So, I just got my phone and noticed the horrible battery life. I didn't want to do the task killer thing, despite VCS recommendation, so I DL the 2.99 System Manager thing, but HAVE NO CLUE HOW TO USE IT!!! It is real complicated (for me) and should I be running it in the foreground, background, what does it mean if my memory circle is really filled up, but my cpu and storage are not? Any help, please!