Apple laptop battery maintenance rules

Q: How to maintain an Apple laptop battery

 

Apple is a standard compound lithium-ion battery (lithium battery). The physical structure of lithium battery is high power and has no memory effect. Any lithium battery must use a power battery management controller (PMU) to implement regular and effective charging control. Therefore, the lithium battery must use the original charging adapter to achieve effective and safe applications.

Since lithium battery has no memory effect, that is to say, it can be charged without consuming the power capacity. Lithium Battery is at any power level and suitable for charging, if you don't want to fill it up, you just need to wait until sleep and shut down automatically. Lithium Battery generally calculates the life cycle based on the charging cycle. The theoretical cycle is 500 (+/-15%), and the charge is calculated once and again, consuming 30% of the power and then recharging. the PMU is not counted in the previous cycle.

Apple's power adapter and Apple's PMU/SMC are smart. Because lithium battery cannot consume 100% of its power, PMU/SMC constantly monitors the power level of the lithium battery, when the power consumption reaches 5%, the system activates the sleep state and forces the power off to ensure that the lithium battery will not be exhausted. At this moment, you should connect to the mains for charging. The lithium battery power adapter works with the PMU/SMC battery management controller to achieve 70% fast charge when the charging is restored, and 70% will achieve slow charge when the charging is in place, 95% of the power is charged until the power is fully charged to 100%.

Therefore, the original charge adapter is often connected, which is 200% OK. When connected to mains, if the lithium battery capacity is less than 95%, the charging adapter will automatically perform a drip charging to 100% and then automatically cut off the charge.

The removal of lithium battery is not needed, it is an ignorance of the practice, the loss of the original intention of the mobility, lithium battery is also because of long-term storage and failure, it is impossible to implement re-charging.

Using Apple's lithium battery, you don't need to be too persistent. Even if you want to use it, you don't need to calculate the charging cycle every day. You have also seen some brand new DOA lithium batteries and some 700-cycle lithium batteries. In short, whether it is charging or not, connect the lithium battery of this book to your apple book and continue to let it play its due functions.

 

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Removing the battery is not necessary. It is not wise to connect only the power adapter to use it. Why? This is because new users tend to purchase Intel-Mac models, which when the battery is removed, connect only the power adapter to power the current database, the computer will automatically reduce the speed of the processor, so that the power consumption of the computer will be reduced, to prevent the adapter from being independently powered, when the system resources need more power but the power is insufficient, the computer will automatically shut down. This automatic shutdown is the automatic protection function of the system SMC. If you think that removing the battery can make the battery more durable, but as the axe said, it is actually impossible to achieve the purpose of durability, but may shorten the battery life. In addition, if you have been working for a long time when the processor is downgraded, you have purchased a 2 x GHz speed computer, but you have been using a 1 x GHz computer for a long time, is this what the wise man does? Of course it is unwise. For more information about how to remove a battery from a MacBook/MacBook Pro and use a power adapter separately, the processor automatically reduces the frequency. For more information, see Apple's Technical Documentation No. 305,336th: MacBook and MacBook Pro: mac reduces processor speed when battery is removed while operating from an A/C adaptor. Note that Apple strongly recommends this: Important: It is strongly recommended that you do not use your MacBook or MacBook Pro while the battery is removed. accidently bumping the/C adaptor cocould disconnect power and shutdown the computer. any information that was not saved on your computer wocould be lost. Repeat it again: Accidently bumping the/C adaptor cocould disconnect power and shutdown the computer. Any information that was not saved on your computer wocould be lost.