Nothing is more frustrating than using your MacBook Pro outside the home or the office only to find out that your battery is fast draining because you actually overused or misused it. What if you have a presentation to do or an emergency email to send out and the battery of your MacBook Pro just died down? What are you going to do? Remember that there will not always be a power socket nearby or an Apple store around the corner where you can get a replacement battery. So it is extremely important to learn how to maximize the “battery life” and the “battery lifespan” of your MacBook Pro.
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What is “Battery life and lifespan” exactly?
“Battery life” is the amount of time your device runs before it needs to be recharged. “Battery lifespan” is the amount of time your battery lasts until it needs to be replaced. Although you can always have a replacement for your damaged or dead MacBook Pro battery from Apple stores, it is still best to preserve and prolong its life to avoid any more hassles. Compared with traditional battery technology, lithium-ion battery on MacBook Pro charges faster, lasts longer, and has a higher power density in a lighter package. As long as you know a little about how to save it, the battery can work much better for you.
Apple lithium-ion batteries work in charge cycles. You complete one charge cycle when you’ve used an amount that equals 100% of your battery’s capacity. But there is no need to let it discharge to 0% before recharging. For instance, you might use 75% of your battery’s capacity one day, then recharge it fully overnight. If you use 25% the next day, you will have discharged a total of 100%, and the two days will add up to one charge cycle. It could take several days to complete a cycle. The capacity of any type of battery will diminish after a certain amount of recharging. With lithium-ion batteries on MacBook Pro, the capacity diminishes slightly with each complete charge cycle. Apple lithium-ion batteries are designed to hold at least 80% of their original capacity for a high number of charge cycles. So the best way to save battery on MacBook Pro is to use power adapter at home or at office, while use battery outdoors or in traveling occasionally.
How to save battery on MacBook Pro indeed?
In the course of using, you should optimize your settings to maximize the life of your battery. In practice, your MacBook Pro knows whether it is plugged in and will run accordingly. When using battery power, it dims the screen and uses battery power sparingly. If you change the settings to the best performance, your battery will drain more quickly. For instance, when watching a video at night, you may not need full brightness if the room lights are off.
Besides, WIFI consumes power, even if you are not using it to connect to a network. So you can turn it off in the WIFI status menu. Disconnect peripherals and quit applications not in use. Eject an SD card if you’re not currently accessing it. Meanwhile, make sure your MacBook Pro is plugged in when you’re using it to charge other devices via USB. Otherwise those devices may drain the battery on your MacBook Pro faster than normal.
However, if you don’t use your MacBook Pro for a long time, you’d better discharge and recharge the battery once per month at least, because for the battery, what matters most is to make sure the flow of Li-ion. And in storing the battery, you should keep it under room temperature and away from heat to prolong its life.
In addition, you should also follow these steps to calibrate your battery at intervals:
Firstly, plug in the power adapter and fully charge your battery until the LED on the power adapter plug changes to green and the onscreen meter in the menu bar indicates that the battery is fully charged. Then allow the battery to rest in the fully charged state for at least 2 hours. You may use your computer during this time as long as the adapter is plugged in.
Secondly, disconnect the power adapter while the computer is still on and start running the computer to consume battery power. When your battery gets low, the low battery warning dialog will appear on the screen. At this point, save your work and continue to use your computer. When the battery gets very low, the computer will automatically go to sleep.
Finally, turn off the computer or allow it to sleep for five hours or more. Then connect the power adapter and leave it charged until the battery is fully charged again.
All rechargeable batteries have a limited lifespan, but as long as you keep in mind the simple but important safety tips above, you can easily prolong the life and lifespan of your MacBook Pro battery.
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