>Camera should be arriving soon to Nikon service center. > >I do not use wifi SD cards. I still think that there is >something wrong internally. I incuded the battery and battery >charger for their assessment. > > >Regards, > >Glenn Please let us know the outcome. Your camera should not be draining the battery after it goes to sleep. I've read that when the D800(e) is asleep, the power drain is less than the self-discharge of the battery itself. This means it should be negligible between on and off.
I have 2 D800e's and the batteries last forever in sleep mode. Regards, Craig