I never ran into this one yet. I charged up my battery, which was so low from sitting a while that I had to turn it on to charge. All was fine and it charged without issue. Popped it in the bird and a couple hours later when I powered up everything to fly, just before I took off I looked at the battery percentage and it was at 73%. That was alarming. Within a minute it dropped to 70% and I hadn't even taken off. The cells showed a full charge though. It just wasn't squaring up and making sense. Since it wasn't a big deal to not fly the location (company bbq) I powered down and didn't fly what was to be a litchi mission. But I was in the dji app when this happened. I just figured my battery was shot and that was that, or maybe I somehow had the darn thing on without realizing it the whole time (not so though). Later in the day I wanted to fly down whatever was left on the battery and in the absence of a crowd around now, assess what's going on. But this time the battery showed 98% and all was well. I flew the battery down with a perfectly normal flight to 49% and landed at that for a decent storage charge. Why the false reporting? Anyone run into that one? Kinda sorry I didn't restart everything initially but weird quirks like that put me off from flying, especially a nonessential flight.