This has been posted other places, but I wanted to bring to everyone's attention the extra battery life I have seen since I disabled activesync. I am new here (posting wise, I've been a member but just a witness to the excellence) so please don't hammer me about this being posted elsewhere. I will try to find the link I came across. Basically going into task manager and disabling all of the replog.exe files except one has prevented my activesync from running every 15 minutes. I tried unchecking time sync but it kept running anyway. I have seen at least a 20% improvement over the past few days without doing anything else different. I have no emperical data to back this up, but I know that I use my phone consistently everyday and before I disabled activesync, I was down to 10% by 5:00pm. I am now at around 30% at the same time of day. I will update my post as soon as I find the link and if anyone has it handy I would appreciate the help.
To Disable (taken from post at XDA, credit runoverheads)
INTRO:
1) no one WM's process start activesync at boot! not poutlook, not tmail not etc
2) no any event notifications settings stored in registry. it stored in \mxip_notify.vol file, and can be managed only with special tools like FdcSoft Task Manager
HOW to disable
part 1) remove all event notifications except one with "AppRunAfterRndisFnDetected" argument. To remove use tools MemMaid or FdcSoft Task Manager (Notifications tab).
part 2) disable acivesync's periodic attempts to sync by wireless. It also disable run activesync at system boot.
1. Open Activesync
2. Menu > Add Server Source
3. Add Server address [127.0.0.1] > Next
4. Fill in the user,pass,domain fields [again one letter will do] > Next
5. Un-check everything [optional] > Next
6. Really Close Activesync [optional but recommended]
7. Open Activesync again
8. Menu > Schedule
9. Choose Manually for both
10. Close Activesync
p.s. (wm6) if you don't complete part 2, will get
repllog /remote /h
notification event, which you never can kill. It will be appears again at boot.
To ReEnable
http://forum.xda-developers.com/showthread.php?t=302459