I have had my new Sky plugged in for two days. The power plug light is flashing red, when do I know that it's charged? Will it turn green at some point? I don't see an instruction manual.
The SKY only needs about 3-4 hours of charge time to be fully charged. I believe it should turn green when it does, but from the sound of it, you’re probably at 100% already.
I suggest taking it off the charger now and monitoring it from our online dashboard. I believe that it is now fully charged. If the lights do not change color 3-4 hours on the charger are sufficient to fully charge your device.