Bob
I don't know if any body out there get a small problem like mine.
When I upgrade memory of my hp tc1100, after insert the new memory card I find out no more room to keep the RTC inside the tablet, the battery is Sony 2025 with connector. thicker than the space to slide in, before it just stay at the space of the memory card, so I have to leave it outside and tape it.
If someone know there is any smaller battery can replace to fit inside tablet, please let me know

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic