Storage
Storage indicates the detailed memory consumption and
free memory space of your device whether internal or SD
card. You can also set the default storage where you
want to save your pictures, music and other files.
To do so, click Preferred install location and choose from
the following options: Internal Storage, SD Card, or Let
the System Decide.
Battery
Displays the battery percentage and battery consumption
patterns of your device.
Accounts & Sync
You can use multiple Google Accounts and Microsoft
Exchange ActiveSync accounts on your device. You may
also be able to add other kinds of accounts, depending
on your apps.
Some you can add in the Accounts & Sync screen, as
described here. Others you add using an app that works
with those kinds of accounts. For example, you can add
IMAP and POP3 email accounts with the Email app.