05-25-2014 11:32 PM
05-27-2014 01:59 AM
05-27-2014 11:57 AM
Sounds like the battery has reached the end of it's life. I've had LP-E6 batteries become useless after about two years of moderate use. Another sign is when they are not full but go to green almost as soon as put in the charger.
When I pick up a used body I always make sure I have at least one new battery to go along with it.
05-27-2014 06:57 PM
If it's always the same battery then it's mostly likely the battery. Note however, that if you open the battery door or the memory card door then a powered up camera will immedaitely power down and even if the door is closed again you have to power-cycle the camera to turn it back on.
So if this is happening with random batteries... check that your memory card door and battery door are able to solidly close. There's a micro-switch on each door that allows the camera to know if the door is closed.