If you rarely use the battery, then Apple recommends completely discharging the battery and charging it again at least once a month. If you use your notebook frequently on the battery and plug it in to “top off” the battery, then a full discharge cycle is required less often.
In short, you can use the battery any way you want to. Once it is charged to 100%, it will not charge while plugged in. And, it is ok to use - but, do use it unplugged/using the battery because it is best for the battery to be used.
The main reason for letting your Mac sleep instead of shutting it down is that your Mac can't perform maintenance tasks during the night if you shut it down. macOS does a lot every night while your Mac isn't being used and it is “sleeping”. Apple actually has a term for this sleep mode — “Power Nap”.
With these battery-saving tips, you won't have to worry as much about your Mac running out of juice when you need it most.
- Turn Off Bluetooth and Wi-Fi.
- Adjust Screen Brightness.
- Tweak Energy Saver preferences.
- Quit runaway applications.
- Turn off backlit keyboard.
- Turn off Time Machine.
- Enable private browsing.
Beside, it can run the maintenance script on time. The only time when you should consider shutting down is when you're not going to use the MacBook for more than 36 hours. Apple recommends to discharge the battery around ±50% before shutting them down.
The battery in all MacBook Air models is "integrated," which means it is not designed to be replaced by end-users, and it certainly is not easily "swappable" like the battery in "pre-Unibody" MacBook and MacBook Pro models. The MacBook Air battery is replaceable, though.
The 2017 [Touch Bar 13-Inch] MacBook Pro lasted 8 hours and 40 minutes on the Laptop Mag Battery Test, which is longer than the 8:24 average for ultraportables and close to the time from last year's model (8:48). . .
You battery might drain fast when you're working on your Mac because, for one reason or another, you're running one-too-many apps at the same time. It's advisable to run your Mac for much of the time without functions and settings like active Bluetooth, glistening screen brightness, and keyboard light.
You do not need to disconnect your MacBook Pro's battery. Your battery will stop charging once it is full. To get the most out of your MacBook Pro's battery, follow the Notebook Battery advice from Apple: unplug and use your battery until empty about once a month, then charge back up to full.
An overnight charge will not hurt your MacBook, but if you normally operate it with the power cord plugged in, your battery may lose the ability to last as long as it should per charge.
If your MacBook is out of warranty when you need to replace the battery (which it most likely will be), Apple can replace it for $129 to $199 depending on the model. In most cases you are better off getting a genuine replacement through Apple, or through a trusted third party repair shop.
You Can't Overcharge the Laptop's Battery
There are a lot of battery myths out there. There's no way to “overcharge” these batteries. When you get to 100% charge and leave your laptop plugged in, the charger will stop charging the battery. There's no risk of damaging the battery by charging it over its capacity.For all other eligible iPhones — that includes the iPhone SE, iPhone 6 and later — the fee will rise from the current $29 to $49. Before Apple's battery fiasco kicked off at the end of 2017, a new iPhone battery cost $79. If the iPhone is in warranty or part of AppleCare+, the battery can be replaced free of charge.
8 tips for improving battery life on your MacBook
- Show battery percentage.
- Check battery condition.
- Dim the display.
- Keep current with software updates.
- Kill keyboard backlights when not needed.
- Turn off Bluetooth.
- Quit applications you are no longer using.
- Disconnect unused dongles.
Connect your MacBook Pro to a power outlet using the included USB-C Charge Cable and 61W USB-C Power Adapter. You can charge your MacBook Pro using either of the Thunderbolt 3 ports on your computer. The battery charges more quickly when the computer is off or in sleep. Check the battery's charge.
Laptops are only as good as their batteries, however, and proper care of your battery is essential to making sure it retains a long life and charge. Leaving your laptop plugged in constantly is not bad for your battery, but you will need to be careful of other factors, such as heat, to prevent your battery from damage.
The short form is this: The battery cannot be over charged. Do not drain the battery 100%. While you cannot overcharge the battery it isn't good to keep it plugged in all the time. At the very least unplug it and use the battery at least once or twice a month.
Connect your MacBook Air to a power outlet using the included USB-C Charge Cable and 30W USB-C Power Adapter. You can charge your MacBook Air using either of the Thunderbolt 3 ports on your computer. The battery charges more quickly when the computer is off or in sleep. Check the battery's charge.
About battery cycles
- Hold the Option key and click the Apple (?) menu. Choose System Information.
- Under the Hardware section of the System Information window, select Power. The current cycle count is listed under the Battery Information section.
Older Macbooks Have Lights on the Charging Cable
If the light is orange, you're charging. If it's green, your battery is full, and you're running off the power adapter. Even if it doesn't turn on, it should still have the light if the problem isn't with the battery.Apple does not recommend leaving your MacBook plugged in all the time. Furthermore, Apple even recommends charging and discharging your MacBook's battery at least once per month — it even has a calendar event to remind you. Restore Energy Saver defaults.
If you mean “can you charge macbook without magsafe charger”, sure yes you can. But you still need some kind of charger to charge the lithium ion batteries. Just locate positive and negative terminal on the battery, and hook it up to lithium ion battery charger with same voltage rating.
With no battery, the MacBook will turn its power consumption down so that it can guarantee to always have enough power, because otherwise you would have instant crashes at the wrong times. So unless your battery is swollen, leave it in, even if it only has ten minutes charge left.
Well, Apple does not recommend leaving your portable plugged in all the time, as for a lithium-based battery, it's important to keep the electrons in it moving occasionally. Adaptive Charging reduces the wear and tear on the battery giving it a lifespan of up to 5 years.
If the battery in your MacBook, MacBook Air, or MacBook Pro is fully drained of power, the battery will put itself into a low power state to preserve its ability to charge in the future. Connect your Mac Notebook to AC power and allow it to charge for at least five minutes.
Apple MacBook battery life tips: Make your laptop last longer
- A quick fix: Turn down the screen brightness.
- Turn off keyboard backlight.
- Turn off Bluetooth and Wi-Fi.
- Tweak your Energy Saver settings.
- Check how power hungry certain apps are.
- Quit unused apps.
- Update your software and apps.
- Play your movies full screen.
So basically you most SHOULD shut down when not using it for some time. You don't want the Macbook to be for a long time on and in sleep mode. leaving your Macbook both ON charge AND in sleep mode is bad on the battery. Being merely in sleep is another matter, which is fine.
The official Apple battery replacement service for the MacBook Air is priced at $129, and is well worth it. It may cost a bit more than buying a third party battery, but it doesn't void your warranty, Apple technicians do all the work and Apple also disposes of the old battery for you.
