Have been lurking for a few weeks, and joined specifically to ask about battery life. I'm an enthusiast, graduated from EOS 1000 to 60 last year, and have just inherited my Dad's 5Dii. It has seen under 5k actuations, and he got it as a retirement present 2.5 years ago (upgrading from a 20D).
The batteries in my 60D typically lasted 700+ - I rarely had to worry about charge status. The first thing I did when I got the 5Dii last week was install magic lantern - have never used it before, but thought that a clean slate would be a better learning experience. Might have been wrong on that.
I noticed that his batteries seemed to be draining very quickly the last couple of days as I was getting used to it and setting things up. Took it out today and took one of mine out as a spare, as the first battery was at about 30% - after less than 150 shots total, I had to replace the first one and the second is now at 69%. This seems horrendous - even with plenty of chimping as I'm checking things out.
Is the 5Dii battery hunggry? Surely not...
Does Magic Lantern hoover up charge? Can't think why...
Is there some setting I've missed likely to have caused this? Possible, but it must be pretty power hungry...
Any input gratefully received!
Really loving FF + 24-105 btw.