i'm not sure what you're arguing about at this point. it's not even on-topic. the numbers don't lie. USB = 550. Wall = 1100.sure it does. have you ever actually tested it? USB ports only have the ability to output 550Mah. your wall charger uses 1100Mah. which do you think charges faster?
As previously stated, I charge mine via USB at my office daily. I use the wall charger overnight.
It does not take long to charge it via USB. I also never let mine drop below 60%.
OP, do you have alot of contacts in your GMAIL account, or have you maybe added images to alot of contacts? is your phone syncing with your account throughout the day? maybe, just maybe, your contacts are getting hung up during a sync cycle. who knows why it's at the top of the list. you could try a factory reset. you won't lose much, just a few sound settings. all of your apps will come back on their own.