I do not believe the mikes being plugged in will drain the battery in my experience
I most certainly will. I did it twice. Also confirmed by Nicky.
The 9v or the other ones?
I thought I read somewhere it also drains "the other" batteries as well... But point being- disconnecting the n-box cables from the box itself between shows is a good practice...
Pretty sure it also depletes the internal batteries that supply 60V
Schoeps MK41 & MK4V | Schoeps CMC6, Schoeps KCY, AKI/2C, PFA, Nbox Cable/PFA | Grace V2, Nbox Platinum | SD744T, Sony PCM M10
Canon 16-35mm/2.8L mkii, 24-70mm/2.8L, 70-200mm/2.8L IS, 50mm/1.8 mkii, 135mm/2L, 100mm/2.8L IS, Sigma 35mm/1.4 A | Canon 6D, Canon 20D