Nope. Not if they are not set up to always sync and be connected 24x7x365.

Doesn't seem to be a problem with stock app or the original Android app (you'll find out more about that in my P.S.) on my phone at least.

Again. I don't have that issue and I work in a concrete bunker of sorts so the connection to exchange routinely fails as expected. My battery lasts all day.

If your phone is setup to be connected 24x7x365 and updating all the time what would you expect out of the battery?

Based on your post you either don't understand that your phone is setup in a way to be always on and syncing or you've got something wrong that I've seen people report a reset has resolved in many cases. I would check out the stickied battery thread.

P.S.
There is an "alternate" email app for exchange. Actually there are several on the market like K-9 and one that is the original 2.1 Android app non-htc version available here:
Original Android 2.1 Email Client - xda-developers

 

Not that I've noticed. None the less, as soon as I get this thing rooted off comes all the default apps.

 

This is my second HTC device with Sense. Sense has caused me zero problems. Facebook may not always sync when scheduled, the weather widget has a personality of its own, but neither of those negatively impacts anything else in any meaningful way.

The only Sense issue I know of (and I'm not sure if it's still happening) is that the HTC battery widget can cause battery drain.

 

I personally don't like sense or the HTC built in sense apps either.. I'm trying out launcherpro beta, it has a look of froyo somewhat for the dockbar.. Very fast and smooth.. Much moreso than senseui..

It's in the market, give it a try.

 

am i the only one that doesnt mind since...? i mean i didnt like it much on winmo but i have no problem on android

 

I love it and my battery life is superb (as in 30+ hours on average).

 

i also like sense. i like sense a lot.

 

Love sense, sense rocks!

 

I really like Sense. I like a lot of the HTC Widgets. They look much nicer than their stock Android counterparts. I especially like the music player widget of Sense and Friendstream. If stock Android had all of the Sense widgets, then I would probably use it a lot more.

 

I like Sense UI! Vanilla android is sooo vanilla....

 

Based on the theory the OP is presenting, I think it would be more an issue of all the widgets you have running, regardless as to whether they were HTC Sense, Android, or 3rd Party brands...

 

I have never tried vanilla, this is my first android phone. But from what I can see, for every custom Sense-like addition you would want, there is a marketplace app that you can download to offer that functionality. I would rather have Vanilla. The only thing I'm not sure about that might be better on sense is the keyboard.

 

That is exactly what you should be getting. It is what I am getting and the others I know who have DIncs as well as the pluthera of people on here are reportedly getting.

There are a number of threads devoted to phones not sleeping. They'll walk you though how to troubleshoot and find which apps are causing a problem. The short story is to kill apps one by one and let your phone sit each time for 5-10 minutes and make note of when the sleep and awake time are finally different after it goes in to sleep mode.

What you are experiencing is not normal and likely a buggy app with a sync problem. Take comfort in the fact it isn't normal but you should be able to fix it and get normal use. You've mentioned the issue with your exchange connection. But I don't know how your mail app that came with your phone is different than mine. To be safe I would try the app I linked too just to rule things out.

I would have to respectuflly disagree as evidenced by the other people who replied also reporting no issues. If something stock were causing the problem it would be causing the problem for everyone.