I have been running LeeDroid 2.2f with 32.49.00.32U_5.11.05.27 radio on my Desire and I've been getting great battery life from my phone. I overclocked to 1190 using Smartass and set screen-off and battery <15% profiles to 245 min/max using Powersave, and I was down to about 45% after a day of "normal" use (15.5hrs give or take). However, since moving over to DeFroST 6.1 I've been lucky to get 12hrs out of my battery. The only changes I have made are to overclock using "performance" on SetCPU instead of "Smartass" but only because Smartass doesn't exist on DeFroST, and to use LauncherPro instead of Sense. Everything else is the same. The only other thing I have changed is I installed AlphaRev S-Off just before flashing the new ROM, although I don't see how changing the H-Boot should affect the battery. For info, When I say "normal use", I mean: - 5-10 txts - 15-20 mins voice call use - checking Twitter and Facebook a few of times using H / 3G - 1-2 hrs music played via PowerAMP or podcasts played via DoggCatcher - Wifi on / mobile internet off when at home (abt 4.5 hrs) - Mobile internet on / wifi off when away from home (11 hrs) - GPS always on - Automatic syncing - Largely GRPS signal at work (8.5 hrs) - 2.5 - 3 hrs travelling) Now I know automatic syncing and having GPS always on will affect the battery, but don't forget that this has been the same for both ROMs, this isn't something I've just started doing. I'm going to let the new ROM bed in for a week or two before I start considering flashing a new radio, but I was just wonder if anyone else had noticed this problem too.