You could use an extra 2S LiPo battery or the Q500 alimentation with a cable soldering.
Please note, you may lose the Yuneec guarantee if you make a weld by opening the body of the Typphoon Q500. For me an extra 2S LiPo battery is nice but you must find a place to fix it without compromising the flight stability of the Q500 and the charge and balance of LiPo battery have to be easy ;-)
Go for the Marco.Polo,two mile range,uses the LoJack technology.I use them on all my quads,have never lost one yet.no subscription fees,rechargeable with well over several weeks of battery life,uses a hand held locater to track down your lost machine.
If the controller loses comunication with the drone and you have a fly away it will only show you the last know position where it lost communication. Not where it came down or where it actually is. It could be far away form it's last position. I have the Trackimo 3G and it works great. You can attach it to anything or anyone. It will tell you the exact location of the object in real time. You can track it's movments. It can show you a 24 history of where the object has been, it can send you text alerts and a whole lot more.