Not getting the battery life you want with your Sidekick?  Try these battery saving tips

1.Make sure you log out/exit out when done with application  or games.  The app running in the background is going to drain power.  Aim and Myspace will try to keep updated in the background.Keep you Backlight to a lower level, 2 or 3

2. Sleep mode whenever possible

3. Kill the sound for instant messaging chats
4. Keep you Back light to a lower level, 2 or 3.

5. Change your key guard time down lower, maybe  to 1 minute

6. Put into Airplane mode when not using for extended periods.

Hopefully these tips will give you a bit more time with your sidekick before you need to charge the battery.