How To Properly Run 6s Packs On Your 4s Builds 😱 6s Battery VS 4s Motor
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- เผยแพร่เมื่อ 8 ต.ค. 2019
- In Today's video we learn how to put 6 cell batteries on 4 cell quadcopters. We even learn to do make it do both! And it's all about how to properly set up a Output Limit. It is commonly known to put a throttle limit in order to get away with running a 6s battery on 4s motors. If something were to go wrong you could easily smoke your motors, or even your entire quad. Setting a output limit properly will prevent that from happening and allow you to have all the 6s fun you want on your 4s build!
We take it a step further and we learn how to set it up on auto profiles so that way you can still use your 4s rig to fly 4s batteries, no extra work needed, when you plug it in.... it automatically detects the voltage and adjusts to the correct profile for that battery's cell count!!!! I know.. i know... that's amazing!!!! Let's Go!!
The simple equation you will need is:
"Desired 6s Kv" ÷ "Actually 4s Kv" x 100 =
"The Percentage Needed" a.k.a "Magic Number"
Auto Profile CLI Command:
set auto_profile_cell_count = "The Cell You Want"
CLI Command For Setting Your Output Limit/Percentage
set motor_output_limit = "Your Magic Number"
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BE AWARE! this is a great video. However, Ive burned two T-Motor 2550kv and one ESC by doing this. The cables inside the motors melted down after a few packs creating resistance and overheating the motors. Check your motors every time you finish a pack. If it’s too hot continue lowering the output limit or you could try tuning your quad better. *Like this comment so other people become aware.*
Can you elaborate how it happened? did the trick worked or did you overpushed your motors like 2550kv to 1900kv 6s? you ve said "after few packs" so I understand that it doesnt burn it right away. Am I correct?
it s probably not the power out but the PIDs. The D is way to high for 4s. The PIDs bypass the motor output limit/scale . Please tell us if you had any luck :)
@@zafosinferno888 Well after seeing this post I have asked this at Betaflight Slack channel. Some people replied that they had no issues . I am copying Tehllama42 's reply here :
" I have about 13 quads on remapped motors that all run 6S with motor KV above 2000KV, so if it flies on 4S, you will be fine on 6S (but highly recommend building a 6S PID tune with less master slider, and throttle limiting)" and "you'll probably be fine with dropping the master slider two ticks, and starting off with the throttle limit around 72% at the motors (and if you like limiting from the transmitter, running 67% there). That bit of extra overhead is for the PID controller to use."
I am going to take these advices and start PID tuning from there.. That being said currently I have no 6s battery and need to order one..
And I am thinking that zafosinferno888 guy might have used Drainman's magic numbers but his KV is higher. That might be the reason afterall
@@FrenzyIncarnate thanks that is some insightful info :)
I lost two quads. One went out suddenly on the first pack through it. The other one was the same FC different ESC. Motots got so hot it melted the solder off the racewire on one of the motors, but I got through six races I believe. Not sure if that would make a difference. Think I'm just gonna be safe and get motors that are meant for it.
Dude. You are the man. Answered all my questions without asking them. Thank you so much. Subscribing now
Good explanation and straight to the point, the auto-select was a nice bonus
Thanks....just what I needed to see. Great walk-through!
thanks brother for this information as this just helped me use all my old motors i have laying about, saved me some monies 100%
Very clear, i was able to follow along no problem, flight tested right after and works, thanks DrainMan! 💯👊🏻🔥🔥🔥
You are a wealth of knowledge. Thanks brother. I really appreciate your teachings. Keep up the great work!
You’re friggin’ awesome, Drainman!
Great walk through! I have a bunch of 4s that I was hoping to convert to 3s on a new build - this seems like it will do the trick.
just found this guy, absolutely amazing
thanks DrainMan. great vid. set it up and will try tomorrow.
Awesome video Man!!! Just subscribed!! 😎
Tried this today and it's stunning. Best improvement of Betaflight 4.1 I'd say ;-)
Wow man this is sick, thanks for the guide!!
Love you Drainman- Thanks!
Whoa! What a magic process, wanted to use my 1950 as 1750 on 6S and taking it out to field now. Hope it works, thanks mate!!!
This is a great way to get different kv for different task or builds man based on what your doing IE long range ect !
Great info bro!:) 👍🏻🤗🍾
Right on Drainman🤘🔥
That's badass. Thanks man!
Brilliant Drainman. I just received HGLRC Sector5 which I ordered with 4s motors but is 6s capable otherwise. Perfect opportunity for me to try this. Thanks Bro!
Hot damn!!! That's was freaking amazing
Great video, subbed!
this is nuts.... I'm totally a newbe with drones and ..I was just wondering which 6s motors to buy for my quad in order to be able to use brand new 6s batteries .... with this.... i have not to swhitch motors! Thanks. Simple but elegant trick. Best regards from Mexico
this is awesome man! subbed right there!
Thanks Quebec!
looks like the hobby has another josh bardwell, excellent info man thanks for sharing your knowledge. new subscriber here.
Thanks man. !!! New subbed.
Bro. Thank you. I put a 6s 3000mah lithium ion pack on my iflight nazgul 4s and got 15 minutes flight time in windy conditions with full size gopro. I got some bi blades coming soon. I have the motors running at 1550 kv. Crazy!!!
Damn yeah bro the way you explain is amazing 😉
C'est une génie ce mec, merci beaucoup ! Much Love
Great video. Just subscribed. Nice clear and to the point.
Thanks Spider!
Great video! Thank you!👍
Thanks Josa!
thanks bro.. nice info
Like always Drainman is on point. 🙏
Drainman hellz yea just finished doing this in bf been fly 4s since I started now I can fly 6s sweet man thanks
Very cool , thanks.
Thank you, that was amaizing
Love it. Dual purpose video. How to limit motors AND get different PID/rate profiles for each battery type.
1st vid ive seen of yours. =sub.
Thanks Xan!
Thanks for this info
Thank you man you just saved my life
I almost went and stuck a 6s on my 4s Nazgul5 until I watched this, thanks for the info. I think I'll just buy a 6s drone for convenience. Just Subbed. Keep up the good work man.
Just an FYI, you can probably spend 60 bucks on 4 new 1800kv motors and swap them on your nazgul, and you can run anything from 2s to 6s on it with zero problems. The esc and fc on that drone can both handle 6s I believe.
Thanks you very much 👌😉
Great video! Thanks for sharing with the community. Do you know how this may impact motor efficiency and flight times?
Will the motors run hotter?
awesome thanks needed this info
men this was a great freeking video thank u DrainMan
Thanks Brother Nice Video Very helpful
Thank you! 🙌
You're awesome. Thanks for that.
Knowledge never gets old
Great vid it would great to. if I wanted to remove it from a profile what would I put in a cli thank you
Thank you 👍
Thank you
Freaking awesome!!!
You have to laugh, you just did with JB tried to do.
Great way to work from 4 cells to 5 cells too. Thanks!
You're pretty good at this youtube stuff. Keep it up.
Thanks Ishy!
Why nobody talk about this. Thx bro that was one question i had for so long .
very cool added your channel!
Bro how do you know all this cool stuff ? That is so awesome , thank you 👊
Thanks Phil!
Grate video
Followed your setup to the letter and plugged in my brand new stack which is 6s rated and nothing but smoke!!! GREAT TUTORIAL!!! Ive been flying since 2015 also. Not my first build in anyway!!!
Awesome!! 🎉🎉
Smoke stopper?
It flew fine on 4s. Then about 10 seconds of mild hovering on 6s. Motors quit spinning so i unplugged. No continuity issues whatsoever. Pyro sent me a replacement esc but its not even reading them in blheli. The original esc still seems to work on the computer. It shows 4 escs. Flashes fine. Switches all work in reciever tab. But will not arm now. I have no warning flags either. Tried rpm filtering in and off as well as flashing from 3.5.7 through 4.1.3!!! Iflight said send it to them and theyll take care of it. So xustomer service is great from my experience. Just had bad luck.
Also its not even pulling 12 amps on 6s at about 30% throttle. I cant imagine it hitting more than 30 amps per esc at the absolute maximum
thanks boss!
Have yet to try this but man, u gonna save me some money if my fleet doesnt explode :D
Any updates?
Worked! Just flew to mars 😀
Ooooo yaaa thank you now I'm moving to 6s
Thanks!
thank's ;)
Thank you for this video. I followed this. My question is, do I need to copy your PID and rates? My quad is xrotor f4 g3 60amp with xing 2450kv. Thanks.
Great Video, i came back from FalcoX and want to use it on Betaflight too. Does this work on 4.2.0 also this way?
thanks! just what i needed hahaha, but what about throttle limit?
Great video again DrainMan! Clear instructions, no nonsense.
Why would anyone get low KV motors if this one drone can do both 4S and 6S? Is there any disadvantage?
Moos ! That's a phenomenal question!
Well, actually it is not totally true because when you do this you have a motor that is not working at 100%. Unfortunately when you divide the output by the "magic number" you're not actually dividing the battery voltage that goes to the motor but you're only making that voltage be active an x% it would normally be. What does that mean? It means that the current peak that passes through the wires is the same as if it wasn't limited, even though the average is lower. So in the end you have less efficiency because you have more high-current losses and because of the higher peak you stress more the battery (even though flight-time is the same because the average current is the same).
So it is a lot closer to using a 4s setup with a 4s battery than it is to using a 6s common setup. But considering it is a lot more practical and you can make it a lot more powerful than any of the above because you can always increase the "magic number", this is a very nice option to go if you don't have many builds and batteries. Approved!
KV okay but how about torque ? will it perform exactly same as 1750kv motors ?
Question, If i did all these settings, but now want to change my rates.. what would I need to do for it to still work on 6s? do i just change the 4s profile? or would I plug in a 4s battery change the rates, and then plug in a 6s and change the rates? Thanks for the help!
Love it. What a nice way to give yourself more options for different situations. I could be wrong but I believe Kiss is not able to do this. is that correct? I love Kiss, but your vids show me why people like Betaflight. I'm building another quad and going to give Betaflight another chance. Thank you for sharing your knowledge.
I absolutely love kiss myself. But if you want to have fun and tinker with stuff you got to have betaflight
would you get same performance as running a 6s pack with low kv motors such as 1600kv? or does this method just make it so you can run your quad on this back with any real extra benifit?
For my opinion the prrformance are the same of 4s . I try on my Nazgul 4s
what about the throttle limit type on 6s?should it stay OFF or change it to SCALE?
I followed this exactly. Seems to work ok. 4 batteries in my motor major smoked caught fire. Not sure wtf happened but this caused me a crash and lots of damage .
Nice video dude! I suggest one thing, try to look to the camera inbred to the pc monitor!
Hi, what if you just lower the throttle curve on the radio? Take max throttle from 100% to 72%....and adjust the rest of the curve to your needs??
Worked for me for over a year now why buy new motors 👍👊🔥
Do you know if this works on INAV?
What will happen if I plug a 5s in? Do I have to add more profiles?
I made this and wen after some time and changed my motor to 6S motors how can I delete the profile limit thatI made ?
So can this same command be used to fly a 6s quad with a 4s battery? Or would that be bad for the motors?
That is brilliant! How in the hell did you learn all this stuff? Thank you for this!!
Thanks! Glad to help, it's not me who did it, it's betaflight! Lol
DrainMan FPV - Yeah, but damn, you are sharp on all this stuff! I could ask you a million questions on things that I don’t understand, and can’t find answers to, but, I’ll just keep wathching!
@@3eggerfpv397 haha that's awesome! Thanks Steve!
So do I press save or not?
I get why some would want to do this, but I don't think it is worth the effort. If you want to run anywhere from 2-6s batteries on a quad, you simply need to get motors rated for 6s and put them on your quad. Then it will automatically function with varying levels of aggressiveness depending on the voltage of battery you installed. Most flight controllers and esc's can handle 6s these days(check yours to make sure). So its a no brainer to just get lower kv motors that can handle 6s. The exception to this is if you are fully committed to using 4s batteries. Then you will benefit from more power and flight time with 2200-2800 kv motors
Is this possible on Betaflight 3.5.7?
His is that still working or am i doing something wrong with the switching part
Im a little late on this...
If you wanted a specific Kv but didn't want to choke your motors too much, heres a formula I came up with to find the 4s motor that fits the requirements. Not perfect but it gets you in the ball park.
a=desired Kv performance
f=Your motor output choke limit %
b=necessary Kv motor to satisfy your request
b=a(2-(f/100))
good job my friend bt now do this same with INAV :)
one particular 6s battery(at 22.01V) won't change the profile while the rest they will (22.5V) (all brand new). Betaflight at the top will recognise it as 6s however. Anyone know a solution or why it's happening?
So I have some 1404 5000kv motors and I'd like to run them at around 3600kv. What would be my magic number? Thanks!
I have 1700kv motors on the quad, I'm getting new 2600kv motors in the mail I won. My motors are old so I'm going to swap them but I only have 6s batteries. What's the reverse way to do what it says to do in the tutorial. I have to copy or create a 4s tune then save it and repeat his process? Or is there an easier way... Can I just put the motors on since it's already tuned for 6s? Mebe?
Does anyone know how this relates to efficiency? If there isn’t much of a loss, wouldn’t it make sense to do all builds like this to have the extra versatility?
after doing this, can the different profiles have different PIDs and filters? of you tune PIDs after do need to setup again?
Yes they hold the difference profiles. Double check that it does for you.
Nice vídeo!! How can I reverse the changes in the future?
Save everything before you make these changes, and then if you ever want to go back dump in the CLI and put it back. If you have already done it then you can only walk back through the steps or flash the FC.
Lol u legend I want it llolkl
Question: Can I do the reverse and if yes, do I have to configure some stuff as well?
I've got a 6s build and a 4s Li-ion pack that I'm thinking about using on my 6s for long range, would this be possible? I've got 1750Kv motors on my 6s. Thanks.
Unlikely. Because the maximum motor output percentage is 100%. In the video he showed, it is considered as limiting the motor output to 72%. What you are asking is like how to overclock your 1750kv motors to spin even faster, which will probably damage your motors. Stay safe. Cheers!
You are fucking amazing bro!!!!
Thanks alot this is realy mindblowing...
is it possible to set up a 6s quad to 4s?
i know it works but i realy miss a lack of power...
This is actually a good question! If you strap a 4s battery to a 6s rig, you will not need to change anything as far as betaflight etc. You will just experience a major "lack of power" if this is what your going for then you'll be happy!
@@DrainManFPV Thanks! well... sounds like a 6s quad with 2500 kv motors are the best desicion for a allround powerhouse