Possibly Kimber. Nice looking piece.
Kimber was my second guess, haha.
As far as batteries go, id say just invest in a quality charger. Im sure you could spend 25 bucks on an ultimate battery, but the performance gain would be negligible if you properly took care of the regular AW's that come with the provari already.
I use AW IMR 18490 with the regular cap. But I use AW IMR 18650 w/ the extended cap.
Be careful what you say brother, the "anti's" can twist what you type if you say stuff like that in the same post as talking about guns! I can see it now. "...and then he said he used an Assault Weapon model Indifferent Murder Rifle 18490 with regular capacity 'assault clips.' After that he said he used the more powerful AW IMR 18650 w/ the extended high capacity ultra super killing clips!!! We must ban them all, from break barrels to the evil AW IMR's!! (and we can get the nasty e-cigs while were at it toooo!!!!!)
LOL I kid I kid....Hopefully....