The Password: and login: strings are from lightdm, and bug #831026 is about them.
Other strings are from unity-greeter, and translatable. We don't have an uptodate language pack, however, so they may appear untranslated, even if they have a translation in Launchpad.
Battery menu:
"Battery"
We have bug #846895 about this.
The Password: and login: strings are from lightdm, and bug #831026 is about them.
Other strings are from unity-greeter, and translatable. We don't have an uptodate language pack, however, so they may appear untranslated, even if they have a translation in Launchpad.