I already get 6 - 8 hours of lifetime out of my laptop, I don't really need 50% more battery (saving a few ounces or cubic centimeters wouldn't make much difference to me either). I can use the power outlet on the plane if I'm on a flight longer than that.
However, I would love 50% more battery lifetime in my phone without adding more weight or volume.
Or 50% more range in an electric car (or reducing the size/weight/cost of the battery pack).
There are lots of applications for batteries that don't involve taking large batteries on the plane.
However, I would love 50% more battery lifetime in my phone without adding more weight or volume.
Or 50% more range in an electric car (or reducing the size/weight/cost of the battery pack).
There are lots of applications for batteries that don't involve taking large batteries on the plane.