I pose the question to anyone willing to chip in..what is the biggest factor in extending flight times for a quad? Best/largest battery, decent motors/props, cheap escs? Good battery and Best motors? Best of all?
One of the places I fly I see occasional phantom flyers and this is typically what happens. I start flying, he takes off from his phone, shoots up to couple hundred meters and its no longer in sight. About 8 minutes later my voltage alarm screams at me and tells me to come down which I do gladly. Another 10 minute later I'm sure the phantom lost GPS and drifted to infinity. Another 5 minutes pass and I hear motors and finally see the quad coming down for a landing. He takes battery out and goes again.....
I don't regret any of the time I've spent working on my quad as I have learned alot and know how to handle many different situations but I've often wondered what is the secret sauce that gets you to that type of endurance.
The big thing I noticed from the DJI quad is the 5200 mah battery that costs 100$. I typically fly 3300-4000 mah. I also typically fly the battery down to storage voltage (11.4 V) levels to hopefully extend life of battery. From what i've seen the dji users have no idea the voltage of the battery but are given percent life left. How far are they pushing their batteries?
My next vehicle I'm working on will be around the 1.5-2.0 kg. I'd really like to get to 20-25 minute endurance. Any advice on how to push the endurance please inform me. I typically use HobbyKing for items since they are cheap but maybe this is my downfall. I've never tried any of the top end stuff but if it would bring me to the 20-25 minute level I'd consider it.