ssc p7 with external power?

[tr0ll]

hi!
first off i'd like to say hi to all - this looks to be the right place to ask my question :

are there any ssc p7 with external battery ?

i don't mind the extra battery in my back-pack.

suggestions ? producers ? if nothing else : mods ?

i do have a niterider hid - but since it's in for service i'd like to get a backup-light

usage is mountaneering and cycling.


tnx in advance