Comment 9 for bug 179815

Just for future reference, these these sorts of questions belong in the answers area of launchpad https://answers.launchpad.net/ubuntu . But for the sake resolving this. . . in the gnome panel, right click and select the "Add to Panel..." options. In the "System & Hardware" section click on the "Battery Charge Monitor" icon. This should add the battery charge monitor to your panel.