Even without new technology, I wish more devices incorporated current fast charging tech. My X1 Carbon laptop may not have the world's best battery life, but b

Even without new technology, I wish more devices incorporated current fast charging tech. My X1 Carbon laptop may not have the world's best battery life, but being able to recharge it to 80% in ~30 minutes is fantastic. It's saved me on many occasions when I've been heading out of the house and realized that I forgot to charge it or needed to charge in a coffee shop where I couldn't sit near the outlet. I can only assume the lack of this charging speed in most products means that it's either quite detrimental to the battery longevity or the cost/weight of the electronics outweighs the benefit, or both.