So I got greenify because people say it works great. My battery issue has more to do with large drain when internet it on (4G/WiFi). I think it's network related, since when I am not connected I only have around 0.6%/hr battery drain, jumping to 3% per hour on WiFi and 5% per hour on 4G. Since I can't use GreenPower anymore thanks to Google removing app control over the data toggling, I'm on the search for a non task killer battery saver. Greenify was highly recommended so sure, try it. The problem stems from its not hibernating Facebook and a few others properly. From what I understand, once I hibernate Facebook, it shouldn't be running until I call it up. But every time I click on hibernate, it's force closing Facebook, making me think its not working as intended. Never mind the auto-hibernate does not work with a secure lockscreen bit. Anybody else having an issue?