Okay after a little research you are correct. But there are some ROM Monitors that i have seen, a long time ago mind you, that used to watch the CMOs and let you know when the battery life was getting short. The batteries used back when PC's first came out didnt last as long as they do now. So we had to keep a eye on them to make sure we didnt lose our BIOS settings.
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Phone: LG Optimus G Pro
Running: Stock JB from LG with Nova Launcher