[peter l]

I tested out the battery life to maximize it yesterday. It work great!
These are what i've notice, 10% drop within 1 hr of using constant internet browsing. I texted and made voice calls, it last me 2 hrs straight with 10% battery life dropped. Conclusion: when fully charged, you will get 100% life. Using internet straight, you will get 10 hrs. Using text messages and voices, you will get 20 hrs. Another addition, standby mode without a single percentage drop!

Here is what I use on wm6.1 sprint stock. It will work on wm6.5 also:
1 - s2u2.cab : sliding lock screen
2 - NoPushInternet.cab - saving ram and battery life.
3 - strra data disconnect 60 seconds automatic after you close browser.

This next series of tweaks will improve the speed ,memory,and battery,you will save 10mbs of memory and your battery will last alot longer.

1st, install NoPushInternet.cab and do a softreset.
2nd, do a registry edit and a softrest:

To make the change, navigate to “HKLM\SOFTWARE\HTC\ResProxy” using a registry editor and change “ShareMemSize” to 0. By the way, if you want Opera to show up in HTC’s task manager, go to “HKCU\Software\HTC\TaskManager\ExclusiveList\Syste m” and delete "Opera9.exe."

3rd, install strra data disconnect 60seconds.cab and do a softreset.

*strra data disconnect right away, even it say 60 seconds.
Thanks to InsomniacJedi for this cab! Hope I can help to max battery life.
Enjoy!!!