This is a well know flaw on the Canon 600 series... it is down to the capacitor on the LCD backlight shorting, the battery will drain even with the camera switched off...
I repaired mine following the instructions in the link (took me about 15 mins, and I'm no DIY'er) - I have since done another 3 for other people - don't be afraid (!) just get on and do it and save yourself a $100 repair bill or the same in 2CR5's....<a href = "http://eosdoc.com/manuals.asp?q=ELfix">the fix</a>
Can you remember what the instructions were, David? The link goes nowhere now - at least, nowhere of any use! Cheers /James
Battery drain on EOS 600
in Canon EOS Mount
Posted
Can you remember what the instructions were, David? The link goes nowhere now - at least, nowhere of any use! Cheers /James