DJI FPV: Max Flight Time Battery Test - How Long & What Happens
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- Опубликовано: 29 авг 2024
- #DJIFPV #BatteryTest
The specs say the DJI FPV has a max flight time of 20 mins at 40 kmh. So I use Cruise Control to test how long the maximum flight time I can get from the DJI FPV when flying at 25 mph or 40 kmh and what happens when you fly right down to 0% battery. I show what happens with Low Battery Return To Home kicks in, along with Critical Battery Auto-land and Critical Battery Forced Landing, and which controls you can use to override is necessary.
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First Rule: Don't Push the Battery. Second Rule: Don't take your Battery to 0% or it will damage it! That aside, is this a reasonable test and result?
Nice test flight, I too was getting 6-7 mins going crazy in sport mode
I think so, good to know what it could actually do in case these things happen.
do not charge it and fly without a break for the batteries
keep the battery always dry and warm underneath your jacket before you fly
in summer with higher temperature you might find the 2 missing minutes I guess.
If you pick an electric car like an e-Golf and drive with 3°C ambient temp. than you will get 150 km range and about 20°C you will get 240 km of range.
Yes, different cell chemistry and each works a bit differently, but all the Lithium cells perform better in warm conditions.
Good luck for an early and long summer for great fpv flights
This is true however in practice no damage should be done to your battery. That 0% battery (%) isn't really 0%. The battery controller is programmed to 'always' have enough for the drone to land. The drone should never fall out the sky for obvious reasons especially at a high altitude. This is why it overrides your controls eventually. For homebuilt drones running your cells to 0% is the real 0% and will do damage.
@@sandyleask92 lipo batteries should never run that low, however this video was made for learning purposes.
Ian you’re the man. You live in a great place to fly. I’m surrounded by water and tall trees so I will have to go elsewhere to try out the FPV on a real flight. I haven’t had much luck with simulators.
That lasted for more time than I was expecting. Interesting test! Thanks as always!
Hi Ian, slightly off thread but wanted to thank you for all your vids and brilliant advice......... I passed my CAA all groups and cats under 25kg 1yr Ops and 5 yr flyers yesterday and a big part thanks to you. It is the new exam online, 40 questions. 30 or more is a pass, I got 38 so not bad for first time . All I need now are some DJI vouchers ! ... Cheers mate. 👍
Ian
Have you finally learned to fly in manual ? Most incredible journey for me it has been. I fly every single day as long as it’s not raining and extremely windy. It’s my therapy.
thank you .. so much searching for if you can fly without Google's on your face and just use your phone to view where you are going .. finally find it on a battery video
Also, Ian, it would be helpful to state the age and the charge cycles of the battery? As you know a brand new battery must be cycled in order to reach full energy potential/storage. The more information we have the better the understanding and hopefully outcomes.
Thanks so much . I was really disappointed about the short battery life . But I do enjoy the FPV .
I’m pleasantly surprised you got 17 min. Manufacturers are notorious for overstating maximum distance and capacities compared to the real world so within 3 min isn’t too bad I suppose.
He could have gotten the advertised flight times if he would leave it in N mode He chose to fly around in Sport mode which will use more of the battery's capacity. You can rest assured that's how DJI got 20 Min. of advertised flight times.
Great review Ian.
Taking one for the drone community there.
Poor battery time realistically in sports mode.
Loved your honesty on your chat with Shaun about this drone.
Agree with you that this is going to make a headline soon. Keep up the good work mate 👍
I sincerely hope it doesn't make a headline tho.... I reckon if you can afford this, then you'll look after it hopefully..
Hey Ian,
You’re doing it all wrong
You’re supposed to strap the goggles to your noggin so you don’t have to keep peeking into them placed on the table. Lol
I get about 5 and a half mins on full manual giving it all it's got 👌
just purchased the unit with two other batteries Useful info thanks
Pretty decent, considering how heavy the drone is :)
Great video as always. Fair assessment and unbiased. Disappointing flight time as wind doesn’t appear to be the issue. Thanks it gives us guys and gals out here a good idea of what we can and can’t do. I have just purchased another battery £££££😩 cheers Ian
Yep; you spend a grand, may as well spend another hundred to double the enjoyment....... :)
@@IaninLondon .... early wedding anniversary present for her in doors? Ok she doesn’t fly 🤣
OK first question is why S mode for the test!? Isn't it N mode or whatever the normal mode is!
Also I think that DJI means 40km/h in a straight line! Every turn you make uses more power than just if going straight cruising at 40km/h..
Very nice test though, for what you could do alone, it's sweet...
Keep well and be safe Ian!
😁🇧🇬🛸
Fair questions. 1, S Mode is the only mode for Cruise Control, and I didn't fancy watching my speed for 20 mins. And yes, of course every turn eats into battery as I mentioned after I landed. Maybe a hover test would be the perfect control test for their stats....
we love your content Ian, hope we can get some more drone work done this year
Thanks guys! Whatever happens, must be better than last year! :)
You have to run them through a few charge cycles before they get 100% efficiency. Everyone has different opinions but I have some old spark batteries. That still seem to function pretty much like they did when new. The first few times I pushed the batteries. 100% to 0%. After landing I would slowly finish running it down to 0. After that usually don't ever go below ten %. Don't leave them laying around fully charged unless your planing on using them in the near future. I know own four different drones. Think I need to go get my head examined soon.
are spark batteries lithium ion? You never wants to take lithium polymer batteries to zero. That's how you get them to swell when you charge them again. Just as bad as overcharging.
Very interesting all these explanations. Intelligent, suitable and especially useful content for everyone who thinks about flying a drone, especially when talking about an agile FPV like this one from DJI. Congrats !! Like to you !!
Cheers 😀👍🏻
Thanks a lot for the test. It is very useful for beginners to understand the limits a little better.
Great test.. Be careful not to lay the goggles around with the Screen not downwards. If the sun hits the lens it Will burn a mark on the screens inside.. 😊
I keep getting told that in each video. Duly noted! :)
What a magnificent flying area you have Ian, superb. Can you try a eg low/ no wind, 30m, slow speed, fewer turns and see how near to 20 mins you can get👍
Well the 40 kmh was the prescribed speed; you only get 16 mins hovering, so this is as good as it gets... And I'm stuck with the turns; can't really do a beyond VLOS flight on you tube..... :)
yet another great review battery life not putting me off ordered mine today can't wait
Interesting to see this from the "traditional" FPV view where you're watching arcane things like battery voltage :) Back of the envelope calculations - the 24% return to home point is approximately 3.3v per cell (assuming the max cell voltage is the usual 4.2v) so DJI are probably being sensible enough in getting it to turn around at that point to preserve the life of the battery.
I don't watch anything like battery voltage... I let the app do that so I focus on flying or filming... :) But there's no doubt DJI have the circuitry to protect the battery from people doing things like me... ;)
Thanks for the down to earth and common sense reviews Ian. Almost always within 400ft and VLOS the safety limits. Having flown RC fixed wing aircraft I guess the fpv is similar, the advantage, you don't need a runway. however the goggles seem very clumsy, When worn you can't see other approaching aircraft or potential criminals. So a spotter is essential. Looks like great fun though. I just get dizzy trying to keep up with the camera's movements.
Got my 1st drone dji air 2 recently and beginning to think I've made the better choice. The altitude here in Johannesburg is 5,751ft Above sea level, with the thinner air the dji air fly's for aprox 24 minutes, gimbals work great and the camera functions are excellent. My guess is the fpv would only fly for aprox 12 minuts at these altitudes, but would love to hear otherwise. Interesting point a done can weigh up to 7kg in South Africa.
Unless you really want FPV flying and footage, you're way better off with the Air 2; it's a great drone and yes, you'll have far longer flight times. Cheers, Ian
Thanks Mate, that was a good test and information.
Hey buddy it’s been a long time. I remember when you lost your drone over the cliffs. Then you lost the drone at night time because of the strong winds, that was the Mavic mini. I have the FPV drone to I just haven’t done the updates yet so that I can go ahead and start flying it thank you for showing me this test. As always be safe brother one of these days we got to chat it up
Hey big trucker! Nice to hear from you again! FPV is mad fun! Stay safe fella...
@@IaninLondon thanks brother across the pond. We should stay in touch more. Hey follow my instagram.com/MarcVisuales
Done. Ian_in_london
Hey Ian , much appreciated. Beautiful area. 🤟
Very interesting...
Shall first watch and then comment...
😁🛸🇧🇬
I waited with baited breathe...... :)
Very informative video, thanks Ian!!
my test gave me 12 mins in stationary hover on first flight in n mode... does batt increase with conditioning with time perhaps ? great vid ..thnx , keep them coming Ian.
Yes, the drone flight times will improve as the battery is put through multiple charge cycles.
Manufacture times are in perfect conditions and estimated but still amazing for how heavy it is I believe with a slightly larger motor size and either 4 or six bladed props this baby would S C R E A M awesome countryside to fly in stay safe sir ✌️🤙🤙
Thank you @Ian in London
Excellent demo
I think most some people who end up buying this drone will probably regret it a few weeks down the line when the hype and novelty wears off :) Its a good drone if you want to capture those fast moving sporting events and have the chance to travel and actually have something interesting worth filming...but personally I'd rather buy the mavic air pro or phantom 4 pro over this any day. Nice video as always :)
1 second ago
no way. Acro flying is so much more fun than camera drones. I never fly my mavics anymore I find them boring.
Flys longer if you keep moving forward. I heard hovering uses more juice plus wind effects it.
You have an amazing yard sir, thank you for the honest video! Cheers!
Nice review this quick moment give me Dizziness !
Thanks for the real life flight battery test👍🏼
Ian you done 60 seconds better than my spark... Next windless day test it the same as DJI do 30ft up and HOVER...... THAT'S WHEN YOU GET THE MAGIC NUMBERS
BRIAN
Actually, look at the specs; you get 20% less flight time when just hovering! But it's great times for an FPV.... CHeers
@@IaninLondon bloody hell 20%less. That's a lot... Not sure on what you paid say 1200 quid... Could you have spent that dosh on something where you get more for your hard earned cash. I just seems a hell of a lot of cash for the flight times... Thats why I've got into 1.5 and 2.00 mtr fix wing anything upto. Hour n 10 on the fix wing 20 on the 1.5. But I suppose it's all down to your style of flight. I've got some of my stills on the Richmond park web site.
Stay well
And keep them props spinning
Brian
@@BRIANFORWARD1 I guess it's all about perception. Most FPV builds get 3-6 minutes flight time. Getting 8 minutes is a gamechanger. 17 minutes is Twilight Zone material! (though 40km/h straight'n'level flight isn't _really_ a typical FPV flight profile).
Should’ve stayed at 400ft, give you more flight time as it force descended lol, thanks for the test 👍
Yeah, but you use more climbing and the wind is stronger...... Hard to know what's best 😀
@@eternalspring1034 dude, I'm pretty sure DJI means flying 40km/h in a straight line, every turn he makes uses up more power than if just cruising in a straight line..
Anyway..
Sweet
Keep well and be safe everyone!
😁🇧🇬🛸
Hey, like the vids but be careful with the headset, if the inside lenses are in view of the sun they damage easily
So I have been told! 😀👍🏻👍🏻
Great Job !
Great Video Ian no If's no But's thanks.
Nice 1 Ian
Best location!!! Best VIDEO!!! Nice!!!
Cracking video Iain! Love the time and dedication you put into it all. Your channel has been a great help making sure I make the right decisions about buying a drone for myself in the past :D
I've got a DJI FPV in my PC World basket and weighing that up against a new lense haha. The new regulations aren't helping the idea of me owning one of these however - still hoping they can retrospectively classify the DJI Drones so my Air 2 doesn't become obsolete.
Quick question: How many charges had that battery had before this flight?
Thanks again mate!
It's had at least 10... Glad I'm helping! I love my Air 2 as well so I'm hoping they sort something out.....
@@IaninLondon More than enough to get the full potential of the battery...
I'm averaging 12 min flights.. in sport mode. Coming from 2 to 6 min flights on a 4s lipo, the Xtra 6 min is simply amazing 👏
Idk I do 29m 53s cruising at 40 to 50kmh on my fpv.. but my top speed is only 80kmh
Great video as usual, love the setup that you used to film this, that's not really a lot of time per battery is it
Considering the speed, no...
My worst battery so far is 4 minutes 40. That was high wind, flying fast in manual.
Hello, how did you record the information that appears on the screen of the glasses? The clean image appears on my cell phone, without any details or information. Greetings from Uruguay
If you watch, you see me putting the Osmo Action face down on the upturned goggles....
Very brave, you are right though we never get the lenght of time the manufacturer claims, but not bad though
True. In practice you'd be flying this way faster..... 👍🏻
I'm curious, why did you test battery/flight duration in SPORT MODE? I'm pretty sure DJI advertized the DJI FPV flight durations at 20 Min. certainly utilizing the N mode. I would think the drone would be using less power for flight, ie 30KMPH versus 60 KMH, etc. Maybe because that's your favorite mode to fly in? Anyway, I think flying the DJI FPV in N mode would probably reach DJI's advertised flight times approaching 20 Min.?
I chose Sports mode as that's the mode most people will fly the FPV at; this is a fast moving drone and I thought it useful to see what typical life you'd get. The battery had had around 6-7 cycles; 10 is the ideal breaking-in number I guess...
Thanks bro
Caution running battery this low will make it difficult to get into an optimal landing position. I had 9% nearly drop into a field. Couldn't elevate above the grass. Landed just fine though. Mowed some overgrown weeds.
But this drone has an inbuilt feature that it calculates how much battery it needs to get back to its landing area and it automatically stops being in manual mode
Great videos Ian - learning so much from them. I have the Mavic Pro 2 - is this compatible with the DJI FPV V2 goggles or would I need to look at a different model of goggles if I wanted to fly the Mavic that way? Thanks in advance!
You can't connect the goggles to the 2 Pro....
Because it can break easily and its not very fixable I would fly it like a Mavic and have a short flights and lower quality video so I passed on it.
Hey Ian, still no way of recording the feed live ie screen record or cable ?
Not that I've heard of. There's no HDMI out, only the cable for your phone, and that only works with the Flly app, and only shows the plain camera view.... So annoying....
@@IaninLondon isn’t it, I hope they fix that as you have been able to see live flight data via screen record on every DJI drone , I’m sure a software fix could allow this hopefully
@@DMProductions I know. That infuriated me as they made their training vids with app info but not allowed us to record the apps
@@IaninLondon exactly and if using it for RUclips then it’s a problem , I’ve flown it and love it but for recording content that is crap, I like the way you did it with the GoPro but still you shouldn’t have to, hope they get a fix soon
I was going to try this, You’ve saved me the trouble :), I had purchased 4 batteries for this very reason of low flight time, Hopefully there is a firmware upgrade to increase flight time in the less power intense modes!. I seen your manual mode flight video, Have you been practicing the dji flight simulator since? I gave up with it because it felt nothing like the way this dji drone flys in terms of weight and speed, I downloaded a piece of software called liftoff on steam which allows you to connect your dji controller to the pc for a more “realistic” flight, Highly recommend it for practicing the manual mode
I am not a fan of simulators TBH, so no, I've just been practising Manual mode in real life.... (slowly but surely.... ) :)
@@IaninLondon good luck you have an awesome location to practice
Great video Ian..what did you do with the left stick to cancel Auto RTH for low battery..?
You press Brake to cancel the auto RTH. You lift the left stick to keep rising when the forced descent happens
Yes good info
I can not Complain about the time same as the spark still had fun with that old drone
Hi Ian. Have you done any videos or tests on flying the mini 2 low over water, 1-2m?
No, it doesn't handle flying low over water very well..... It can get confused and dip suddenly....
I bought mine last week. I get between 9 and 10 minutes on sports mode. Only I don't understand why I don't have a far range, after about 500 - 800 meters I will get bad connection.
Can anyone tell me how to set the battery to where it will return to home at a certain percentage. Thanks.
An interesting test ! 🤔
How do you make those audio alerts work? I have a DJI FPV. Thanks in advance!
can you just use the phone to view the flying?? like a GPS drone?
The more a see the more I think its not for me. It does not seem relaxing experience?
That's the point... It's not as relaxing as the Mavics but is way more involved....
Now you've got to do a flat out test cheers. I know if i bought one it wouldn't last long.
can you please tell me what the yellow indicator next to the distance meter is when taking off and landing?
Great review Ian. Do you think it's bad that drone manufacturers advertise the flying time that has been tested in optimal conditions at the slowest speeds, or do you think they should advertise the time that would you would get in real-world conditions?
Well, I think they're consistantly over-stretching the times, so we always know to take 20% off, but it's not a good way of marketing.....
@@IaninLondon Yes I suppose. I think if they advertised 8 minutes of flying time, I doubt it would be as popular.
Great video/test Ian. Any idea what the actual battery voltage is at 0%. I assume ~18v, but wonder if DJI are little conservative on their capacities.
I'll check the flight logs
Indeed voltage is the real thing we need to know when talking about eventually battery damage ...
@@IaninLondon Did you every check this one out.
Hi there, I can not find a printable version of the drone code... is there such thing ?
You battery killer!!!
😈😈😈
I have one question, can you have someone put the fpv googles on and fly the drone with your phone? I haven’t found a video on that topic yet.
That would be a cool test to cheers.
Well, you can watch the phone's camera view and control by the remote, but only the goggles see the app info.
@@IaninLondon thanks for the response. 😁
I was really thinking of getting this drone but the flight time doesn’t seem right for that kind of money! That’s too bad because I wanted to learn to fly fpv! Oh well…..2s here I come I guess!?
Air 2S is outstanding 👍🏻
Have you come across any apps for the FPV that allow you to plot automated waypoints routes?
i get 3 to 4 minutes in manual mode flying semi aggressively. Not much better than a conventional 6s quad, at all.
I also found if your not recording it lets the battery last longer. Still not the full 20 mins I think but I got 15-16 mins cruising at 60mph
Yes, I guess anything using battery will shorten the flight time......
Wonder what dji zero percent is? 3.5v per cell?
Captain Price pls don't do any more videos with out your CIGAR. Thank you sir.🤜🏾
Right, smoking a cigar whilst flying..... Will have a think... :)
During my research about the drone I came across some information that claimed the "20min" flight time was tested indoors. Which is deceptive for consumers but hey it's a China company so you shouldn't expect anything less.
He could have gotten the advertised flight times if he would leave it in N mode He chose to fly around in Sport mode which will use more of the battery's capacity. You can rest assured that's how DJI got 20 Min. of advertised flight times.
Great video, did you try to do flips yet in manual mode? Im gonna try it!
Not yet! :)
"if you're over water at crit low batt you can still go up" - what use is that??
Also, what if you hit 0% at say 100m - forced landing earlier? Thanks!!
What I mean is you can raise the left stick to stop it dunking into the water whilst you fly forwards to get back to land ......
Monday 1mph with 2mph gust
Cool
Please
Has anyone one tested how long it lasts in a static position at a certain height just static
Can it stay for 30 mins ?
I generally get 13 minutes per charge
Do you still fly the DJI FPV drone Ian ?
I do but not as much as I should.... Got more time after Christmas. 2022 is my FPV year 😎👍🏻
@@IaninLondon I watched your video when you posted it. I've had phantoms, mavic 2, mini 1 and 2, and also now the DJI FPV and 'proper FPV quads ' - there's no going back...
I heard a few youtube drone reviewers say it and thought N'ah - I love my camera drones, nothing will make me stop using them...
barely used the mavic and mini in ages.
Would love to see an FPV update - get a sim such as 'Uncrashed' dirt cheap and go ACRO.
Enjoy
Does taking it to zero knacker the battery completely Ian? I always land mine (Air 2, Flamewheel 450 & 550) at about ten percent to be on the safe side. Thanks for the video.
There are many that tell you not to, however I've not had issues with batteries after doing these down to zero tests, so I think DJI's smart circuitry is protecting things for you.
As already seen in other comments, should be interesting to know what voltage DJI consider 24%, 10% and particularly 0%.
For example my actual drone stars to return to home irreversibly if far more than 500m at 3.80v. If inside 500m start returning at 3.75v.
Ian
I suppose the real question is if you were not trying to build your RUclips channel and after some experience now would you have bought this drone
It's a lot of money for not a lot of flight time, but for Mavic owners who want to try FPV with everything set up, working well and amazing goggles, then this is perfect...
I just wish they had have made a smaller, lighter more robust one, then I would have got one but this to me will deffo break one day big time
So are you saying you can see the Googles view on your phone? Is that connected via a cable? Is that something you can only do on the dji fpv drone
.. Through the app... Don't think it's possible with a dji air unit fitted in your own quad and dji fpv goggles
If you connect your phone via the supplied cable and open the Fly APp, you see the plain camera view, but not the app info. All ther models you connect the phone to the remote control.
@@IaninLondon ah OK I've not got the dji controller... Just the Googles and Air unit my control is through crossfire
Hi I'm going to let you know how they test their drones at DJI. I discovered this with my Maverick 3 which they claim and flies for 47 minutes. What they mean it's just hovering in space and it did last 47 minutes but obviously when we move or draw I'm just going to consume more power. So literally what they're claiming is just hovering in space for both drones will last do the same test with fpv I have not done it with mine yet but I'm pretty sure we'll get the 20 minutes if it's just like standing and place.
Watch yesterday's upload :)
I wonder if one day we will get a drone with a solar panel on top that feeds the battery so the flight time lasts a extra 10/15 mins or so . I know there is solor drones but some little invention that drip feeds the battery a charge would be cool for extra flight time.
Thinking on how long my camping solar panel takes to charge my phone, no! 🤠
Can you use the Airdata app with this so you could critically analyse flight data
Yes; I did that on my wind test video last week
I get 8 min on sport mode dont know where they get 20 min
Wish someone would check voltage.. what voltage is 25% .. what voltage is 0% ?
We only know 100% is 4.2v a cell. (25.2v)
I'll check the flight logs and come back to you.....
@@IaninLondon flight logs show it.. nice.. hate my mavic never showed it
Aren't they lipo high capacity? I mean 4.35v while charged?
@@raffaelevalobra7128 no, they're not LiHV. As per DJI their Lipos 4.2v per cell. But it is a big battery. Bigger than we normally fly. Probably why they went with 5.3" props instead of 5.1"
great test, but was that battery toast after you took it too 0% ian
Actually I've doen 0% battery tests on all my Mavics; I thinl DJI keep a secret stash of power to stop you completely screwing them.... :)
@@IaninLondon I’ve never taken it down too 0% . Lowest 20% . This is why was come here , thanks 👍
I think it would depend on the chemistry and where the battery protection electronics (BMS) call it but I doubt very much the battery would be physically damaged whilst operating within controlled parameters i.e. 100% to 0%. It's temperature extremes that impact lithium-based chemistries 50.℃), not so much their charge state.
Did you manage to recover the battery (recharge I mean)?
Yes. :)