Labroides
Core User of DJI
Flight distance : 9991457 ft
Australia
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Johnnokomis Posted at 5-4 15:14
Okay let's put this another way. Pretend you own a bakery, you order 100 lbs of flour. When the order arrives and you find out it's only 65 lbs. How would you feel? Is that within margin of error or are you going to be upset?
If these test were done at sea level then it means they were done very close to the ground (obviously). Just a few days ago I pushed a battery more than I usually do. Low battery auto landing took control at 8% or 9%. So how could their test be all the way to 0%?
Okay let's put this another way. Pretend you own a bakery, you order 100 lbs of flour. When the order arrives and you find out it's only 65 lbs. How would you feel?
Your analogy is not valid.
DJI don't promise 100 pounds of flour and deliver 65 pounds at all.
They specify a max flight time and tell you the details you'd need to follow to get something close to their 100 pounds.
DJI's specs are a good and valid figure for comparison just as a car manufacturer's gas mileage numbers are.
The car maker's numbers are also under strictly controlled conditions to squeeze out the most they can and you will never achieve those numbers in your daily driving.
But what else can DJI or car makers do?
Everyone has their own kind of driving/flying and conditions.
They will all get different results.
Test results under controlled conditions are the only way to give an indication of battery life, even if it is under controlled conditions.
If you want to get DJI specs flight time you have to fly in a controlled test environmentwith no wind, at sea level, constant flight speed of 32.4 kph, APAS off, AirSense off, camera parameters set to 1080p/24fps, video mode off, and flying from 100% battery to 0% battery.
Anyone who has flown for a while should understand that every time you slow and then accelerate the drone, every time you climb, you use more battery than in DJI's testing.
If you fly faster or slower, if you push against a headwind you use more battery.
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