If im not mistaking we are still ising the same batteries as we did 15years ago..

Admittedly we have seen a lot of battery technologies posted here that never seem to get picked up in the mass market. But i assume that it was because even though it showed promise, it may have been fragile or even dangerous. These batteries here look great, but in the end it's about capacity, number of charge cycles, that kind of stuff.. Who wants a battery that charges in 30 seconds, but can only be charged a dozen times? Might be good for a vacation, or a photographer, but end the end, we need batteries with hundreds of charge cycles. And then we have to face the whole charger vs battery price. A charger the size of a laptop? that... might be a bit much, since it would cost a bunch too no doubt.