started at 65% to 50% Battery down to 0%... using firmware .500, watch the 2.22 minute mark

Did you understand what happened to your battery? Did you find your mavic air? I presume yes by the thread title

Always, always start at 100%... or this will happen!

Thriller Posted at 2018-10-16 22:32
Did you understand what happened to your battery? Did you find your mavic air? I presume yes by the thread title

yes i did find the ma but i dont know whats the cause, this is the first time it happens to the ma, i just updated it on its new firmware last week

A CW Posted at 2018-10-16 23:25
Always, always start at 100%... or this will happen!

but is it normal from 50% battery to 0%?

Did you upgrade all your batteries along with Mavic Air firmware? My suggestion is fully charge all your batteries, factory reset your drone and refresh firmware along with each battery, try to fly again and see if it happens. I does not reuse my battery to fly after first flight with it even it still has 60% left. Godo luck.

A CW Posted at 2018-10-16 23:25
Always, always start at 100%... or this will happen!

Could you explain why please?

Optimus_Prime Posted at 2018-10-17 01:03
Did you upgrade all your batteries along with Mavic Air firmware? My suggestion is fully charge all your batteries, factory reset your drone and refresh firmware along with each battery, try to fly again and see if it happens. I does not reuse my battery to fly after first flight with it even it still has 60% left. Godo luck.

ok thanks i update all including the batt, but il try to refresh again the firmware

Bimmer1122 Posted at 2018-10-17 00:57
but is it normal from 50% battery to 0%?

It will depend on how long the drone was left to discharge. It very much can be.

battery fault maybe! most probably

Tomcatuk Posted at 2018-10-17 01:04
Could you explain why please?

As the battery will discharge naturally when not in use and the longer it is left the less charge will actually be in the cells but this will not always show initially when starting up the drone hence why sudden, huge voltage drops can occur when taking off with partly charged batteries.
Imagine a clenched fist being held tight, as the charge dissipates the fist will loosen and whilst appearing to still be closed it will open very easily when used. That analogy is the best one to describe charging these batteries which is why it is important to not only fully recharge the battery to 100% before flight to show an accurate voltage reading during flight but also to use the fully charged battery typically within 24 hours of the charge although many will fly the same day. I also let the drone hover for a good minute in front of me before pitching forward as voltage drops tend to happen early in flight and am gentle on the sticks for the first few minutes of each flight - especially in colder climates of <5c. This may explain why I have never experienced a voltage drop with any of the eight DJI drones I have owned and have flown them in temperatures from -10c to +35c.

A CW Posted at 2018-10-17 01:22
As the battery will discharge naturally when not in use and the longer it is left the less charge will actually be in the cells but this will not always show initially when starting up the drone hence why sudden, huge voltage drops can occur when taking off with partly charged batteries.
Imagine a clenched fist being held tight, as the charge dissipates the fist will loosen and whilst appearing to still be closed it will open very easily when used. That analogy is the best one to describe charging these batteries which is why it is important to not only fully recharge the battery to 100% before flight to show an accurate voltage reading during flight but also to use the fully charged battery typically within 24 hours of the charge although many will fly the same day. I also let the drone hover for a good minute in front of me before pitching forward as voltage drops tend to happen early in flight and am gentle on the sticks for the first few minutes of each flight - especially in colder climates of

i just re use the battery now i put it in hover it discharges normally again, but ill gonna refresh the firmware again to be sure

Bimmer1122 Posted at 2018-10-17 01:28
i just re use the battery now i put it in hover it discharges normally again, but ill gonna refresh the firmware again to be sure

Cool - and fully recharge it. Voltage drops occur more prominently in flight when in full throttle/pitch as the most power is being used from the battery at that time.

A CW Posted at 2018-10-17 01:29
Cool - and fully recharge it. Voltage drops occur more prominently in flight when in full throttle/pitch as the most power is being used from the battery at that time.

thank you

Bimmer1122 Posted at 2018-10-17 01:43
thank you

You're welcome - safe flying!

A CW Posted at 2018-10-17 01:44
You're welcome - safe flying!

i've check the battery voltage its 10.88 volts is that still normal?

How many percentage do you see on screen and how many lights do it light up? 10.88v kind of low

Optimus_Prime Posted at 2018-10-17 01:03
Did you upgrade all your batteries along with Mavic Air firmware? My suggestion is fully charge all your batteries, factory reset your drone and refresh firmware along with each battery, try to fly again and see if it happens. I does not reuse my battery to fly after first flight with it even it still has 60% left. Godo luck.

hello
i want to ask about upgrading batteries.? batteries can be upgrade ? i didnt hear about it before. Please explain to me how to do it ?
thanks

Optimus_Prime Posted at 2018-10-17 02:37
How many percentage do you see on screen and how many lights do it light up? 10.88v kind of low

below 50% battery

It would be worthwhile upping the log to http://www.phantomhelp.com/LogViewer/Upload/
for analysis, may help prove / disprove a possible faulty battery.

Ken Storm Posted at 2018-10-17 03:14
It would be worthwhile upping the log to http://www.phantomhelp.com/LogViewer/Upload/
for analysis, may help prove / disprove a possible faulty battery.

thank you

ismailg Posted at 2018-10-17 03:07
hello
i want to ask about upgrading batteries.? batteries can be upgrade ? i didnt hear about it before. Please explain to me how to do it ?
thanks

When DJI release a new firmware for a drone, there may be a chance that battery also getting update for its smart chip for controlling battery such as estimate fly time, control auto discharge... Usually for consumers drones or enterprise drones, the battery will be updated along with the firmware. You can hear about firmware incompetent due to different batteries firmware with the drone. So my suggetion is fully charge your batteries and update firmware for drone using Assistant 2 on PC or Mac, repeat the steps with all of the batteries (refresh firmware) and they all get update. Safe flights.

Bimmer1122 Posted at 2018-10-17 03:13
below 50% battery

With my case, it may show 10.5V if my battery below 30%. Can you check each battery voltage? May be you can try deplete the battery and fully charge about 4 hours and check again. Good luck

A CW Posted at 2018-10-17 01:22
As the battery will discharge naturally when not in use and the longer it is left the less charge will actually be in the cells but this will not always show initially when starting up the drone hence why sudden, huge voltage drops can occur when taking off with partly charged batteries.
Imagine a clenched fist being held tight, as the charge dissipates the fist will loosen and whilst appearing to still be closed it will open very easily when used. That analogy is the best one to describe charging these batteries which is why it is important to not only fully recharge the battery to 100% before flight to show an accurate voltage reading during flight but also to use the fully charged battery typically within 24 hours of the charge although many will fly the same day. I also let the drone hover for a good minute in front of me before pitching forward as voltage drops tend to happen early in flight and am gentle on the sticks for the first few minutes of each flight - especially in colder climates of

Thank you

Optimus_Prime Posted at 2018-10-17 08:18
With my case, it may show 10.5V if my battery below 30%. Can you check each battery voltage? May be you can try deplete the battery and fully charge about 4 hours and check again. Good luck

Thank you sir much appreciated

Tomcatuk Posted at 2018-10-17 10:40
Thank you

You're welcome   

I never start a flight with less than 100% battery level.

Optimus_Prime Posted at 2018-10-17 01:03
Did you upgrade all your batteries along with Mavic Air firmware? My suggestion is fully charge all your batteries, factory reset your drone and refresh firmware along with each battery, try to fly again and see if it happens. I does not reuse my battery to fly after first flight with it even it still has 60% left. Godo luck.

Batteries get upgraded too?  

Bimmer1122 Posted at 2018-10-17 14:19
Thank you sir much appreciated

You are welcome

Christine96 Posted at 2018-10-17 15:06
Batteries get upgraded too?

Yes, update its controller chip's firmware. Most of DJI drone's batteries are smart batteries and that chip control the charging, discharging, estimating time and also provide data from each cell inside the battery. Have safe flights!