Apple can probably cut production costs by shipping underpowered supplies, because 99% of their clientelle won't use their machines hard enough for it to be an issue.
Is there the same problem with MacBooks?
There are many other things that can cause a charge to remain at 97-99% rather than 100%, most notably the condition of the battery. In fact, although my MacBook has been idling on the AC adaptor for the last 5 hours, the battery hasn't shifted from 96%.
Got a link? Quite an interesting topic!
MB & MBP.
Battery health doesn't affect charge %.
Battery starts recharging only when its at 95 % and lower - to prevent unnecessary cycles due to slight battery drain under certain circumstances.
http://docs.info.apple.com/article.html?artnum=88344
http://docs.info.apple.com/article.html?artnum=305336
Do you believe me now . . . ?