Elsa- Mine does not have that problem. I'm using all -20 batteries and have wi-fi off. If you'd like, this weekend I'll go through all my settings and post a complete list. If you configure your camera identically to mine and the battery still discharges rapidly, that would seem to indicate a hardware problem, which Nikon would need to fix. But, if the problem goes away, then it must have been your settings, and you can change one setting at a time back to your settings and observe the effect on battery drain until you identify the setting or settings causing the problem. Let me know if you'd like me to get the list of settings together.