So I flew up to Denver from St. Louis the other day and I've noticed that the battery life on my Evo is sucking compared to back home. Whether on WiFi or not, my battery on standby is only lasting around 9 hours but back in St. Louis I can go a couple days on standby. I use juice defender and it makes a huge difference back home but doesn't make any difference here. I'm running stock not rooted 2.2. Just thought it was weird seeing if anyone else has noticed this. Going to shut off my phone and charge while it's off to see if that makes a difference. I can't imagine it has anything to do with the altitude but who knows.