My old 2008 Unibody Macbook had a removable battery and the unit would operate even without the battery inserted. This means there was a direct connection to the logic board.
My newer MacBook Pro's appear to be designed differently:
1. when the battery is dead and I plug in the charger, the unit takes time to even turn on, then after signing in the unit is very sluggish, which improves only with some time.
2. when a sudden heavy task is running, the battery level may drop a little, even while the charger is connected
Based on this, I get a strong indication that the logic board draws power from the battery only. And that the battery - in turn - draws power from the charger.
In the situation when the maximum battery charge has been reached and the charger is still connected, and if the above is indeed correct, the battery is continuously discharging - charging - discharging "micro" amounts (100% - 99% - 100% and so on).
Can anyone confirm this, preferably with some sort of documentation I can research online.
Thanks.
My newer MacBook Pro's appear to be designed differently:
1. when the battery is dead and I plug in the charger, the unit takes time to even turn on, then after signing in the unit is very sluggish, which improves only with some time.
2. when a sudden heavy task is running, the battery level may drop a little, even while the charger is connected
Based on this, I get a strong indication that the logic board draws power from the battery only. And that the battery - in turn - draws power from the charger.
In the situation when the maximum battery charge has been reached and the charger is still connected, and if the above is indeed correct, the battery is continuously discharging - charging - discharging "micro" amounts (100% - 99% - 100% and so on).
Can anyone confirm this, preferably with some sort of documentation I can research online.
Thanks.
