Straight charging ports like on batteries and wall plugs will have no problem powering the Air from a single connector; but the USB standard for computers has a maximum draw current of 500mA. You would need at least two connectors to power the Air from a computer.
Have you actually tried it with a 500mA supply? Both Puffit and Pinnacle do just fine (at least mine do), but of course charge at a slower rate.
I'd be surprised if Air wasn't the same deal.
Generally, you charge Li-ions at fixed current until the voltage comes up to over 4.0 Volts, then go to voltage control. That current is usually set by the charge controller, but if the source (wall wart or computer USB say) can only supply a lesser current, that lower current simply becomes the default. And time drags on.
It looks like signature is required on the tracking info. Is it like that for everyone else? Are you guys calling in sick or what?? Debating from working from home when it's supposed to arrive on Thurs.
First off, howdy and welcome to the fun and speculation. IMO tasty choice. If you don't like it, I suspect you'll have a lot of disappointed company.......
As to the delivery issue, most guys have them drop shipped to my house. I understand you new guys don't know that of course. PM me and I'll tell you where to send it, you can come by and pick it up at a convenient time. No need to thank me, I'm retired you know and have no trouble meeting the delivery. I'm happy to help out you guys that still have a job.
OF