ok so I have a problem with the yuneec batteries for my typhoon H. the batterys will charge overnight and they will stay warm. but then I go to use one, everything will show fully charged on the controller and on the battery charger. but as soon as I take off seconds into the flight the st 16 controller will start freaking out to land because it thinks the battery is dead. the controller will show the battery as 0% until I land then go back up to 100% has anyone else had this problem. and what do you do to fix it? drain the batterys? i own the charger that lets you drain it to 50% but it doesnt seem to help doing that.