Sure, you need to carry a power cable. But tied to an outlet? No. Where do you go for "an extended period of time" that doesn't have a power outlet to charge after you're done working away from one?
I can understand such a need for, say, photojournalists, or war correspondents, nature professionals and the like, but what is the use case for the ordinary guy?
Or do you consider working on the laptop on the beach or in the woods for stretches > 5 hours?
its not about being somewhere without an outlet. its having to find one and plug it in. Go to starbucks, a friends or the airport? now you have to find a seat thats next to a wall. Its a hassle that could be avoided. The only time my laptop should be charging is at night when i'm sleeping.
I can understand such a need for, say, photojournalists, or war correspondents, nature professionals and the like, but what is the use case for the ordinary guy?
Or do you consider working on the laptop on the beach or in the woods for stretches > 5 hours?