Setting both banks to "D" is absolutely wrong. Mirror up for sensor cleaning does not depend on the banks selected.
As the previous responder said, the only requirement is that the battery be near full charge. This is the same for all Nikon DSLRs introduced in the last several years.
Gary in SE Michigan, USA. Nikonians membership - My most important photographic investment, after the camera. D4, D810, D300 (720nm IR conversion), D90, F6, FM3a (black), FM2n (chrome) YashicaMat 124, Graflex Speed Graphic 4x5 My Nikonians Gallery & Our Chapter Gallery