UTStarcom PPC-6700 / XV-6700 / HTC Apache
Extended Battery?
http://seidio.com/6700_battery.htm »
Caution--the plastic housing that comes with it is prone to be easily scratched. Spray a coat of clear lacquer on it, let dry overnight and it's good to go.
You need the extra battery like you need the headset, voice commander software, and the registry edits!
But, any other time the case, and extended battery are way way way too annoying.
IMHO you gotta have both and use based on the situation (especially if you have a job like mine AND also use the phone for personal calls say on the weekends at a club or bar or something).
I use the vertical design Verizon PDA blue pouch with the belt clip and a top snap that really secures the phone and doesn't feel heavy around my waist. I never worry about battery power at all.