Says the guy who previously said he doesn't see much point in going to 6S LOL

As per the title, I'm looking to possibly go to 6S for my new build. Still trying to decide. The original plan was to just use 4S, mainly because I already have a load of those and buying 6S LiPos means I will probably need to remortgage my house after the expense of the quad parts themselves in order to buy some. LOL. Plus 6S LiPos usually look hideous on top of a 5" freestyle quad because they are so tall (or wide depending on how you mount them), but looking at dimensions I see that some of the premium 6S 1300mAh LiPos aren't actually that much bigger or heavier than the 4S 1550mAh Tattu LiPos that I'm currently using:-

• Tattu 4S 1550mAh 75C --> 73mm x 36mm x 36mm; 185g
  
• Tattu R-Line 6S 1050mAh 120C --> 76mm x 39mm x 43mm; 202g
  
• Tattu R-Line 6S 1300mAh 120C --> 78mm x 39mm x 39mm; 212g
  

So now to the question, because I'm a 6S noob. I see on Oscar's blog article HERE that the equivalent to a 4S 1500mAh LiPo in 6S guise is 1000mAh. Based on the above bullet pointed list, other than the higher cost, for 10g of extra weight is there any good reason why I wouldn't just go for 1300mAh 6S LiPos instead of 1050mAh ones?

https://www.unmannedtechshop.co.uk/product-category/lipo-batteries/fpv-lipo-batteries/6s-22-2v-lipo

Please someone talk me out of considering 6S 

I've just got 1050's for my 5 inchers. I get about 4 minutes of *very* hard flying but honestly 3 minutes in I'm already breathing hard, sweaty palmed, and thinking I need a break lol. As for the height, at least for me, they are just as tall as the GoPro Session up front so it actually kinda completes the profile lol.

[edit] Also, Tattu or bust lol.

[edit 2] The throttle authority on 6S is literally physics defying. Just a little loud lol.

No reason not to go with the 1300mah. Which is roughly a 1800mah 4S. The minimal increase in dimensions and weight is negligible.

As 6S is becoming normal now, people are starting to do 8S and 12S on mini quad.

You guys have completely FAILED the mission to try and talk me out of 6S 

The motors I want for my quad seem to be in short supply in 4S guise (2550KV) but I found a supplier with stock of 1950KV version of the same motors. While those would work with 4S (albeit a bit on the sluggish side), they are far more suited to 6S looking at the thrust and other performance data.

I will certainly have the ESCs and other hardware to support 6S so, it's just a question of whether or not my bank balance can sustain yet another beating because I've spent so much money in the last two months on FPV related stuff that it's not even funny. If I take the plunge to 6S I will need to find another $250 for LiPos, plus money for another ammo box to store them in.

Thanks for the help.

@Ronin - Just because you're the forum's resident Ken Block of the quad world, it doesn't mean the rest of us are 

(16-Jul-2020, 12:31 AM)SnowLeopardFPV Wrote: You guys have completely FAILED the mission to try and talk me out of 6S 

Also, 1950kv isn't "better suited" for 6S, it *IS* for 6S. Honestly, this just tells me that the very cosmos have aligned to move you to 6S. But yknow, that's just fact, I'm not saying either way whether you should make the move.

(16-Jul-2020, 12:31 AM)SnowLeopardFPV Wrote: @Ronin - Just because you're the forum's resident Ken Block of the quad world, it doesn't mean the rest of us are 

I had to google him to see if he was like a obnoxious nonstop talking guy that plays Xbox ... he is not. Thank you Snow but I am not. In fact, what's great about 6S for n00bs like me is the recovery. I can't tell you how many times I should have smashed nose first into the ground if not for the giddy up of 6S. Now take that the other away and imagine the momentum throwing these 500g freestyle quads around lol. They don't stop floating.

I was hesitant to move to 6S. But little to zero sag throughout your flight really is nice. You can always take apart your 4S and convert them to 6S. Saves yourself $250.

I think I'm probably going to make the move TBH and I'm 75% leaning that way at the moment. Some of the stuff for the build isn't going to arrive until late August anyway so I guess I can try and spread out the cost of buying 6S LiPos. I will just keep my current 4S LiPos for my existing 5" 4S quad because I intend to leave that as is. They're only 75C LiPos anyway so I will need ones with higher C rated cells for those 1950KV motors.

Snow its a no brainer. You cannot have enough power. More is always better

That 12s monster Voodoo put up was nuts. It gave me goose bumps

I'm seeing more videos where people are limiting their motor kv via software to make them more 6s friendly. I'm not sure I would do that myself but it's sure an option for your 4S builds.

I wonder about that as other than pulling too many amps and blowing stuff up what makes too many kv's for 6s. JB was given that crazy quad with 2700 motors that ran 6s and that looked sick. My 2345's are on 5s and it is fine and my old 4s machine I tried that on 5s and it was awesome. Motors didn't get hot at all.

I guess the next step is buying a good 6s battery and see what happens

(16-Jul-2020, 03:10 AM)UrbanJungle1966 Wrote: I wonder about that as other than pulling too many amps and blowing stuff up what makes too many kv's for 6s. JB was given that crazy quad with 2700 motors that ran 6s and that looked sick. My 2345's are on 5s and it is fine and my old 4s machine I tried that on 5s and it was awesome. Motors didn't get hot at all.

I guess the next step is buying a good 6s battery and see what happens

It really is all about the current the motors draw at full thrust which is obviously also dependent on the props you use. So you either need to find thrust data for your motors or get a thrust rig and do some testing yourself. Unfortunately the manufacturers only seem to publish data for the recommended voltage to be used with a particular motor. In my case the 1950KV motors show a maximum current draw of 53A using 5146 blades. Strangely though the current draw shows to be less with higher pitched 5150 props (52A). I'm assuming that 6S voltage was used to produce those figures although it doesn't actually say. As long as your ESCs support more than the maximum current draw from the motors then you should be OK.

I just bought a couple of 6S 1100 CNHL black series. Will be running them on xing 2207 1800kv and 51433 props.

Decided to go for 6s on my new build after running my old 4s for 2 years and they all needs to be replaced now..

(16-Jul-2020, 12:07 PM)Andreas-sa Wrote: I just bought a couple of 6S 1100 CNHL black series. Will be running them on xing 2207 1800kv and 51433 props.

Decided to go for 6s on my new build after running my old 4s for 2 years and they all needs to be replaced now..

Please let me know how the CHNL ones perform and what sort of flight time you get out of them. They're about half the cost of the Tattu R-Line 1300mAh LiPos and are a similar size, but a 20% lower C rating (assuming you believe the rating that is). So they may be suitable for a 6S noob like me.

My Tattu 4S 1550mAh LiPos are also around 2 years old as well and even after doing over 300 flights with them they don't seem to be showing any real degradation that I notice (yet), and the cells all still have a nice low internal resistances (~6-7mΩ). I can get 4-5 minutes of flight time out of them depending on how crazy I fly. That is why I was originally considering just sticking with 4S and continuing to use what I already have on the new build. But I obviously need to choose one or the other so I can pick compatible motors.

I would ideally like the same sort of flight time (4-5 minutes) out of 6S LiPos.

What motors are you using on your build?

(16-Jul-2020, 12:43 PM)SnowLeopardFPV Wrote: Please let me know how the CHNL ones perform and what sort of flight time you get out of them. They're about half the cost of the Tattu R-Line 1300mAh LiPos and are a similar size, but a 20% lower C rating (assuming you believe the rating that is). So they may be suitable for a 6S noob like me.

My Tattu 4S 1550mAh LiPos are also around 2 years old as well and even after doing over 300 flights with them they don't seem to be showing any real degradation that I notice (yet), and the cells all still have a nice low internal resistances (~6-7mΩ). I can get 4-5 minutes of flight time out of them depending on how crazy I fly. That is why I was originally considering just sticking with 4S and continuing to use what I already have on the new build. But I obviously need to choose one or the other so I can pick compatible motors.

I would ideally like the same sort of flight time (4-5 minutes) out of 6S LiPos.

What motors are you using on your build?

I will use Xing-E 2207 1800kv motors on my build. The black series are a bit heavy and I was uncertain if I should have bought the ministar 1000mah 187grams or the black series 1100mah at 211 grams. But rumor says that the black series are more like 1200-1300mah so that is why I decided to go with them.

I also have the tattu 4S 1550mah 75c and funfly 100c to compare with and I am sure that the new ones will have a lot of punch in them.

I paid 87 usd for 5 packs including shipping and that is really hard to beat..

I have the CNHL 1300 Black series 6s is big and heavy comparing to my 4s 1550. To cruise around i can do like 7-8mins.. My arm get tire also.