changed tones with "battery low" tone

changed to my npm-5 (5510) v03.53 tones.
some of them works ok, but some has wrong tone like "battery low" or "alarm clock".

i was just wondering why.
does those tones have ToneID same than eg. "battery low"?

if this is true, then those tones can be done easily as ringtones, just put right toneid and name and some dummy tonedata..
but them don't work if putting other phone if that phone has different id:s or something.
or i am really wrong?

i try to change toneid:s later to get all ringtones work :)