Anybody else having an issue with charging the AirPods' case? When I got in my car after buying them yesterday, I plugged them into my car with an Anker cable and let it sit for a bit to top up. After a while, I checked it and it never charged at all. I had a portable charger and a little keychain cable so I tried that and it started charging. Last night, when I got home, I plugged them into my official Apple iPad charger overnight. Woke up about an hour ago and checked. They never charged. I tried another official Apple cable that I use to charge my iPhone and it wasn't charging either. Plugged it back into my portable charger and it started charging fine. It seems that's the only way I can get this thing to charge. Anyone else having any issues charging the AirPods case? It also sucks that there doesn't seem to be a way to tell when it's actually charging except by opening it up and holding it next to my iPhone.