I got my R6 delivered 10 minutes before I had to leave for work I only had time to get the battery charging. But after plugging it in, I noticed a sort of whine sound coming from the charger, like coil whine on high power electronics. I'm used to that with PC components, but never with a battery charger before. Do you think this is a normal thing, or should I send it to Canon for a replacement? I'd prefer not to try out a third party charger/battery right now.