I need to know if the Canon T2i has the same battery as the T1i. I am borrowing a T1i from a friend and I won't be able to get the camera until the day I need it. I have a T2i and I have a power cord (that plugs into the wall) and several spare batteries. Will the batteries from the T2i fit the T1i?
The Canon T2i actually uses a newer battery pack - the LP-E8 as opposed to the T1i that used the LP-E5. The LP-E8 has better battery performance, but unfortunately you cannot use them interchangeably.
This is from the PCWorld Review:
Canon upgraded the battery pack to the LP-E8 instead of the LP-E5 that powers the T1i. The good news is that battery performance is better. The bad news is you can't use any spare LP-E5 batteries you may have.