MPro Battery from ~30% to 3% instantly

[PowellSkier]

Took my Mavic Pro out this morning with DJI Goggles. My battery level was showing ~30% when the drone suddenly dropped to 3% battery, initiated auto land, then suddenly dropped straight down from about 50 ft up. Needless to say the gimbal and props were destroyed and an arm broke. I never received a single low battery warning. My phone was attached to the remote and I think I saw a message about the battery being in discharge mode? I just took this battery off the charger before flying and it showed a full charge.


Has anyone else had this issue?

 

[old man mavic]

did you check the cell voltages in the app before you took off sounds like one of them went below the critical level

 

[sar104]

Post the flight log.

 

[Kilrah]

How old is the battery? Was it maintained as per instructions, especially

Fully charge and discharge the battery at least once every 3 months

This calibrates the percentage meter to the actual battery capacity and is required for the displayed percentage to mean anything.

 

[bvsolutions]

I was using a battery with a slightly swollen bottom
I took off with the battery at full charge and immediately headed away.
At about 130m the low battery alarm went off and the MP started the emergency landing routine. I was just able to guide it to an opening in the trees.
By time I reached it, even the indicator light was off.
Perhaps I should retire this one.

 

[WithTheBirds]

How long before you flew did the charger report 100% charge completion? Something is wrong with this story. If you took off at 30% this is what you would expect. The pack is only as good as the lowest voltage cell and the total available charge depicted in the app is useless.