hello everyone, i am new to 5d3, just got it two weeks ago...noticed the battery after 2.5 hours charge according to the manual, i am only getting about 100 shots or so the battery life drops to 67% (24-105 was used, no live view or long exposure, had power savings ever 8 mins)...yesterday had about 20 shots, battery dropped to 94% (using various of 40, 50, 24-105, no live view or long exposure)I once took about 2100 pictures at a lake shooting migratory birds and I recall changing the battery about 3/4 ths of the way. So well over a thousand. I am guessing 1200 a 1400.
thou some canon users i have met will always charge new batteries of 12 hours, is this a good idea at all? wouldn't this actually kill the battery's life even more? a fashion photographer i met at a bird walk, he said he could get 1500-2000 shots using the 24-105 in which i am amazed by it...what's your battery life experience?
when compared to the xsi i still have, single original canon battery for that gets about 700-800 shots, this seems battery issue? i have sent email to canon and was asked to try with a different battery and if not available, send the camera and battery to canon toronto for a checkup...that also means i will have to pay for shipping plus i will be out of a camera for the next little while, what's their usual turnaround time anyway?
any reply appreciated...
Change it. It is obviously faulty.
Edit: Since alexanderferdenand mentioned, my shots were all shot with the 100-400 on. My review time is 1 or 2 seconds and I hardly looked at the pictures till I was done two hours later...