Questionable internals

This charger looks slick and charges fast but I had a pretty serious problem with it: It makes a distinct electrical hum when charging. This wasn't an isolated incident as I emailed their support and received a replacement part that hummed in a different pitch. This is an indication of questionable internal components, or I got two bad units in a row. (Support was good btw). It is extremely loud for an electrical hum so I find it pretty weird no one else has called out this issue. I do not think that this is a dangerous charger, but it is definitely not one I would leave by my bedside, or anywhere that wasn't already noisy. Certainly not at my desk or on the nightstand.

###

