To the battery topic the why your describing setting for batteries, it just that one battery. So, to change the setting in all your batteries, each battery needs to be connected to the drone and powered on and settings should be changed again. I should also say that the Autel evo had a battery firmware update I think in 2021 maybe 2020 I forget. Since this drone and battery has been disowned by Autel its worth checking that all your batteries have this firmware from 4 years ago. And because the firmware is actually to the battery, and not the drone each battery has to be plug to the drone and updated one by one for all your batteries. Just because you bought your autel battery a few months ago does not mean it has the firmware update. Which has to do the batteries discharge rate. Autel evo in its time, was the best drone when it came out, but it had problems with drop out of the sky. and here's why if you don't fully charge your autel or any drone batteries 4 or 3 time a year that drone battery will become compromised. No one talks about this all-rechargeable batteries when sitting in storage will start killing itself if left for too long without a recharge. so, if you leave a drone battery on in storage without a recharging it says one year. even though you charge it and everything seem ok the battery with fail you, and there is no way to tell if the battery has been compromised. You can tell if a lithium battery is really damaged, but not kind of damaged. So how does the kind of damaged battery fail you, well let say your batteries give you 20 mins of normal flight. the battery left in storage for one year without a recharge, which has been compromised damaging itself, not enough to show you that its damaged. That battery will show you, numbers that it is healthy but it's not, and you will find out because your drone fly with that battery will fall out of the sky in 10 mins of flight, not 20. 80% of all drone owners will lose that drone because of what i just said, batteries in storage for too long without a recharge. All drone owners have to full charge all their batteries 3 to 4 times a year every year for the life of the drone battery. if they don't, estimating your drones flight time is not possible. and if you're flying and a situation comes up where you're cutting it close on a return home kind of scenario. failure is surely to come.
I know this because I use drones in the military, tell other drone operators as this is my first and likely last time I will post on a message board. I am not a drone community kind of person.
