Battery Life — Bring plenty of extras. Between the EVF and the fact that VR remains powered on constantly when the camera is on (assuming VR is turned on at the lens; see next point), you can drain batteries fairly quickly with the Nikon 1 models. Which is a bummer, as I'm convinced that there is a flaw in the V1's firmware: EN-EL15 batteries age quicker on a V1 than they do on a D800. I've now had the chance to verify that in practice by isolating new batteries: the same number of charge cycles on a V1 produce faster aging than does the D800. Considerably faster, as in reaching 4 within months of use on a V1 while the same batch of battery is still at 1 on my D800. Nikon denies this can happen. It does, and I'm not the only one that's discovered it. The sad problem is that the V1 will refuse to use a battery aged 4, while the D800 will continue to use it just fine (and seems to show no degradation of number of shots that can be produced with that battery). The V2 doesn't seem to have this same problem (though it uses a different battery).
