I'm curious about the way your ST10+ batteries act. When I first got mine about a month ago, I could charge it all night, head to the flying spot, and it would be dead. I could charge it up to 100%, leave it off, and within hours, it would be down to 40%. Yuneec sent me a new battery, and it started doing the same thing after about the 3rd charge. A drain in the transmitter is what everyone seems to suspect now. For two weeks, the new battery seemed to be working ok, if I made sure it was near full charge before heading out to fly. I would fly it 4 times in a day, averaging about 15-20 minutes per flight, and the ST10+ battery would be in the 40-50% range. It also started holding a full charge for several days without use. I've had it off for 2 days now, with a full charge, but tonight I went out to get video in Night-mode, to see how it turned out, and the ST10+ was down to 28% on it's own when I turned it on. Is this normal for you?? In another forum, people tell me that their ST10+ can go a week or two without needing a charge. I don't know if they fly as much as me per day though. I cannot go fly without giving it a charge. Yuneec wants to look at it, but will need it for 5 or 6 weeks. The company I bought it from doesn't have an ST10 to swap with me. I can't be without my Typhoon for a long period of time, because my videos are getting some attention now, and people are ready to pay me for pics/videos of their homes and properties, along with local Realtor's. I thought about buying a Typhoon Q, and using it's ST10+ for both of my Typhoons, until Yuneec either fixes or replaces my 1st ST10+. What does everyone think? What would you do in a need-to-fly-now situation? And does your ST10+ YP-3 battery have the same attitude as mine?