to fly 2.75 mi over and then back, what can I turn off to save battery

[Calsun]

The greater the elevation the thinner the air and the harder the drone has to work to maintain its altitude. Winds usually come up later in the day.

Flying 50 feet over the water in the morning to see how much battery charge is consumed with a round trip of 1km and then seeing what it is at 200 feet and again at 400 feet and you will know at what height the charge demand starts to climb and to what degree.

 

[Ayoquad]

I don't want to be "that guy" but isn't all of this illegal? Just curious how you guys feel about it.

 

[NoCoDrones]

LOL - I hate to say it but I was enjoying a party on the patio where on drunk woman kept saying: "I hate to say it but..." We are still mocking her to this day!

 

[Meta4]

The greater the elevation the thinner the air and the harder the drone has to work to maintain its altitude. Winds usually come up later in the day.
Flying 50 feet over the water in the morning to see how much battery charge is consumed with a round trip of 1km and then seeing what it is at 200 feet and again at 400 feet and you will know at what height the charge demand starts to climb and to what degree.

Air pressure makes a big difference when you are comparing flying a plane at 25000 ft and at sea level.
But the difference from sea level to 200 or 400 feet is insignificant.
The difference in wind strength though, could be quite significant.