Excessive Battery Drainage



I purchased the plex pass for the sole purpose of streaming and syncing mp3's from my collection to my iPhone.

I synced up a few audio book mp3's, and the process was shown as complete. Battery life is now diminishing much quicker than it had before syncing. I notice that the data transfer indicator is constantly kicking in - something that did not occur before file syncing. I have background services turned off. I did a search and found that this issue is somewhat common, but found no resolution.

Please advise.