I have the N4 and an Optimus G. For two phones that are suppose to be the same the battery life is far from it. The LGOG has a far better battery life. On the N4 every task, txt or any other function reduces the battery life noticably. Would a hard reset fix this issue? The battery app shows the android system and screen as the most usage. I've turned the screen down to 50%. Any help appreciated.