In UK adverts, the 5D is listed as being supplied with a "terminal cap for NB2LH battery" - presumably this is a cover that allows one to use an NB2LH (the battery used in the 350d/XT) in place of a BP-511 type. I can see the point of this, as some 5D purchasers will be upgrading from the 350d (me for instance).
Has anyone any experience with using this smaller battery in a 5D?
Does the terminal cap allow charging with the 5D's charger?
I have several NB2LH's, having both a 350d and an S70, but I also have 2 spare BP-511s, from my G2 and 300d.