For the lifetime of a battery, is it better to shut down or sleep an Mac book Pro? Could anyone be able to explicit a full answer to this question?
MacBook Pro Battery Tips – Choose Between Shut Down or Sleep for Power Optimization
batterymacmacbook promacospower
Best Answer
There are two factors that govern the life of a battery:
The biggest factor is age. Math Finds Top Culprit as Lithium Batteries Age
The next is cycle count. A complete discharge and recharge is one cycle. A 20% discharge 5 times is one cycle, a 5% discharge 20 times is one cycle.
Whether that cycle takes a half day, a full day or a week all depends on how you use it; sleeping will put a very, small draw on your battery versus being off but the difference is almost negligible - I am assuming that you are not sleeping your MacBook for weeks at a time.
Even when you keep your MBP plugged in, you are reducing the per day cycle count; however you are not eliminating it.
Why does cycle count matter? From the article again...
Bottom line
It's doesn't matter. You can expect to replace your battery somewhere between year 3 and 4. Can you get longer? Yes. Can it be shorter? Yes. It's tough to know exactly when, but choosing "sleep" over "power off" isn't going to make a big difference.