Has anyone had any issues with there 7D and battery performance, when I leave my battery in the camera for a week I come back and the camera tells me it has no charge left in it. I put it in the charger and it tells me the battery is half charge or whatever I left it with, charges quickly puts it in the camera and it shows it is fully charged. When it does it I have taken the battery out and put it back in and still shows no charge. With the 40D I could leave a battery in it for ages and it never noticable ran down
Initially I thought it was the battery so I took it back to the shop and got a replacement, same problem and with the canon spare I got. The problem has to be with the camera which came with the latest firmware update. I am going to phone the shop I got it from tomorrow but I thought I would pick your brains.