Canon Eos 5d Mark II Clock Battery Replacement
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This is a simple short step-by-step to replace the date and time battery in the 5D2. Most people will only run into this problem after long-term not-using the camera w/o leaving an operation battery in it.
- Author: Hans Bruch jr
- Difficulty: Moderate
This is certainly a job you can do yourself, and it doesn't break any seal so it's even warranty-safe.
Just make sure you use a screwdriver that fits perfectly! otherwise you'll end up damaging those little screws.
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undo screw near the letter 'o' from 'open' that's indicated on the bottom left of the camera
Undo screw as indicated by the red arrow.
for this, you need to lift the rubber covers over the data connectors