Sorry man ... just every thread has negative crap lately. As a former P3P owner and now a P4 owner I follow this forum to learn tips and tricks. I wish the mods would keep the threads cleaner. I use to be able to pop in and in for 10 min grab a quick tip or read a good story ... now it's all bitchin and moaning. Still some good posts, just harder to find.
Understand that.
The first P4 I got from Apple had the Gimble squeak, but I didn't notice it causing any issues. I did order a replacement from Apple, and it does not squeak.
Good post. Non engineers bitching about range, ignorant of inverse square law. Difference in output power prolly amounts to 50 yards.
Mine is boosted. Won't fit well in a case, not easily removed, but if you want control and stable FPV at long range, it can't be beaten, assuming you pair it with something like the original W323 P3P and a battery mod. It will also get you the advertised 3.1 miles with the P4, with some video instability, but can't fix the battery lies of 28 plus minutes.
My squeaky gimbal also had major issues in flight, too! The gimbal got stuck, tilting the video frame 45°, generating a "maximum gimbal angle exceeded" error in the app!
It's not just benign!
Thanks for the update. My P4 was sent back yesterday to DJI, for a refund due to four different manufacturing defects discovered within the 7 day return window! Defective battery, charger, transmitter, and gimbal! Either that, or they lied about all those devices capabilities!
The battery cannot be flown to 0% because the aircraft is programmed by DJI to autoland at 10%. Surely, you are not suggesting that DJI based their 28+ minutes of flight time claim upon overriding their built-in 10% Autolanding function (which is designed to protect the battery from damage caused by depleting it below 10%) and running the battery all the way down to to 0%!
Where are you getting your information from?
Why is your statement "completely certain"? It is simply not true! What data do you have to support this statement? Check the individual battery cell voltages when the battery goes below 20%. They are still well above the voltages at which cell damage can occur! Even down to 5%, you'll still have cell voltages of around 3.5V/ cell. Would it change your opinion if I told you that DJI built an extra 20% cushion into the 0% readout in the app on the P4 batteries, such that a P4 at 0% is the same as a P3 at 20%, and a P4 at 20% is the same as a P3 at 40%?
Of course not. I can tell you though the first thing I thought of when they said redundant equipment, faster and 28 minute flight time was... That means I could go farther! It was the main draw for me because the other stuff is just not significant. I think the 4 is awesome and better than what I have in every aspect except one.. That's a non-starter for me. I am hoping they fix it. If they do I'm on Amazon.
Im not talking about DJI limited information, i'm talking about proven scientific information about Lithium-Polymer batteries, that apply to all type of li-po...
Where are you getting your information from?
Wherever it is, it does not apply to DJI Smart batteries.
They are their best when brand new, and need no conditioning of any sort.
Show me anywhere in DJI's extensive literature on the care and feeding of their batteries that says anything about babysitting the battery during the first 20 charges to reach full potential!
First of all, there is NO way people can contact him directly, impossible, if you did find a WEBMAIL address with drop menue subject email, He will NEVER see it! Government officials dont want to hear NOTHING from people! their thinking is, Shut up , suck it up and just keep giving us ur money!
You are overlooking the fact that DJI sets the 0% setting based on their own algorithms. All those others tests are based upon some standard that DJI does not use in calculating their own 0% displayed in the app.
Your years of experience is biasing your evaluation of the current smart batteries. No evidence exists that conditioning DJI smart batteries improves their life or their capacity, other than anecdotal results without any controls. Those claiming it works are not testing the same batteries without doing it. Those not doing aren't wasting their time conditioning batteries that don't require it. Long range flyers setting records will tell you that their exceptional results always are flown with brand new batteries, because after even 10 cycles, there is already a noticeable decline in battery life. You are not hurting your batteries by conditioning them. But you are not gaining anything either. Had you not conditioned them, your results would have been the same. Show me your controlled double blind studies with control batteries that establish your assumption, done with DJI smart batteries, and I'll reconsider.
You are overlooking the fact that DJI charge batteries to 4.30v witch reduce cycle count a lot, compared to if they were charged to 4.2v, and discharging any Lipo under 3.5v(DJI 0% is under 3.5v per cell) also reduce cycle counts more then if discharged down to only 3.6v-3.7v, im not talking about % numbers, im talking about actual voltage of lipo-cells, and how to get a LOT more cycles in exchange for shorter flight time in each cycle...It would not be at DJI advantage to advertise something that would considerably reduce sales of batteries, because peoples would get 15 min flights but 1000-2500 cycles per battery. This is not about DJI, it's about Li-po science, and how to get more cycles in exchange for shorter uses...
