A rechargeable lithium battery is built into the camera to save such settings as the date/time" This is from the user manual page 4 for your camera. So, all you would have to do is to change the battery and then reset your time/date. Good Luck
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A rechargeable lithium battery is built into the camera to save such settings as the date/time" This is from the user manual page 4 for your camera. So, all you would have to do is to change the battery and then reset your time/date. [http://www.keepandshare.com/doc/2856197/powershot-sd450-rar-june-7-2011-8-21-am-3-2-meg?da=y|Here is] the service manual that deals with it as well. Good Luck
A rechargeable lithium battery is built into the camera to save such settings as the date/time" This is from the user manual page 4 for your camera. So, all you would have to do is to change the battery and then reset your time/date. Good Luck