I'm glad the batteries worked out for you. Regarding the firmware, I'm very happy with the camera, and it's extremely unlikely new firmware will have an advantages that would interest me.
Dragon49, the idea is that you have a backup of the previous version in the Hard Disk to downgrade it if anything happen. Or if the new firmware doesn't have anything interesting to you, don't upgrade.
My cameras are old, so I suppose no new firmware in the future, so for me not problem at all.
EN-EL20 Newmowa batteries, passed the test period.
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