Re: Another vapour-ware
Actually, your almost 3000mAh AA is made by some "computer wizard" with label editing "skills", changing 2000 to 3000 because "everyone else is doing it".
In the Li-on space, typical capacities for the classic 18650 size cell have gone from less than 1800mAh to today's 3100-3400 mAh for the premium cells from premium manufacturers, a doubling in capacity.
One thing that annoys me is how media frequently reports on "breakthroughs" in making a battery that charges in 5 minutes. Such Li-Ion batteries already exist, the capacity penalty you take for quick charge isn't even that big (Compared to supercapacitor capacities). Dumping that much power in 5 minutes requires some nice fat cables and chunky charge electronics, though. Your average usb cable would turn into a glowing white noodle in seconds.
If media reported on car tyres like they report on battery tech, every week there'd be a sensational post reporting on a new innovation, a new tyre that is rounder and not square. Every month there'd be reports of amazingly low friction tyres promising to save 75% energy, the boffins are calling it "railway". A couple of times a year there'd be reports on "out of the box" thinking derived "innovations", pht wings on the car, "inventing" the "aeroplane", and tyres are only used a short portion of the travel. Stick legs on the vehicle so it walks, no tyres needed at all, and no road infrastructure either, all problems solved forever!