Since the 5.0.1 update the mediaserver will not stop. It will use up to 30% battery power. Previously I was able to get nearly 40 hours of battery life with my usage now it is barely 12 hours. Only way I found to improve is rebooting the phone. I think this problem relates to Pandora app and mediaserver as it is the only music player I regularly use. Google, Pandora, Verizon please fix.