QUOTE(X.E.D @ Mar 14 2009, 11:33 AM)
Disable3GDisable3GDisable3GDisable3GDisable3GDisable3GDisable3G
You're also recommended to unregister from 3G services on your phone co if you don't use them. My Diamond lasted 1.75 days on standby and usage before going to 0. Without 3G.
With 3G it was half (0.8 of a day).
Chill out bro... dont need so frustrated

Btw, my TD also 3G enabled. But I still can use > 1.5 days per charge (with default battery).
From what I read and my understanding,
1. different radio version does also impact on the battery usage.
2. if got some application running on background with high CPU usage will also causing the battery to drains fast. Not just 3G3G3G
//bruce07:
PDA e*****t sometime not that expert at all.
They installed alot useless applications that might not very useful for u (might running at background) and eats alot CPU usage which will cause ur battery drain faster than normal ppl.
Btw, I found another was to overcome the 3G3G3G issue that mentioned by X.E.D
WMLongLife by Chainfire: http://forum.xda-developers.com/showthread.php?t=478519This application will automatically help u to switch over 3G network when u're web browsing etc activities, and switch back to 2G network mode when ur screen goes off/idle.
Don't just terminate ur 3G service blindly because u never know when u'll need it urgently. This is just MHO.
Hope these information helps.
Evogenix