I've recently purchased the Samsung Note 3, overall great phone so far very quick big and shiny.
I've had some problems with the battery i've seen some weird applications using pretty much battery while i can't recall which app it is.
Battery after almost 13 hours:
Wierd media application using alot battery.
Weird android System using pretty much battery.
I tried disabling so much features but still can't seem to fix it.
Not using any music on my phone, the only thing i do is accepting photos on Whatsapp and making some.
I've placed a SD card before in this device but removed it because i've read something about battery draining sd cards.