I have some older BP-511 batteries that were once with my D30. I put them in my 5D and they seemed to work fine! (Also the charger that came with that D30 (where you can charge both batteries) charged both my new BP-511A's.
Is this ok? Will this cause any power issues or "hurt" the batteries, by me using the 511s in the 5D and charging the 511A's in the older battery charger?
Thanks for any help.


