[HD2 Android Q&A, Help & Troubleshooting and Genera] Hakeem5:
Sorry, not sure if this is int he right section but from the 1000+ hours i have used on this forum i decided to create my own post. Battery life on Android seems to be the evil culprit of MANY, i have finally found the BEST combo for battery life.

I have tried about 90% of the radios and android builds out there and this by far is the BEST. FIRST i wanna thank ALL developers, mods, beta testers and commenter's because without you all, this would not be possible(Android on the HD2)

My CURRENT setup(which i will probably leave on forever since its set now)

US Tmobile HD2

- Radio 2.12 (the latest one)

-Rom: Elegencia Rom (GTX version) --> http://xdaforums.com/showthread.php?t=651729 So i dont get the robot voice anymore

- Android Rom ---> ▐HYBRID▐07.09.2010▐warrenb213 CM6 9/6-V1.5a T-Mo US Optimized▐ Kernel:mitchyprima r10▐ RMNET version http://xdaforums.com/showthread.php?t=775150

- Special Settings in Windows Mobile: Turn off Auto backlight in windows mobile, turned of sync, weather, facebook, all that stuff that may secretly be on by default in windows mobile.

- Special settings in Android: Note: i turned OFF Auto sync for GMAIL email( since the FREE app called K-9 mail has MUCH better push email which uses much less battery than gmail's auto sync), no gps(sometimes wireless network location is used), no facebook sync, weather or news sync. You can set to whatever set cpu settings or sync settings you prefer, im just letting you know my configuration, the main thing to FOCUS on is the RADIO, the ROM(s) the Set cpu SCREEN off settings and the task killer settings.

1. Installed Set Cpu (Free to download on xda but i paid for the donate version to support the dev)

2. Set Cpu settings are in the PHOTO BELOW but as a recap

a. Click Autodetect

b. On MAIN tab, i set the max processor speed to about 652800 and the min to 245000, CONSERVATIVE SCALING, click SET ON BOOT

c. on PROFILES TAB, I added THREE profiles bt only ONE is necessary to get better battery life: SCREEN OFF profile, 384 max and 245 min, priority 100! POWERSAVE scaling

d. click on advanced tab, all the settings should be default, mines are

Sampling rate 200000, Upthreshold 80, down thresh 20, Ignore Nice load 0 and Freq Step 5, click APPLY and SET ON BOOT.

I also installed advanced task killer, not sure if it helps but my battery has been great since. Settings on there:

AUTO START checked, Show notification checked, Auto Kill Level: SAFE, AutoKill frequency when SCREEN OFF, Security level HIGH. OF COURSE you will have to put various apps on IGNORE so task killer doesnt kill them when the screen is off, so far i have ignored: App Brain, Advanced Task Killer(MAKE SURE TO PUT THIS ON IGNORE OR ELSE IT WONT WORK BECAUSE IT WILL KILL ITSELF lol), SetCPU, SUPERUSER, Google search, ad free, k9 mail and battery indicator pro.

All on ignore so they dont get killed, and i noticed ALOT of people use task killer but forget to put superuser, setcpu and advanced task killer on the ignore list so they may be getting closed out sometimes, which will make them ineffective for you.

Im in Chicago, my data has got up to about 1.5mb down with this rom, FASTEST speed i got yet! As you can see from the picture, I took my phone Off the wall charger around NOON YESTERDAY, it was on 100%, played word feud all day basically, browsed the web and tweeted, couldn't do much since i worked a 12hours shift but by 10pm when i left the office, i STILL had 88% battery left, used the device more when i got off, played angry birds, texted, tweeted, talked to a few people, fell asleep without charging and got scared that it would be dead, but i wake up at 9am...... STILL 68% i played more games, texted and tweeted, now im at 63% and its going on NOON again, so 24hrs decent amount of phone use and im at 63%, thats CRAZY!

My data is on H and 3g, DOES not turn off when the screen is off, i still get my WordFeud push notifications and K9 mail email PUSH when i get new ones(that also helped ALOT when i turned off the gmail push, and downloaded K9 mail, its FREE, has integrated inbox and is the BEST email app out there that ses the LEAST battery to have TRUE push notifications when people send an email to me.

Hope this helps you all, Give my combo a try, let me know your results, but so far this battery has lasted a full 24 hours and is not even HALF dead with moderate use.

side mentions:

NO BSOD

NO FREEZES

FAST DATA

WIFI TETHER WORKS

USB DATA WORKS

CAMERA WORKS

Every damn thing works lol thats what im trying to say. even if it has minor bugs which i have not seen yet, this setup and speed with battery life is the BEST, i dont even wanna risk something going wrong so i may leave this as my PERMANENT configuration.

*Edit* before you post saying the speed is slow, TRY IT OUT, Try the android ROM i posted with the set cpu settings i posted, and you will SEE for yourself* I tried the same settings on other android roms but they were just not good since battery was bad and data speed was bad so try that SPECIFIC ROM, see how you like it.