Then, irony of ironies, people put their ultra-thin devices in cases to protect them, carry multiple batteries for them, or external charging bricks, and my favorite... the oversized extended battery.
Throws hands up in air
Throws hands up in air
I've only used my battery pack four or five times in the year and a half I've had my 6s. Most of the time I'm not far away from a plug - either at home, in my car, at work, etc.
But when I travel, a slightly bigger battery wouldn't be enough. I would want twice the battery life - something I can get by using a battery pack - but I probably wouldn't get from a slightly larger iPhone.
If you have to optimize, why optimize for the edge cases instead of the most popular case and give options for those times people need it.
I can understand if someone says they want even lighter.
Since getting my Pixel XL I have a noticed I rely on external battery packs less as I often have access to a power socket for at least an hour or two when I travel.
I can count on running off the battery all day as long as I can get it plugged in while I fetch a sandwich for lunch.
If I plug mine into a 2 amp usb A charger it says that it is not charging, but does that mean it is drawing zero watts, or only that it is only drawing 10 watts? It would be nice to charge it overnight if only a phone charger happens to be around, or even just slow down the discharge rate while using the laptop.
Forcing user to learn all kinds of magic rules for how to "treat their battery" seems very old-fashioned and strange.
What you have to consider with fast charging is that it degrades the batteries faster and produces more heat.
One of the things that has changed my life for the better is switching entirely to devices that can use any USB power brick or USB charger in a pinch. This includes my cameras, tablets, phones, audio gear, and so on. The only remaining outlier is laptops.
As for battery packs, I have multiple devices, but I carry one battery pack that can charge all of them as needed. My phone is much lighter in my pocket for not having to have a larger battery (that I don't usually need), my ipad is easier to handle, etc.