I charged mine the other day as the red light came on. Charged for 12 hours and today the red light is back on and is not illuminating? For $150 I would expect the battery to charge for at least a week? Am I wrong?
I bought this mirror at Christmas time from Costco for the same price. If you don't have the plug in just right and all the way it won't charge as well. Just make sure all connections are firmly plugged in. I think it's an awesome mirror and hope I never have to be without it. You may want to try it a few times before returning it.