Yes, and I have another battery that I got when I purchased it. Ran it down 0% and just got a damaged cell warning.
So I charged both of them back up, the one that died on me and this one that now is reading a cell damage.
I took it out today and put in the air to about 30ft with the first battery that died yesterday and went to 7%. The app said I had 5 min of fly time (40% battery I want to say) time left and dropped down to 7% like a rock and auto landed. So it looks like that battery is bad.
I popped the second battery in that came up with a bad cell warning. Put it in the air at 30ft and just watched. Basic movement. It did great until it got down to 33% and it dropped like a rock as well. It auto landed but almost didn't make it as it got to 5% when it landed.
Now I had these batteries fully charged and stored in my tradecraft from late January to this week. Even though they were stored for month fully charged, shouldn't these batteries not fail like this? I mean this could have been dangerous if I were flying far away, there would have been no time to bring it home and land. From what I've read, these things should have a life cycle of 400 cycles before the cells go bad. I've tried to email UShobby but they did not email me back about issue.