4S 1500 vs 6S 1050 mAh | FINALLY THE TEST YOU DEMANDED

[@dugggins]

5:25 "It's a 10 minute flight and I don't want you to get bored and leave, so, here's a graph instead." Loved it.

[@Asu01]

The 6s will always be better, the only reason is because if I say so, some my friends would switch to 6s setup and now I can get their 4s for real cheap.

[@MCsCreations]

That's not a bad idea... 🤔

[@pascalgermanfpv238]

Genius and truh

[@miken.3981]

So you saying you want to buy my 4s packs? I can assure you they don't have very many flights on them.

[@princesfpvdrones]

That's what I am doing

[@Hwyw]

Yea 4s bats for sale not many flight no crashed not discharged and only charged at 1c and stored at storage voltage Jk I'm joking all of these things are the opposite of what's happened to my batterys

[@scatfpv]

I'm from Philippines. There are two reason why I subscribed in this channel. Learn & laugh. It helps me deal with depression & anxiety. Thanks JB!

[@frasersteen]

Can't believe you made this test under a waning moon, that is clearly going to favour 6s.

[@Logan-kh8bi]

Fraser Steen 😂😂 these comments are too funny

[@princesfpvdrones]

lol

[@pottyputter05]

Gold

[@davidmgillmer]

You need a comparative Accelerometer chart to go along side the cell voltage chart. it's possible through this semi scientific test the "Punchyness" of the 6S is actually exerting more momentary force on the quad. Love your videos Joshua!

[@jaymattson5449]

Hi Josh, totally dig your welcome sign on your house!

[@bspringer]

The BattGo charger shows you the biggest individual cell voltage difference in the top left corner so you don't have to estimate/calculate it Just as a tip for next time

[@albert91tgn]

Hi Joshua, thanks for picking my question in the livestream and now doing a 30 min video to back it up, things like this proof you're the honest science based pilot we all need. As per the test itself, I do have some conclusions 😊 Wh are still the real number for flight time, and yes I do think quads have gotten so good as to be able to handle heavier batteries and nobody realised until 6S came around. I and some friends fly mostly 1600/1800 and notice an improvement! As per the actual power performance of the pack, there is an actual advantage to 6S, which is that less amps are required to deliver the same watts, stressing the battery, wires, escs and motors less for the same power. This is where I think the gains people see are, specially due to less sag because of less amps. You can even see that in your chart, the 6S were holding higher volts at the beginning while I can only asume delivering more watts given that the final cell voltage was lower and having an extra 5% capacity. I think the blackbox logs would show this. All this being said, for a normal freestyle pilot flying v1s 5x4.3x3 props on a 2306 motor I still think 6S is more hype than anything else. If you are pushing the performance limits of your quad however, and upgrading to a 1800mah 4S isn't enough, go for it!

[@the_steko]

Joshua, just want to ask, i have a iFlight Chimera7, beautiful quad, with 1300kV motors, so I should use 6S coz of the RPM, right? And i want to do long range so i think ima go on Li Ion

[@mitchiep1]

I know you said most people would click off, but I enjoy watching you fly just for the fun of it! And about feeling envious of Vanny's flying......I'd be a very happy man if I could fly as good as you!

[@GankFPV]

I object to the negative connotation at 20:38 where you refer to my FPV name and Company name "because he'll Gank it" LOL J/K.. another good video!

[@jasoncross6151]

Great timing, was proper on the fence with this and decided to stay 4s and invest more into my gear and spares.

[@toypilot9811]

Using the blackbox logs do a graph showing the delta of the throttle percentages between 4S/6S and see if it follows the same trendline as the difference in the voltages graph @8:05

[@tehllama42]

Yeah, I'd want to pull an extract of that plus the Amps (or even the raw CVR off that) to show empirically the difference in sag response.

[@JoshWeaverRC]

@@tehllama42 What about acceleration and velocity

[@tehllama42]

@@JoshWeaverRC I think that would be nice, but practically the four time-stamped data streams I'd care most about are V, I, sumIdot(mAh drawn), throttle position (or preferably four ESC throttle values) - with so much of the setups matching (props, motors, frame, etc.) you can somewhat infer that acceleration is going to be pretty similar. More so, I want to quantify what the sag delta is over time as you ask for throttle, and show that the voltage drop for the same +10% throttle command starts to diverge between the 4S 2500KV setup and the 6S 1750KV

[@ruftime]

Josh, your freestyle rocks!.....if you need a reminder of just how far you’ve come.....just look at one of your early tuning vids;-) Love you man!

[@Micko1987]

I love his videos, great pilot and has a world of knowledge about his hobby he has been very helpful.

[@rcpattaya230]

1. You're a great pilot 2. I love the music 3. Your approach is definitely correct, the outcome nothing more or less of what I expected. 4. Nobody can beat the law of physics. Thanks.

[@JoshuaBardwell]

Thanks.

[@thesaltyj6600]

Very good work! I was thinking, to make it more rigorous and gain perfect comparison you (or somebody) just programs a fixed set of commands for throttle, pitch etc. and then just fix the drone on a table? Then each flight would be perfectly the same.

[@WindjumbieFPV]

So I’m making the switch over to 6s and watching this old video, your style has changed so much over the years bro. 😯

[@DavidToyotaHead13]

Skipped the 1st part of the video to watch you fly. Because your just that good. Friggin smooth as butter!

[@WilkieaSt]

Agreed how good was it!

[@madsinner1737]

I enjoy being apart of that 20%. “2 scoops? Make it 3. I’m not drivin.” I’m hammered.

[@altizzy]

Watched the whole thing and wasn't bored. Excellent flying, Mr. Bardwell. If only the world could be as humble as you.

[@Christheawsome3]

I noticed the 4s quad had more grass on it, therefore increasing drag and rendering this test unusable to quench our thirst for accurate results.... Please try again Jk

[@echaitea]

How is these results invalid? The grass literally adds no drag to the quad. I don't know why someone would think that grass wound add drag to a quad.

[@echaitea]

Oh wait... You were just kidding... Oops

[@wasemgara9562]

@@echaitea r/wooosh

[@vazza69]

Haha 🤣

[@MCsCreations]

Really funny. 😝

[@ziggyzbeak]

I just got some 4s 1800s and so far Ilike them they are a quarter of an inch longer than my R line tattoo 1550s 4grms. heavy. Thank you J.B.

[@ErgoFPV]

Thank you for the test Joshua! The graphs were not so convincing for 6S (as I expected, honestly), but the footage was a different story. It looks like 6S setup is delivering the power more readily, while 4S is kind of holding back a little. Might be a bias on my side, but that is well aligned with what many people have said about the perceived difference. What would be interesting though is to find out where this improvement comes from. Looking at Miniquadtestbench data, low KV motors seem to produce 3 to 5% more power than their high KV equivalents at the same throttle position, especially in the lower range. That might be the sign that there is something interesting going on in the motors under higher voltage. Adding a few percents of extra power savings due to lower resistive losses might make it for the difference. Personally, I am convinced to try 6S after watching the flight footage like 4 times. Thanks again for performing the test. I liked the song :)

[@HarukanoF20C]

Haha your song rant had my cracking up! Haha I’m getting older in my mid 30s now electrical engineer so this is my new geeking hobby and when I fly with the young kids and join their convos man do I feel old... all the social media platforms and everything I’m clueless!

[@jackalneck]

Watt hours are watt hours. The real benefit of 6S explained at 13:16.

[@tehllama42]

Yup, nailed it.

[@tehllama42]

I stand by my initial assessment, and this backs it up: 6S is a real, definite, and measurable improvement... but in the single digit percentage range, and mostly noticeable after 90 seconds or more in flight. I think you did a phenomenal job of illustrating just that - the last minute of the 6S flights had a bit higher cruising speed, and the pop was more evident (i.e. less sag), and that's what the extra cost is there to achieve. Really awesome stuff, thanks JB! I think this probably puts even more justification behind the setup I've been recommending to people for quite a while - build a 6" frame quad with 6S ready electronics on a tall stator motor that is in the mid-low KV range (2000-2350KV). Rocks on 4S packs as the primary, especially with more aggressive props (51499, 5x4.8x3, 5x4.6x3, V2 Cyclones, etc.). You can run cheap 5S packs with light throttle limiting and have extreme performance at really reasonable prices, and down-prop to compensate (T5040C, 5143F, 5.1x4.1x3, S3 Ethis, etc.) and get a totally unique feel.

[@StacemanFPV]

Honestly, your freestyle isn't bad.. Don't knock yourself too much

[@JoshuaBardwell]

Yeah, but Vanover is still way better.

[@StacemanFPV]

@@JoshuaBardwell yeah... True :)

[@billyshears9714]

@@JoshuaBardwell he'll always be better, just chill out and have fun

[@xymaryai8283]

@@JoshuaBardwell have some Charpu spirit man! just fly for you, forget tricks and just feel it ^-^

[@NainKaigo]

It is my understanding the best reason for 6s is to lower amp draw which also keeps the packs and motors cooler. I look at it like this: improved longevity of the packs and motors as far as life cycle goes, not flight time. I have puffed 4s packs drawing too many amps and overheating the battery. I plan to move to 6s to see how much better they do for reliability.

[@AxionLincs]

Really impressive coverage of technical aspects. Great job

[@Maceyee1]

I watched a friend do this and noticed on 6s they used more flowing momentum movements using the weight. On 4s they were filling out with just more twists and turns inputs. Something about 6s forces us to sling the quad up and not 'along'👍🏾

[@TavoFourSeven]

Facts.

[@Edgewalker728]

Finally! Someone to actually do a very good test of 4s vs 6s in a fair manor! Joshua Bardwell: Killer of Hype 👍 Keep up the good work!

[@gautamkrishna7421]

SoleBurnerFPV killer? Lol I saw this and I’m like imma get 5s now (quad can’t run 6s). If it has similar flight times, better sag and way more power, I want. But anyway he killed the myth that 6s has more flight time

[@pascalgermanfpv238]

With equal kv on both setups.. you will get more flighttime, but not more power. And dont use 5s on 2300kv motors, you will like to draw more than 180amps xD a punchout will shoot u to the moon but your gear will die sooner or later :D i toasted some matek ctrs while my osd ampmeter limited out at 184, i pulled more amps than the fc could handle :( decrease the kv for 5s

[@Edgewalker728]

@@pascalgermanfpv238 deppends on the props.

[@gautamkrishna7421]

I’ve got emax ls2207 2300kv so I’ll keep an eye on the amp draw when I get a 5s lipo. Thanks.

[@pascalgermanfpv238]

@@Edgewalker728 sure. If u use some shallow props it should be ok. My experiance was on 6042 gemfans. And they are quity shallow

[@archer4922]

I built my first 6s rig about 3-4 months ago. A ultra lite 2205 1722 kv build and comparing it to my 4s race build that used the same frame but the 2522kv version of the 2205’s. The 6s definitely feels different. They both way just about the same just a few grams difference but the 6s really feels a lot better than the 4s rig. I’m also more consistent around a race track with the 6s as well. I’ve got 8 pulse 1050 75c 6s packs that a buddy of mine sold me and while their all used 6 of them are perfect. 2 won’t hold a charge much anymore after the torture I put them thru one day a couple months ago lol.

[@tehllama42]

You're getting your money's worth out of those packs. I feel generally the same way about my 4S and 6S rigs, but as I go to taller stators the difference gets smaller.

[@flighttherapybullisticfpv133]

I hate to say it but the RDQ batteries have their upsides and their downsides. Upsides are; long flight time when doing dynamic freestyle, good price, possibility of high amp draws for long periods. Downsides are; cell's become unbalanced very quickly below 3.4V ( and in general actually), very slow to bounce back from a high amp punch out, Voltage drops off VERY quickly after 3.5V/cell sometimes so fast that emergency landings must be made to save the battery

[@jc8508]

Fantastic video! Thank you. Im sticking to 4s for now!!

[@eliasderke382]

for what its worth, every 6s pack that i've used always is a bit more imbalanced at the end of flights when compared to 4s. this observation is limited to black label and tattu r-line 6s

[@Camaro4726]

I have a 4s kissv2 reverb setup and then moved to a 6s kissv2 setup on a hyperlite glide and I used those exact 1050mah packs from rdq and they were amazing! Longer flight times but as far as difference between 4s and 6s I thought it seemed to be more in the feeling of the quad than seeing a difference. But that's just personal experience

[@Logan-kh8bi]

JimBreed im building kiss v2 on the reverb for my next build. Is the reverb floaty on 6s? My marmotte is a little too floaty for my liking.

[@Camaro4726]

@@Logan-kh8bi it feels pretty much just like 4s only with more authority so you feel the power come on way lower on the throttle. I'm guessing that's what you mean by floaty so yeah that is pretty much the reason I'm still sticking to 4s. I know you can make throttle curves or limiters but yeah I'm guessing its gonna feel similar to how your guessing. Lol

[@djilly75]

you should feel very proud. you gave vanover a very special gift.also everytime he hears that song or artist he will think of you and that moment.

[@BigAlFPV17]

Very helpful video Joshua!! Always watch your vids from beginning to end no matter how long they are

[@slaggedfpv599]

I'm just glad I made it to the video.. Have a great Memorial Day weekend JB..

[@JoshuaBardwell]

Glad you're here.

[@MojoPapiFPV]

Solid stuff! May be interesting to use throttle percentage on radio and land exactly after that timer is depleted, because that will be based on the actual flight rather than just going by pure voltage reading or time.

[@quadwizard]

Hey all, JB observations here match my own experiences... I have a quad setup for auto profile switching (I love this feature) and fly 4S and 6S on it with 2600kv motors limited to 64% on 6S, it flys almost exactly the same either way but I have noticed it seems to deliver smoother and the ability for longer punches on 6S with very similar flight times 4S=1500mAh 6S=1100mAh... Another great video here...

[@nathanielharter1643]

If I remember what you had said correctly, the 6s had slightly more mV at the beginning due to charge, about 30 right and a touch more wheight. Yet the 6s also was at the end of its life sooner. I forgot where the WHrs fell.but I think this was a pretty accurate test. Thanks JB

[@xtkfpv5306]

I wonder how the 6s affects the life of the other components such as VTX, and FC since the voltage regulators need to dissipate more voltage, do they run hotter and therefore have a shorter life expectency.

[@JoshuaBardwell]

ESC's are more stressed under 6S and seem more likely to pop, all else being equal. A 6S-capable ESC running a 4S battery is more resistant to voltage spikes.

[@HelloDonkey9]

Just ordered all my parts for a 6s quad. I keep bottoming out my 4s with some of the punches I’ve done. Maybe poorly tuned, but kind of excited to rip in a new quad with larger power source.

[@Logan-kh8bi]

I was literally just contemplating going to 6s then clicked on KZbin to see this..thanks Joshua 😂

[@Logan-kh8bi]

Alec Hurlbert his build is super efficient and he used low pitch props, that’s my speculation

[@FPVisioning]

@@Logan-kh8bi The watt hours were way more in the 6s

[@MCsCreations]

Finally! Fantastic job, Joshua!!! 😃 About you feeling more "pump" with 6s, remember: the motors would be 2650kv on 4s. Although you limited the top end, they are still more responsive exactly because they are higher kv. 😉 Anyway, looking forward for the 1800mAh tests! 😃 I heard there are pretty good 1800mAh and even 2000mAh 4s batteries, but from Tattu. From RDQ I don't know, but I hope they are as good. 😊

[@JoshuaBardwell]

The motor output scaling does not limit the top end. It scales down the entire motor output curve proportionally.

[@MCsCreations]

@@JoshuaBardwell Yeah, but still... It doesn't change the normal behavior of the motors. 😊

[@JoshuaBardwell]

I'm not sure I understand. kv is rpm / volt. If you send 10% less voltage through 10% higher kv motor, what changes? No but seriously this is a big question that needs to be answered ;-)

[@MCsCreations]

@@JoshuaBardwell Agreed! 😊 Maybe it's just my impression, but looks like higher kv motors tend to make speed transitions faster. You know? So, for example, if you are at 30% throttle and go full throttle a higher kv motor gets there faster. You know what I mean? I could be wrong... But I'm sure Ryan Harrell would know the answer. 😊

[@andrewpienaar4522]

Hi Joshua. I believe your Cell Voltage readings confirms what I commented on a previous video you made on this topic. 6S wiil punish the weak Cells (with lower Voltage) more than 4S and shorten the life span of the Pack. After 50 flights, the 6S wiil have lost much more performance (if not all), compared to a 4S because it is harder to notiice that you are straining the weak Cells. When a Cell is 0.2V or 0.3V down to the others in the pack, it is much less noticeable on 6S. That Cell then gets trashed, as you happily keep on flying. This becomes a vicious circle over each cycle. Balanced charging helps to mitigate this but the end will still come sooner for that pack.

[@MCsCreations]

That makes a lot of sense. Well, we need better battery technology so those things won't happen. 😕

[@FrequentFlyerRC]

Cool video👍🏽 what about 5S? I like 5S a little more👌🏽

[@YancySmithTurboRexPerformance]

What do you do to keep the wood boring bees aka Carpenter bees from trying to turn your log cabin into saw dust?

[@Archoney]

Thanks for the video :) When comparing 4S to 6S flights, it seemed to me that on 4S your tricks were noticable smoother. On 6S sometimes they were too fast and hard to follow.

[@rbmwiv]

I also run a lipo low battery alarm on my balance port that if one cell is getting low I can hear the alarm on my earphone. $.99 I have a handful of them and you can program whatever voltage you want it to alarm at. The ones I have do 1-8s.

[@airplanenut6242]

Residuals plot for the win! Also I was struck by your note that the 6s motors are a higher equivalent kv. Maybe one reason people like 6s is that it let's them run high effective kv motors without the super high amps of 4s...

[@d.o.3293]

The intermission story about Vanover was hilarious.

[@d3c0deFPV]

Thank you for the data, Joshua.

[@cougman68]

Where's the 5 S test result comparison : ) Thanks for all you do !

[@Streifenprinz]

Until yesterday, I had a drone. But then she decided, in spite of programmed failsafe, to give full throttle when the radio lost connection and disappeared over the tops of the trees in a forest. Let's take the moment to honor all the quads that are wild and free again. I will miss you. F (During the crash, the battery seems to have loosened, so it wasn't detectable)

[@llickmogan]

Wizard??

[@JoshuaBardwell]

You didn't set up failsafe correctly. Always test failsafe with props off before flying.

[@Streifenprinz]

@@JoshuaBardwell Well...I tested it when setting it up. But i updated the firmware a view days ago...and loaded the json file back into the drone. After doing this i didn't test the failsafe again and that was not the smartest thing to do :D -> i will now better while working with version two :) P.S.: thx for the great videos mate :D

[@Streifenprinz]

@@Wheelieking619 it's in Bavaria. Hunt this guy down, if you can 😂

[@stone_fpv2599]

I had the same problem, I setup everything in betaflight, still 100% throttle after failsafe. Had to setup failsafe on my radio. Now it’s working properly.

[@daemn42]

So let's start with the assertion that all other things being made equal 6S "performs" better even when individual cell voltage is lower (such as at the end of the flight or during high load). The most likely hypothesis to explain that, is that pack energy is converted to thrust more efficiently (less energy lost to heat), because it's high current that creates heat. For a fixed wattage, high voltage with lower current literally works better than lower voltage at higher current. This is why industrial motors run at 240V instead of 120, and electric cars at 375V and so forth. One way to test this would be with a single motor/prop thrust testing stand. Equalize everything else the way you have, and then measure the actual thrust generated from a fixed wattage input, across the whole cell voltage range. The trick here is to ignore the throttle %, and focus on input wattage. If you set it at 500W, then that's about 34A nominal for a 4S pack and 22.5A nominal for 6S. Run the whole pack down and see if the average thrust is higher. Then repeat with timed bursts up to say 1000W at beginning, middle and end of pack, and again measure if thrust is higher on 6S than 4S. If there is a measured loss of thrust on 4S it should be offset by higher pack, wire, ESC and motor temperatures.

[@kennethcartman473]

Somebody had there weetabix!

[@tehllama42]

So, to save you some time, I've done huge amounts of this work already. You can check it yourself with the Data Explorer on MQTB. The 4S setup is actually more electrically efficient, by about 5% on average with the closest matching setups I can find from ~8 data sets. The difference has to do with the Tafel response of the batteries themselves as they transition out of the Ohmic resistance region into difusion limited regimes, and since the sustained discharge rating of batteries are generally quite similar the higher voltage lower capacity pack hits that transition point bout 12% later, so you can push them harder, which is much more noticeable at 50-80% of battery discharge cycle, and they maintain higher effective voltage (thus more wattage on tap), so you experience less perceived sag.

[@daemn42]

@@tehllama42 Hmm, interesting. Where is the 6S data visible on MQTB? I don't see it (can't find it). The rest of what you said is mostly beyond my comprehension, but I do have one question. Are you implying that the improved response of the 6S comes from actually having smaller capacity individual cells than the 4S? I ask because I think most would agree the only thing better in feel than a low capacity 6S pack is one with a bit higher capacity cells (JB's 1250's versus 1050's for instance). If it really is a small cell advantage then one should really try a 6S 1500 and see if it feels like it's sagging at the end of the flight same as 4S. Perhaps I misunderstood.

[@tehllama42]

@@daemn42 Look for motors in the 1600-1950KV range, and find ones where the same motor in ~2500KV is tested). The improved response is DESPITE the lower capacity. Even though there's less battery surface area being used to push power, it doesn't get penalized quite as badly in voltage because of the lower current - basically less actual sag happens because the battery isn't getting hammered as hard.

[@daemn42]

@@tehllama42 Ok, that makes more sense.

[@aerialimagery3216]

Here’s a thought, since 6S is higher voltage, it feels more responsive. If 6S is more responsive, would it work better with the pid controller allowing the quad to catch up to the stick commands faster because it bogs down less? This producing a better flying tune? Also, I would think that with the higher voltage, 6S would actually get the props spinning closer to the KV then 4s thus giving you more speed and power.

[@johngraboski]

I just ordered the parts to my very first 6s racer like 3 days ago...

[@a.i.thinker4059]

6S is the best for me with freestyle. That extra power and yaw magicy goodness makes tricks easier to do than 4S for sure.

[@ReaperOperator]

I know it would be quite the undertaking but to make a or rather to have a better Stats knew would have to increase your sample size by at least 8 batteries on 4 and 6 and fly each one 3 times so that you're able to average out Just be clear I don't expect anyone to do that.

[@FlyerTuck]

Thanks for the science JB. And thanks for the flight footage.

[@mikegrimsley9017]

Jeez Josh, you were really rippin!

[@hcarltonadams]

Maybe a different control would be to have Vanover fly the same race circuit with the two quads (blind test if possible). He would be flying basically the same path . Then look at lap times, duration and voltages at various gates throughout the course. 6s should yield better laps but maybe you can’t do as many total laps?

[@jdnic1]

You have to calculate kv and rpm so for a 3 inch quad 1406 motor for example between a 3s and 4s A 3300kv motor on 4s to run 48840rpm A 4400kv motor on 3s will run at 48840rpm I still think a 3s quad can run equally fast as a 4s as long as you have the right kv motor. BUT the amp pull is what I'm questioning and which one is more efficient.

[@Gunfighterhaft]

I switched to 6 s Same endvoltage the quad has the same waight, on 4s (2300kv) i got 3 min flat on my 1750 6s i get on the Same props 4:30-4:45 mins

[@sixteenornumber]

I would love to see you do this again with a blind or even double blind test.

[@jeffreestylefpv5907]

damn jb ive never seen you rip shit up like that !! your reflexes are nutz !!!! great test too.

[@Fpvpilot928]

I know that high def footage is better for KZbin and all but I kinda wish there was more dvr so I could see how the voltage sag towards the end of the battery affects the video noise.

[@ched999uk]

Interesting. It looked like the 4S pack had been used more - looking at the scratches on the outer clear heatshrink. Did the 4S and 6S have a similar number of cycles on them?

[@rc-fannl7364]

The faster throttle response on 6S, could that not be due to lower kv motors generally having more torque, so they can more easily spool up the props?

[@divingfalconfpv4602]

I have had 2 packs before have 0.6 volts difference between 2 cells.. but been marked and monitoring and haven't done again.. I did drain it low that time.. miscalculating getting home lol

[@MikeJackman]

These are your best videos, keep it up!! Also, Disney Radio FTW.

[@jesselopezdrones4396]

I flew 1300 mah 6s and 4s that’s when I noticed differences in fly times. Great video Bardwell👍👍👊👊🙏

[@AndreySemjonov]

I just made my 1st 6S build and I agree with you @Joshua Bardwell. I didn't get longer time, but feel is different and it is more responsive and I can't feel sag. Only one downside that it is easy to discharge battery till 0% :D because you don't feel so much loosing of power. I would say in overall 6S better that 4S by 10-15% after my tests. I wouldn't suggest to sell all 4S parts if someone have, but if build new build than 6S may be better choice :) By the way I have Tatty 1050mAh Rline 95c and Tattu 1300mAh 75c and I like 1300mAh more for freestyle. Don't know why.

[@JoshuaBardwell]

I agree it's way easier to run a 6S down to 3.0 and kill it. You just don't feel the sag at all.

[@mrzon9344]

How about comparing the sum of the throttle position..like a throttle timer to see if you flew wwith the same agression?

[@Skaaptjop]

enjoying your content so much! were the 6s motors cooler after the flights, higher volts at the same watts gives lower amps = cooler motors? just a thought

[@cahePL]

Thanks Joshua, an unexpected video :). For the 1800 I recommend Tattoo 3.0 :). Light and very good performance (finally) not seen before in the bigger batteries.

[@grampafpv8013]

I just bought he 2000 Tattoo 3.0 and wow what a battery

[@DrGonzo3l3v3n5]

I'm interested in what would happen to the flight time if you dropped the kV lower, until it feels the same on the sticks..... Really low kV + 6s

[@VaitkusMantas]

Meanwhile I am trying to set up my old fpv drone again and am trying to find out which props would be the best ones for 2345kV motors and a 3s battery pack lol. Really have to save up some cash to upgrade to the newer tech

[@nashnazer]

The 6s has more discrepancy in the cells voltage coz there are more cells in series and the current has more cells to travel to reach the output xt60 plug. in other words the resistance increases amongst the cells. the energy of the cells are lost in travelling between the cells to reach the output.

[@stephenchick2454]

Is there any way to ‘play’ a black box or transmitter recording back through a quad? So have two strapped down and they obey identical signals.

[@JoshuaBardwell]

Nobody has invented that yet as far as I know.

[@jdrissel]

Did you check the balance before flight?

[@Jamesn-js1zp]

So why pay more building and flying 6S just to be like the Jones's. I'm more than happy with my cheaper equally performing 4S quads. Cheers Josh

[@tehllama42]

The real winning setup to me is building 6" quads on mid-low KV motors, and scoring cheap 5S 1300mAh packs.

[@quadalexfpv5269]

Butter Smooth Freestyle! Cheers from Germany ! Would Love to See you just fly more !

[@Hazzmat321]

Joshua, just watched your 4s vs 6s, for long range would you go big 4s or equal WH 6s? For me its using a 7in quad. My research is showing i can get a lighter 6s with equal WH to a large 4s. Wondering if there are other benefits going with one or the other.

[@daggergtfpv]

So what temperature is the battery packs after the session. Is the 6s just barely warm because the 4s will be warm. If the 6s runs cooler does this equal a longer service life?

[@marinehm]

Yes, I stuck around to the VERY END! Great analytics.

[@marinehm]

Pool is looking good! 😝

[@JoshuaBardwell]

@@marinehm Thanks.

[@TweakRacer]

Why not use 1000mAh 6S for exact same Wh? Off the top of my head, RMRC Orange, CNHL Ministar, etc. have then in that size. They also have 4S 1500mAh. And, there are 1650kv motors out there too. Maybe just use the same 6S capable quad, get the right lipos/motors, and swap them out on the same quad.

[@JoshuaBardwell]

Always room to do an experiment better next time. In the mean time, let's see what we can get from the current test.

[@TweakRacer]

Joshua Bardwell For sure. Thanks for all your hard work for us.

[@tehllama42]

​@@JoshuaBardwell Yup, nailed it. The real difference is that even despite that mismatch the data points are all on top of each other, but the subjective feel and the way the flight footage looks (especially after the 2:00 mark) is actually fairly different, so I think this test achieved everything we were aiming for.

[@toddelphick9965]

hey jb looks to me like u were "feeling"the 6s just a little more by your flying, nice vid thanks.

[@martinnicolas2439]

Thank you Josh, very interesting test !

[@davegoddard]

Great video. It dawns on me that the tune has a lot to do with flight time. Did both rigs have the same tune? If so have you found the tune to be close or similar going from 4 to 5 or 6s.

[@ReeferNoob23]

Hey JB im wondering if the more cells you add to a pack the more balancing issues you will have

[@TONYSTARK-jh2wu]

What about different battery brands like Infinity pyrodrone gnb?

[@HDgodfrey]

Love your style man. Gonna be haters but before they start hating I wanna see the video where they use the scientific-ish method to test their hypothesis. Keep killing it JB!

[@nide85]

4s or 6s for long range cinematic footage? 4s or 6s for freestyle cinematic footage? I am looking forward to buy my 5" quad and use with GoPro 8 and Insta360 one x to shoot smooth videos would the 6s be better for like 1.5 Km round trip or will it be the same as 4s? with the weight of Gopro and the extra weight of 6s comparing to 4s quad, would the 4s beat the 6s on long range 1.5Km trip? I want to buy my first quad and I am confused... Please Help!

[@FPVDiverBomber]

Good Morning Sir, I bought a 4 s Nazgul cause I have many 4s bats,,,, but someone told me if I want to try a 6s on my 2400kv made for 4s motor that I could if I lower the motor output to like 67% is that true ? will a 6s run on rtf 4s set up but motors lowered? to 67% will it feel like I bought a 6s set up that is 1700 or 1800kv? will it damage anything????

[@sklepa]

Joshua You Mo Fo! Just mute prop sound and You're Johnny Bardwell! Damn that was some good freestyles!

[@sklepa]

That's not You!

[@SkyCandyVisuals]

thanks for sharing! great test JB

[@dave123443210]

Perhaps the shape of the 1800 4s is what makes a difference - they tend to have longer cells with a similar total pack width as a 1300 4s where the 1200 6s are similar cell size to what we use on 4s? Could it be just be that simple

[@JoshuaBardwell]

I agree about this. When I did bench testing, the 1800 4S performed worst of all, worse even than the 1550 4S.

[@cedricgrandseigne]

A year after your first 6s video, you finally come up with a fair comparison, which leads to the same conclusion as mine in terms of autonomy... Now, what you're feeling, is the increased torque of a smaller kv motor.

[@JoshuaBardwell]

Maybe you missed the video where I bench tested 4s 1500 and 1800 vs 6s 1050 and 1250. But I'm glad you like this video too.