Well I got the 2150mA HTC battery w/ the TP2 extended back from the vzw website.
No surprise:
1. Battery fit in DI well
2. Battery was thicker, like 2x the 1300mA
3. Back for the TP2 did not fit on the DI(No Duh)
4. Back for the DI did not fit on it w/ the 2150mA in
4. Phone ran off the battery which came 2/3 charged
Surprise!
1. With back off and 2150 in, I could get the black silicone case on pretty well. Looked a lot better than duct tape but not perfect.
2. The battery indicator, on the notification bar, has exclamation point in it.
3. under menu>settings>about phone>battery>battery status says "unknown" instead of "charging" or "not charging"
4. The battery will not charge in the phone when plugged in!
I think I'm just going to return the set