I would really like to see some Apple documentation that supports this, as it:when they hit 100% and they let the computer run on battery power until it hits 80% or so. Then it resumes charging.
1) Is not the way I think it works, and
2) Sounds like a really good way to kill a battery
Ditto. What makes you believe that Apple runs the battery down to 80% and then charges it back up again?cycle the charge between 80% and 100% spreading the load around all the cells to prolong battery life as long as possible.