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I haven’t used my Canon EOS-1Ds Mark II for about 6 months. It was working perfectly before I put it away. I put in a battery in the camera, it cannot be turned on. It has different behaviors when I try to turn the camera on with different batteries. Old Canon original battery (measured 12.6V) - the top screen flashing an empty battery.Relatively new 3rd party battery (measured 13.4V) - nothing happened.Canon DC Coupler with Adapter (measured 13.4V) - nothing happened. Any ideas? Thanks!
Pull out the battery unit and on the top wall of the chamber is a small CR2025 battery which holds your settings. I would replace it. Depending on how often you’ve recharged the battery packs they be worn out. What does the charging dock unit tell you the batteries condition?
How did you fix this? My camera has the same problem.
