My battery drains within 24 hours, even with On/Off switch turned off. I have tried 2 different batteries and 3 different chargers - same thing. It does seem to last longer if I place it in P mode before turning off.
The Canon battery was boxed and sealed with the camera. I'm pretty sure it's legit. I will probably just use that one since my shooting times aren't excessive.
Thanks for the current replies to my battery issue. After working with it for awhile, I believe I figured out the problem. Over the course of a few weeks, I managed to completely drain and recharge the battery numerous times. This seems to have fixed...