I've heard the horror stories and granted my adventure with DJI is not over but... About two weeks ago my Battery 3 exhibited some serious deviations in Cell 1. I sure don't want it falling out of the sky. HealthyDrones.com - Innovative flight data analysis that matters I tried fully charging it and then discharging it with the Phantom Angel (great product by the way). Then after charging it, I flew with it again. During that flight only one instance was recorded as reported on my HD account but again, Cell 1. HealthyDrones.com - Innovative flight data analysis that matters I didn't experience any problems with the flight but I decided to report it to DJI Customer service. I used the chat on their website. Within a few minutes I had explained what I experienced. A little while later I received a shipping label. I found a box and dropped it off at UPS. It was shipped ground so it took until the 14th to get their. I received noticed that it was received yesterday and to allow two days for processing and testing. This morning I received an email saying that the repair cost quote was ZERO. So it looks like they are sending me a new battery at no cost. I will follow up. I hope this means that DJI customer service has matured.