Good source of revenue for journos, but of no consequence whatsoever to the rest of us.
If you ever life out a battery set you've kept the machine right through obsolescence until it is positively obsolete and incapable of coping with the latest internet offerings.
Interestingly, my latest purchase charges in a couple of hours and then the battery lasts eight hours. When the battery icon gets really low there is still two hours left. Wow, I can recall those long lost days when two hours was full charge with a brand new battery.
Don't worry.