Hey All, I'm starting to get the hang of flying my Falcon 40 but the flight time kinda sucks, since I only have one battery. I get about 5-8 minutes flight time on a single charge. Any advice on battery upgrades or any tweaking that will increase the flight time, or should I just get another battery. I've read a little on lithium batteries and theres a website called rtf-heli.com that has an 11.1v lithium battery. Will that do the trick and if so how much flight time will I get.