Are you new to technology? I can charge my phone in my car,house or on a fucken boat.
I can buy a cheap ass USB battery to hook into said phone when its getting low on power. Why do you think this won't have a mobile way to charge.
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How do you know you will have to pay extra? If this thing has 1 USB port you can hook it to your car and be fine, providing ur car isn't old as hell.
Also right not its just reports on what the battery life is, we won't really know until we get hands on with it. There could be a mobile setting that extends it by a hour or two.
Who the hell knows at this point.