I’m having issue with my height being potentially wrong after launching my Mini 2. There’s plenty of satellite, really strong signal but after launching either from the ground or from my hand the height says 0.0M, even though I’m 6’4" and have to look up at the drone above my head it’s still registering as 0.0. When I descend it then become a minus figure and -0.5 is the lowest I can go, which is roughly knee height, before the controller message says “Landing”.
I’ve run and re-run the IMU calibration as well as the Compass Calibration and nothing changes. My initial belief was that I was flying over sand and the sensor couldn’t detect the ground properly so I moved over to solid ground, flew horizontally back over to my new position only a meter or so high, and the the height never changed even though I’d climbed up slightly higher.
Also, I’ve noticed that my battery life just get eaten away really quickly compared to other flights and I’m not flying into strong winds. Can anyone suggest a reason why this is happening and what I should do next please ?
I’m not sure if this is any help but, those altitude indicators are not accurate, I’ve been many a time well above ground & it shows negative 3 metres or whatever, so I would not put all your faith in what it shows, I think off the top of my head that’s the telemetry indicator, there not perfect.
I’ve labelled each battery, 1, 2 and 3. Battery 1 gave me 17 minutes on a relatively mild day, but I had them all in my pocket so my body heat could keep hopefully extend the flight times. Battery 2 was 15 minutes ,and battery 3 was 15 minutes as well.
as others have stated the indicated telemetry info shown on the APP screen during flight ,while nice to have is really more for entertainment ,and cannot be relied upon for accuracy
once the drones height has moved above that of the downwards sensors range from the ground below ,and moved away from the home point , it has no way of knowing its real AGL with any real accuracy ,do not rely to much on any of the info displayed on the screen ,as there are so many variables that can impact on the info displayed ,do however take notice of messages that come from the drone if the IMU senses that the drone is experiencing conditions outside of the drones operational flight envelope that has been programmed into it
just a quick one on flight time per battery,again this can vary considerably due to temperature ,weather conditions and how the drone is being flown ,at the time
real world times will never be anyway near those quoted
my battery regime is to charge fully the night before i intend to fly and then i do not take them down below 30% remaining ,then unless i intend to fly again within a couple of days, then i charge them up to around 60% which is two lights solid third one flashing and then they can be safely stored for several weeks i have well over 200 charges each on my MPP batteries which are over 4 years old and my mini3 pro ones all have more than 50 charges on them ,batteries dont like being stored fully charged for long periods and conversely they will deteriorate if allowed to become discharged to below 3.2V per cell for a long period of time
battery maintenance is a big part of the hobby ,and is quite simple to do but its important,if you want them to last as long as possible,as they are not cheap i have 4 batteries for each of my drones which i find gives me enough air time when i am out flying
Thanks for the advice on the battery. Looks like I’ve been doing it slightly wrong. I let the battery get down to at least 1 flashing light underneath the Mini 2 which, if I’m right is 25% for each of the 4 lights, then when I get home I recharged them all fully. From now on, I’ll charge just to the 2 solid lights and 1 flashing, then fully to 4 solid lights the night before I go flying.
