I got my S7 Edge last week and after thinking there was something wrong with the battery, because when I tried to charge it on the Samsung wireless charger it would flash green and blue then stop charging, I returned it and got another one. It does the same thing. Now I don't know where everyone is getting this awesome battery power but on the first and current second one my battery lasts 2 hours tops while using it. That's with the GPS and Bluetooth turned off, with or without a wifi signal. Before the Galaxy S7 Edge I had a Nokia Lumia 1520 and that battery lasted me days. So one, what's wrong with this charger, and two why is this battery draining super fast just because I'm using it?