u/outofmyheadgetout

Hey y’all, have this strange thing with my (kinda old) nikon charger. Whenever I plug it into a socket with my camera battery, the charger starts doing this noticeable high pitched whining/buzzing sound. As far as i remember it was always doing it, but today it kinda got louder or I am tripping.

Have you noticed this? Is it safe to use?