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Battery drop from 13% to 0 % in one second
488 17 2018-7-20
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Henrijs
Second Officer
Flight distance : 4194144 ft
United States
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I have problem with 2 batterys from 3. I have Mavic Air Combo pack with 3 batterys. Two of them landing drone in 13 % off battery left. After land drone turns off. Turning on again battery is 0%. Third battery works fine. All batterys have 20 charges only. Any sugestion?
2018-7-20
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DJI Stephen
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Hi. I am sorry to know that you are having this issue on two of your DJI Mavic Air's batteries. When did you purchase these batteries? Is the firmware of the batteries updated?
2018-7-20
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Henrijs
Second Officer
Flight distance : 4194144 ft
United States
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Drone is about two months old. I think updates was performed when i first turn it on. Is there any way to update them manualy?
2018-7-20
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DJI Stephen
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Thank you for the reply. All you need to do is to update the firmware of the DJI Mavic Air using the latest DJI Assistant 2. After the process, all you need to do is to insert and power on those two batteries to the Drone for them to be updated as well.
2018-7-20
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Henrijs
Second Officer
Flight distance : 4194144 ft
United States
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I performed updates via assistant already. Realy i think that problems started after that update, because i dont remember this dops before. Is there any chances, that only that one battery was updated? Because i dont remember any updates requestion after refreshing firmware.
2018-7-20
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Wachtberger
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Flight distance : 261509 ft
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Henrijs Posted at 2018-7-20 12:30
I performed updates via assistant already. Realy i think that problems started after that update, because i dont remember this dops before. Is there any chances, that only that one battery was updated? Because i dont remember any updates requestion after refreshing firmware.

You can check all your batteries one after the other with connecting to DJI Assistant if they are up to date with firmware. But I don't have the impression that this is your problem. 13% battery is critical level and it is absolutely normal that aircraft will auto-land and not take off again.
2018-7-20
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Henrijs
Second Officer
Flight distance : 4194144 ft
United States
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No, this is not normal. Battery drop from 13, 12 % to 0 % and after that drone make force landing and turn off. Only one battery works fine. How can i check battery updates on assistant?
I can try load my flight logs...
2018-7-20
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FlyDK
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Flight distance : 1636286 ft
Denmark
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Henrijs Posted at 2018-7-20 13:01
No, this is not normal. Battery drop from 13, 12 % to 0 % and after that drone make force landing and turn off. Only one battery works fine. How can i check battery updates on assistant?
I can try load my flight logs...

How can i check battery updates on assistant?
Wachtberger literally just told you... One at the time mounted on the drone, and check via DJI assistant 2.
2018-7-20
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Wachtberger
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Flight distance : 261509 ft
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Henrijs Posted at 2018-7-20 13:01
No, this is not normal. Battery drop from 13, 12 % to 0 % and after that drone make force landing and turn off. Only one battery works fine. How can i check battery updates on assistant?
I can try load my flight logs...

You can check with DJI Assistant on your PC or Mac. Just connect aircraft while turned on with each of yor batteries. If there is a firmware inconsistency between aircraft and battery, DJI Assistant will pop up a message and suggest to update.
2018-7-20
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Henrijs
Second Officer
Flight distance : 4194144 ft
United States
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Thank U. I will check that.
2018-7-20
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Henrijs
Second Officer
Flight distance : 4194144 ft
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http://www.phantomhelp.com/logviewer/9A0R538D4MUH4TT3PIHV/

There is flight log where drone perform force landing on 13% of battery left. After landing show 0% and turns off.
2018-7-20
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Henrijs
Second Officer
Flight distance : 4194144 ft
United States
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http://www.phantomhelp.com/logviewer/9A0R538D4MUH4TT3PIHV/
2018-7-20
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QuadKid
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Flight distance : 482349 ft
United States
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Henrijs Posted at 2018-7-20 14:03
http://www.phantomhelp.com/logviewer/9A0R538D4MUH4TT3PIHV/

You should never trust the App to be accurate when it comes to % of battery left. There have been many posts about forced landings in inaccessible locations causing loss of drone due to App being inaccurate and pilots pushing the limit.

I always have it at my feet at 30%. I don't trust a lot of things DJI but choose to fly them anyway always knowing what can go wrong usually does.

Took a look at the log, the battery looks like it drained normally but the app kept wanting to send it home.


2018-7-20
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dronist
Captain
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United States
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Dude, Just return them before you are out of luck!
2018-7-20
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jacksonnai
Captain
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if it is still not working well, return them to dji to get a replacement one  
2018-7-21
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Henrijs
Second Officer
Flight distance : 4194144 ft
United States
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First battery is dead. No indications and no charging. Probably second one will be dead soon. I have question to DJI. If i bring them to dealer, they will change this two bateries immediately, or i need to wait for sending them to you?
2018-7-22
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Henrijs
Second Officer
Flight distance : 4194144 ft
United States
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I am from Latvija, the official service is http://www.motosports.lv
2018-7-22
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Henrijs
Second Officer
Flight distance : 4194144 ft
United States
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Get two new batteries from DJI
2018-8-6
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