I bought myself a spare Ansmann battery for my Nikon D3 (EN-EL4 to be exact) and the d**ned thing doesn't work in the camera.
It charges up okay in the charger (which seems to indicate that the contacts are all right) but the camera remains completely dead when I put it in. I've even tried 'calibrating' the battery. No joy. The camera works perfectly with the official Nikon battery.
Does anyone know if Nikon have sneakily inserted some electronic thingummy in their batteries so alternative brands don't work? (Like some printer makers do with their ink cartridges.) I can't find out anything about it in Nikon information, other than 'only use Nikon batteries', which is what you'd expect them to say.
Or anyone got any other suggestions? I returned it to the supplier and they sent me what they claimed was a replacement (but how can you tell ... it was in the same packaging) and it still doesn't work.
Or any other words of advice - other than stick with the official batteries. I know I shouldn't have tried to economize. Won't do it again. Promise.
