When I see teardowns for most computers/gadgets, I'm always puzzled by the size of the battery. Somewhere someone decided that battery life barely long enough t

When I see teardowns for most computers/gadgets, I'm always puzzled by the size of the battery. Somewhere someone decided that battery life barely long enough to sell the product, is good enough. What I expect to see (and I do in Apple products for instance) is the battery dominating the volume of the product.