[mavhc]

Phones lie about being at 95-100% charged, because it's bad to keep charging them when at 100%, it stops, waits for it to go down over hours, and charges again.

But then people complain it's not charged to 100% even though they left it charging all night, and because it's easier to lie to people than teach them stuff, they lie.

[chopin]

Or you just market your 1000 mAh battery as 950 mAh battery. But, uhhmm, honesty and marketing...

If you can't charge the battery to 1000 mAh, then state so.

[fomine3]

Note that Apple doesn't specify battery capacity spec on iPhone.

[mavhc]

You can charge it to that, but you don't want to keep it there, will cause the battery to age faster