail upon connecting the 7s battery. However pushing 20A to a connector rated for 15A does not mean it will fail. There is more to it then this. The question then becomes, what actually determines a connectors max. continuous current rating? A reasonable answer to this question is the maximum safe continuous current that can be passed through the connector within a safe maximum thermal limitation of the connector. The specified max operating temperature of the AMASS XT-60U connector is 120 degrees Celsius. The 30/60A ratings specified on the spec sheet do not list the temperature the connectors hit and control environment that they were tested in. This does not paint any useful picture for us. One may expect the max safe operating temperature of the connector to line up or at least come close with the specified current draw of the connector. In the case of the XT-60, it does not. When an XT-60 connector is run at around 30A continuous for the entire duration of a battery, there is not a significant measurable difference in temperature compared to ambient. When the XT-60 is pushed to around 50A, heat builds but is still reasonable and certainly not anywhere close to the rated max operating temperature. I prefer connectors to not increase significantly in temperature while in use. I would never like to see temperatures exceeding 60 degrees C (half of rated connector max operating temperature) on the hardest of runs in the hottest days of the year. If this does happen, I move to the next available connector set regardless of any ratings on connectors. The XT-60 has been tested to burst currents of 150A for 8 seconds without failure. This is a lot of power for a connector rated at 60A Peak, especially since bursts are more realistically less than 5 seconds for most RC car applications. Another test has demonstrated 180A for 10 seconds without failure. For this reason, it is very acceptable to run 60/120 numbers for the XT-60 as you will see everywhere. Continuous current is yet another area of opportunity for miss-interpretation. We can push ratings even further up as our batteries do not last an infinite amount of time. In fact, most aggressively run RC's will not last more than 5 minutes until the battery goes from full to empty. Because of this limit in time, it also creates an artificial meaning for "continuous" . It is uncommon in any industry for a manufacture to provide very conservative values for the ratings of the product. This is due to the understanding of leaving value (or money $$$) on the table that could otherwise be used to market the product. This is what I ultimately find so interesting but could be related to the next point. Another item to consider is that these connectors are not only used for RC but for other applications as well. Due to specific limitations in other industries, these connectors can be underrated to suit.
@@RCexplained Wow Ryan Thanks for the info. Seems like you hit a nerve with this topic lol .I use Amass connectors because they look beefy🙂 I built a 100mph plus car , 100c 8000 mAh 8s esc Castle MambaX. I'm still learning how to drive high speed but so far 90 pb and alot of mid 80s back to back, wires connectors and esc all cool so 8mm wire and Amass connectors work for me. You were very helpful along the way so Thank you so much🙂
@@RCexplained Thanks for long reply. One thing I omissed is the spec table for connectors also give nominal voltage of 500V. So the rating is at 500V(!?), which makes like EVERY SINGLE VIDEO on YT regarding RC connector ratings......pretty much useless and very missleading? My physics and maths memory is gone really, but simple formula allows us to calculate rated power handling and then calculate current again for voltage required-number of cells used. Numbers don't look realistic however, so I wonder what do You think about it? So for XT60, 500V*30A=15000W of continuous power rating, or as You kinda mentioned-partially heat capacity(?). Right away-not very realistic... For 3S 11,1V XT60 connector: 15000W/11,1V=1350A nominal and 2700A burst, which as You explained, especially burst rating we should take very lightly. It might be 0,5s, 1,5s or 5seconds burst, who knows. And off course the higher the voltage, the less current it can take. But for 2S Lipo it's ridiculous 2020A. Safe margin is still recommended, running conditions should be considered, also as You mentioned NO ONE wants having to disconnect a plug at 60°C, so if the rating is for max connector temp of 120°C, then divide the current by three, to get connector temp of 40°, then add some current, cause passing air at high speed will cool the plugs, temp to current flow isn't parallel due to air temp.....it's hard to estimate, as You mentioned. Similarly EC5 connector is also rated @500V, but 40A nominal, 100A burst. 20000W capacity divided by 11,1V=1800A, 2700A@7,4V BUT burst values for larger connectors is where the differences matters - 100A*500V=50000W; 50000W/11,1V=4504A; and 6756A@7,4V So again burst current for EC5 connector should be taken lightly due to unknown testing/conditions for rating tests, but it's MASSIVE! So for other readers - Amass gives all their rating @500V, so the calculations can be used for Deans/T connector, bullets, EC3, EC5, XT30/60/90, most of popular ones. However the results don't look realistic. It would suggest all of us actually run overrated plugs, and XT30 should rule the market for 3S Am I correct? Is there still hope for my brain power? Is there any grey matter left inside that empty horse's head? :-)
@@polishguywithhardtospellna8227 I typed out an entire post and apparently it didn't submit several days ago. Your math all checks out, however we can't limit a connector by power. Connectors are essentially limited by current. Current represents how many electrons you are forcing through the connector where voltage can be looked at as the pressure pushing the electrons. There's only so many electrons that can be forced through a connector before it starts heating up. Whether you operate the connector at its maximum safe voltage of 500v or 5v, the limit will still be the rated amount of current.
Hi LaMarkus Washington Sr, are you averaging 350A of continuous power? Or is this a burst happening for less than 5-10 seconds at a time. Very big difference! A 180A rating for continuous current on an 8.0mm connector is for maintaining 180A continuously for the entire duration of the battery pack.
@@RCexplained thanks for asking, but it’s only burst due to drag racing so less than 2 secs. I’m running a 1440 2700kv Cordova on an XLX powered by either a 6s 6400mah SMC 120c or 8s 9000mah Zee 100c.
Ryan im sure youve heard pf the ec5 connector, no wonder why ive felt heat from my connectors. Guess its good for 120 amps but up to bursts of 150 amps. Running 2 4s batteries in series 8s, was up to 148 amps of discharge, when i was running my infraction back then for speed runs. Great video. My connector i like is the ec5 connector
EC5 are good connectors. I do prefer the 5.5mm bullet over the EC5. EC5's are made up of 5.0mm bullets.
I read somewhere that the common used 12g wire batteries usually use are only good for like 80amps(off the top of my head). Pretty sure it was a "deans" article and they were saying over amped connectors didn't make a difference since the wire could only handle 80amps.
Good information Ryan, thanks! For my models, I use only XT60 or XT150, depending on the application. By using only 2 different connectors, I have the flexibility to mix and match batteries to different models and/or situations. The XT60's are my favorite, but beware of cheap imitation XT60's that are out there on the internet!
Sticking with 2 connectors is ideal. I can totally relate to mixing and matching batteries.
I used to use XT30s or XT60s for everything (Never dabbled in anything high powered so never needed anything bigger), though they are a pain in the butt to solder so I've started switching to EC5s.
Just got myself a new combo 120A esc and 4500kv sensored brushless motor for a 1/10 car. Battery is a 2s 5200mah 50c. I planned on using XT60 connectors because I saw people using them.
Hi SerxRox, I would prefer to use a larger connectors. XT60's will work if you don't plan on drawing more than 50-60A average
Thank you for sharing this information.
My pleasure!
I have 2s and 3s batteries with jst connectors bought a 60a esc but I don’t want to solder other battery connectors as the hard body only allows jst into the battery tray
I use EC5 on my cars (1/10 scale). Soldering is a little tricky but it has two advantages : it does not need heat-shrinkable sleeves and once it is installed it is realy robust.
EC5, are good connectors.
Excellent video. Thank you. I just today bought a castle combo, mamba x esc w/ a 1515 2200kv sensor Ed motor. The motor came wired with 6.5 Bill it connectors to plug in to the esc. Do I need to use a 6.5 or larger connector for esc to battery?
I like to use 5.5mm or larger bullet connectors on the battery. For most applications 5.5mm or larger will be sufficient. 6.5mm is ideal for high power output.
The A-10 model that you held up, where can I find one of those?
e-flite
I'm kinda new to electrics, but have used the EC3. I think I may got to the XT60 though after watching this. Or just 5.5 bullet style. Is one easier to solder than the other?
I find it easier to solder larger connectors.
Bullet for everything
Bullets are great!
I’ve recently been using castle 6.5mm polarized connectors.
Excellent connectors!
Using many years ec5 connectors my 6s 4082 1600kv buggy and arrma kraton 6s stock.
ec5 are good connectors.
Was running deans but now running 5mm bullets
Excellent choice! Big step up in power potential.
Thank you
You're welcome
I use xt90.
Great Connector!
For every device i use female connector and for wires male connecter
For connector that are made up of one housing supporting positive and negative terminals, I place the female connector on the battery or power source. The male connector would then be placed on to the load side.
ryan i just bhought a battery lippo 7.6 12 cel ia it posible if i conected with esc 7.4 12cell help please because i saw one of your video it could dangeres also if you put the wrong batteries i dont want to make that mistake
thank you
leonard
Which LiPo and ESC. Do you have a link?
@@RCexplained lipo 2s 7.6volt esc skyrc 120a
If your ESC is rated for 2-3s lipo it will be fine. Voltage is within the range.
I also don't get why batteries with really high discharge rating, come with plugs that are just ridiculously underrated for that discharge?
Many hobbyists remove the supplied connectors upon purchase. I would expect the reasoning of these connectors being supplied is simply just about cost and nothing more.
RC PRO PLUS solderless all the way around.from 8s up to 16s
Nice, I have not seen these before!
@@RCexplained look them up....you will LOVE them.......
I use a T-plug.
Awesome!
@@RCexplained don't know how much that is rated for but yeah 😄
I'm affraid, that just like literally everyone else on YT, You've made a mistake on XT connectors ratings. XT60(and both brothers) confusing name doesn't claim continuous current at 60A. It claims 30A nominal/cont, 60A max/BURST. There is like ONE website in Poland that gives a table of 60A cont/80A max, that table looks like specification table, but I'm guessing it's just the practical knowledge of the store guys. And so XT30 true value is 15A cont/30A burst, XT90 has nominal current of ONLY 40A. And this info is practically on every respectable electronics store website. Now, because of fear I've picked EC-5 100A rated connector(every RC website says that), for my 120A Novak Havoc 3S ESC/Ballistic 10,5t BL combo, which was my first RC setup and probably a big overkill for 2S used. But as I'm writing this, after years since making this (only)setup, I just found out EC5 doesn't have 100A cont rating, it's another 40A connector, just like XT90.
***So my question is, why all of us running underrated connectors and are not melting the plugs? Most people on YT running 8S Lipo(and more) 4x4 beasts with Mamba 240A ESC, even two of them, don't even have XT90 in there. Majority runs XT60 regardless of the setup. So how does that work? Let me also mention that 180A mentioned is nowhere near the top for connectors made by Amass, and that 8mm bullet connector nominal rating is......80A
I've just ordered XT60 to swap my EC5 for the most popular connector, and again am worried :-/ Now going for 3S and not really sure if higher voltage means less current? Or does it really depends from not so powerfull motor installed which will never draw 120A from that ESC? Again wrote too much....
Hey Polish Guy. I'm glad you asked this question. There was a great article on this very topic that I read maybe 5 or more years ago that I can no longer find. Since I can not find this, my answer much like your comment, is not going to be a short one. Probably longer, let's dig in to it.
Yes the AMASS spec sheet identifies 2 ratings as you have pointed out. You also mention the "true" value for an XT30 is 15A cont / 30A burst. One thing to identify here is what does a true rating actually represent? Current does not behave in the same way other parameters may. If you connect a 7s LiPo to a 6s rated ESC, that ESC is surely going to fail upon connecting the 7s battery. However pushing 20A to a connector rated for 15A does not mean it will fail. There is more to it then this.
The question then becomes, what actually determines a connectors max. continuous current rating? A reasonable answer to this question is the maximum safe continuous current that can be passed through the connector within a safe maximum thermal limitation of the connector. The specified max operating temperature of the AMASS XT-60U connector is 120 degrees Celsius. The 30/60A ratings specified on the spec sheet do not list the temperature the connectors hit and control environment that they were tested in. This does not paint any useful picture for us. One may expect the max safe operating temperature of the connector to line up or at least come close with the specified current draw of the connector. In the case of the XT-60, it does not. When an XT-60 connector is run at around 30A continuous for the entire duration of a battery, there is not a significant measurable difference in temperature compared to ambient. When the XT-60 is pushed to around 50A, heat builds but is still reasonable and certainly not anywhere close to the rated max operating temperature. I prefer connectors to not increase significantly in temperature while in use. I would never like to see temperatures exceeding 60 degrees C (half of rated connector max operating temperature) on the hardest of runs in the hottest days of the year. If this does happen, I move to the next available connector set regardless of any ratings on connectors. The XT-60 has been tested to burst currents of 150A for 8 seconds without failure. This is a lot of power for a connector rated at 60A Peak, especially since bursts are more realistically less than 5 seconds for most RC car applications. Another test has demonstrated 180A for 10 seconds without failure. For this reason, it is very acceptable to run 60/120 numbers for the XT-60 as you will see everywhere.
Continuous current is yet another area of opportunity for miss-interpretation. We can push ratings even further up as our batteries do not last an infinite amount of time. In fact, most aggressively run RC's will not last more than 5 minutes until the battery goes from full to empty. Because of this limit in time, it also creates an artificial meaning for "continuous" .
It is uncommon in any industry for a manufacture to provide very conservative values for the ratings of the product. This is due to the understanding of leaving value (or money $$$) on the table that could otherwise be used to market the product. This is what I ultimately find so interesting but could be related to the next point.
Another item to consider is that these connectors are not only used for RC but for other applications as well. Due to specific limitations in other industries, these connectors can be underrated to suit.
@@RCexplained Wow Ryan Thanks for the info. Seems like you hit a nerve with this topic lol .I use Amass connectors because they look beefy🙂 I built a 100mph plus car , 100c 8000 mAh 8s esc Castle MambaX. I'm still learning how to drive high speed but so far 90 pb and alot of mid 80s back to back, wires connectors and esc all cool so 8mm wire and Amass connectors work for me. You were very helpful along the way so Thank you so much🙂
@@RCexplained Thanks for long reply. One thing I omissed is the spec table for connectors also give nominal voltage of 500V. So the rating is at 500V(!?), which makes like EVERY SINGLE VIDEO on YT regarding RC connector ratings......pretty much useless and very missleading? My physics and maths memory is gone really, but simple formula allows us to calculate rated power handling and then calculate current again for voltage required-number of cells used. Numbers don't look realistic however, so I wonder what do You think about it?
So for XT60, 500V*30A=15000W of continuous power rating, or as You kinda mentioned-partially heat capacity(?). Right away-not very realistic...
For 3S 11,1V XT60 connector: 15000W/11,1V=1350A nominal and 2700A burst, which as You explained, especially burst rating we should take very lightly. It might be 0,5s, 1,5s or 5seconds burst, who knows. And off course the higher the voltage, the less current it can take. But for 2S Lipo it's ridiculous 2020A. Safe margin is still recommended, running conditions should be considered, also as You mentioned NO ONE wants having to disconnect a plug at 60°C, so if the rating is for max connector temp of 120°C, then divide the current by three, to get connector temp of 40°, then add some current, cause passing air at high speed will cool the plugs, temp to current flow isn't parallel due to air temp.....it's hard to estimate, as You mentioned.
Similarly EC5 connector is also rated @500V, but 40A nominal, 100A burst. 20000W capacity divided by 11,1V=1800A, 2700A@7,4V BUT burst values for larger connectors is where the differences matters - 100A*500V=50000W; 50000W/11,1V=4504A; and 6756A@7,4V So again burst current for EC5 connector should be taken lightly due to unknown testing/conditions for rating tests, but it's MASSIVE!
So for other readers - Amass gives all their rating @500V, so the calculations can be used for Deans/T connector, bullets, EC3, EC5, XT30/60/90, most of popular ones. However the results don't look realistic. It would suggest all of us actually run overrated plugs, and XT30 should rule the market for 3S
Am I correct? Is there still hope for my brain power? Is there any grey matter left inside that empty horse's head? :-)
@@RCexplained Hello? Any thoughs on previous post?
@@polishguywithhardtospellna8227 I typed out an entire post and apparently it didn't submit several days ago.
Your math all checks out, however we can't limit a connector by power.
Connectors are essentially limited by current. Current represents how many electrons you are forcing through the connector where voltage can be looked at as the pressure pushing the electrons. There's only so many electrons that can be forced through a connector before it starts heating up. Whether you operate the connector at its maximum safe voltage of 500v or 5v, the limit will still be the rated amount of current.
QS8 anti-spark
8mm or nothing 💪💯
@@furiouswolf777voodoo4 from this video I might need to switch to the 10mm because I’m averaging 350+ amps in my logs
@@LETUBME My speed run limitless I'm running Mamba X 8s Tp power 4070 and Zee 100c 8000mah. No problems so far. All the best to you and good luck! 🙂
Hi LaMarkus Washington Sr, are you averaging 350A of continuous power? Or is this a burst happening for less than 5-10 seconds at a time. Very big difference! A 180A rating for continuous current on an 8.0mm connector is for maintaining 180A continuously for the entire duration of the battery pack.
@@RCexplained thanks for asking, but it’s only burst due to drag racing so less than 2 secs. I’m running a 1440 2700kv Cordova on an XLX powered by either a 6s 6400mah SMC 120c or 8s 9000mah Zee 100c.