How do you charge the battery?
I understand this is solar powered up to 10 months but then what do you do? Can you recharge it? How?
I believe it is 11 months with no light per the manual. Mine arrived on mid charge and has been at high ever since the first day. I don't think battery charge will ever be an issue with this watch. Just normal wearing in the sun, driving, doing yard work, going to the beach, running, any outdoor activity will charge it. You could leave it in a sunny window or outside for a while too.