-as of [12 AUGUST 2024]-

-2019 [16-INCH] MACBOOK–

2,775 mAh battery

*lithium ion*

(‘mAh’ –> ‘milli-amperes per hour’)

*fast charge* –>

*takes ~2 hours to charge from 0% to 80%*

*trickle charge* –>

*takes ~2 hours to charge from 80% to 100%
(4x slower than ‘fast charge’)

*according to ‘system information’…*

*formerly known as ‘energy saver’*

*checkbox 1* –>

“AUTOMATIC GRAPHICS SWITCHING”
(your computer will automatically switch between ‘graphics modes’ for better ‘battery life’)

*2 TABS*

1 – “BATTERY”

2 TIME SLIDERS* –>

‘COMPUTER SLEEP’

‘DISPLAY SLEEP’

(left is ‘1 minute’)

(right is ‘never’)

(max time length is ‘3 hours’)
(you can slide by ‘minute’)
(’15-minute mark’ + ‘1 hour mark’ are labeled)

(there are 14 un-labeled dashes that aren’t helpful)

2 checkboxes underneath sliders…

*PUT ‘HARD DISKS’ TO ‘SLEEP’ WHEN POSSIBLE*

*SLIGHTLY DIM THE DISPLAY WHILE ON ‘BATTERY POWER’*

“service recommended”
“battery is charged”

support.apple.com /en-us/HT204054

Get help with your Mac notebook battery

10-12 minutes

Learn how to

optimize the life of the battery in your Mac notebook,

fix battery issues,

and get service

Optimize your battery life

Check battery health

Diagnose battery issues

Optimize your battery life

Your notebook battery life depends on your computer’s configuration and how you’re using the computer.

Here are some settings and steps you can take to get the most from your computer’s battery.

Check Battery preferences

The Battery pane in System Preferences has settings to help improve the battery life on your Mac notebook.

To view Battery settings, choose Apple menu  > System Preferences, click Battery or Energy Saver, then select the Battery tab.

Battery System Preferences window battery options

The example above is from macOS Big Sur.

Some features such as Automatic graphic switching and Power Nap aren’t available on all Mac notebooks or versions of macOS.

For maximum battery life, use the following settings…

Turn on “Slightly dim the display while on battery power”.

This setting lets your Mac adjust the display brightness to 75% when you unplug the computer from power.

Turn off “Enable Power Nap while on battery power”.

This setting prevents your Mac from checking for mail or other iCloud updates during sleep which improves standby time.

Turn on “Optimize video streaming while on battery”.

This setting lets high-dynamic-range (HDR) video play in standard dynamic range (SDR) while on battery power, which uses less energy.

Turn on “Automatic graphics switching”.

This setting lets MacBook Pro models with multiple graphics processors automatically switch between them to maximize battery life.

Adjust display brightness

By default, your display automatically adjusts the brightness to conserve power.

If you turn off automatic brightness, you should turn it back on later to preserve battery life.

To set the brightness automatically, choose Apple menu  > System Preferences, click Displays, then turn on ”Automatically adjust brightness”

Learn how to adjust your brightness manually.

Check battery health

You can check the health of your battery in Battery preferences or the Battery status menu:

In macOS Big Sur, choose Apple menu  > System Preferences, click Battery, select Battery in the sidebar, then click Battery Health.

In macOS Catalina or earlier, hold the Option key and click the battery icon in the menu bar to reveal the battery status menu

Check the condition of your Mac computer’s battery

You can check whether the battery in your portable Mac is functioning normally and approximately how much charge it can hold.

To view your battery’s condition, press and hold the Option key and click the battery icon in the menu bar.

You may see any of the following conditions:

Normal: The battery is functioning normally.

Service Recommended: The battery is performing normally, but its ability to hold a charge is less than when it was new. You may want to consider replacing the battery.Note: The battery may also not be functioning normally, and you may or may not notice a change in its behavior or the amount of charge it holds. Take your computer in for service. You can continue to use your battery before it’s checked without harming your computer.

See also

What is the Battery Status menu on Mac?

Find how to service or repair your MacApple Support article:

About battery health management in Mac notebooks

Was this help page useful? Send feedback.

You’ll see one of the following status indicators:

Normal

The battery is functioning normally.

Service Recommended:

The battery’s ability to hold charge is less than when it was new or it isn’t functioning normally.

You can safely continue to use your Mac but you should take it to an Apple Store or Apple-authorized service provider to get your battery evaluated.

To get service on your battery, contact Apple

In earlier versions of macOS, the battery status might display

Replace Soon,

Replace Now,

or Service Battery

if your battery holds less of a charge than when it was new or needs to be serviced.

If the battery’s lowered charging capacity is affecting your experience, get your battery evaluated at an Apple Store or Apple-authorized service provider.

While some third-party apps report on battery health conditions, the data reported by these apps may be inaccurate and isn’t a conclusive indication of actual diminished system run time.

It’s best to rely on the information reported in the battery health menu, described above.

Diagnose battery issues

Learn how to

check your hardware,

identify apps or features contributing to high energy use,

and resolve charging issues

Run diagnostics

A great place to start when troubleshooting battery issues is the built-in diagnostics that are available on your Mac notebook.

Learn how to use Apple Diagnostics on your Mac.

If you don’t find any issues with Apple Diagnostics, read on for more information about troubleshooting your battery.

Check the battery status menu

The battery status menu shows you how much charge your battery has and whether it’s currently charging.

This menu is at the right side of the menu bar:

macOS Big Sur menu bar with battery menu open

The battery status menu also tells you if your display or any apps are using significant energy.

Also consider closing any apps that are listed to save battery power.

If you use optimized battery charging in macOS Big Sur, you’ll see additional information when your Mac is connected to power,

…such as whether charging is paused or when your battery will be fully charged.

If charging is paused and you need to have your Mac fully charged sooner, click Charge To Full Now.

Resolve charging issues

Get help with other issues such as if your Mac won’t recognize a ‘power adapter’ or charge to 100%.

If your Mac isn’t charging

If your Mac won’t charge to 100%

If you use optimized battery charging in macOS Big Sur or use macOS Catalina or earlier, occasionally the battery might not show a full charge (100%) in macOS, even after the ‘power adapter’ has been connected for an extended period of time.

This behavior is normal and helps prolong the overall life of the battery.

Servicing the battery in your Mac notebook

MacBook, MacBook Air, and MacBook Pro computers with built-in batteries should only have their batteries replaced by an Apple Authorized Service Provider or at an Apple Store.

Attempż cing to replace a built-in battery yourself could damage your equipment, and such damage is not covered by warranty.

Some older Mac notebooks have removable batteries that you can replace yourself. Contact an Apple Authorized Service Provider or an Apple Store for assistance servicing a removable battery.

Battery warranty information

Your Apple One Year Limited Warranty includes replacement coverage for a defective battery.

If you purchased an AppleCare Protection Plan for your Mac notebook, Apple will replace the notebook battery at no charge if it retains less than 80 percent of its original capacity.

If you don’t have coverage, you can have the battery replaced for a fee.

Understanding batteries in Mac notebooks

MacBook, MacBook Air, and MacBook Pro computers come with lithium polymer batteries to provide maximum battery life in a compact space

To understand battery technology and battery life, it’s good to know common battery terminology…

Cycle count:

Batteries are expected to function for a certain number of cycles.

This number represents the sum of total and partial discharge cycles throughout the life of the battery.

You can see the cycle count limit for your computer by reviewing Determine battery cycle count for Mac notebooks

Full charge capacity:

Measured in mAH (milliampere-hours), this refers to the amount of power the battery is capable of containing, less the energy required to shut down the device.

This number lowers as the battery becomes depleted with usage and age

Remaining charge capacity:

This number represents the current amount of power left in the battery as measured in mAh (milliampere-hours).

Using the computer when not connected to AC power will cause this number to lower as power is depleted from the battery

Defective

Batteries are considered defective when they stop working due to a defect in materials or workmanship, or due to a manufacturing defect.

Defective batteries are covered under Apple’s one-year limited warranty and extended-service contracts

Load

The amount of activity being performed by a task or tasks.

Certain power-intensive processes place a heavier load on the battery and result in a much-reduced runtime per charge

Learn more

Information about products not manufactured by Apple, or independent websites not controlled or tested by Apple, is provided without recommendation or endorsement.

Apple assumes no responsibility with regard to the selection, performance, or use of third-party websites or products.

Apple makes no representations regarding third-party website accuracy or reliability.

Contact the vendor for additional information.

Published Date: December 08, 2020

2 – “POWER ADAPTER”

2 TIME SLIDERS* –>

‘COMPUTER SLEEP’

‘DISPLAY SLEEP’

(same as battery sliders)

(if you select ‘never’ on ‘display sleep’, you will be warned…)

“never letting your display go to sleep may shorten its life”

(there are 2 checkboxes for ‘power adapter tab’…)

*put hard disks to sleep when possible*

*wake for network access*

(there is a button for ‘RESTORE DEFAULTS” for each tab)
(it will be greyed out if they still have ‘default settings’)

(hitting these buttons set all time sliders to ‘never’)
(is that ‘default’?)
(why would ‘default setting’ select for a value that comes with a ‘warning’?)

*checkbox at bottom left* –>

“SHOW BATTERY STATUS IN MENU BAR”

(click on the battery icon to get same “service recommended” warning)

(when connected to power, there will be 2 greyed out dropdown selections…)

“BATTERY IS CHARGED”

“POWER SOURCE” –> “POWER ADAPTER”

(there will be a list of open apps using ‘significant energy’…)

“GOOGLE CHROME”

“ADOBE PREMIERE PRO 2020”

(there is option to ‘show percentage’ (of battery charge) in the menu bar)

(there is option to ‘open energy saver preferences’)

there is also a “SCHEDULE” button

Schedule your Mac to start up, shut down, or sleep

Schedule specific times for your Mac to start up, shut down, go to sleep, or wake from sleep.

You might do this if you want to be sure your Mac turns off when you aren’t working and turns on before you come to work.

On your Mac, choose Apple menu > System Preferences, then click Energy Saver.

Open Energy Saver preferences for me

Click Schedule in the bottom-right corner, then select the options you want to use.

Schedule a startup or wake time for your Mac:

Select the “Start up or wake” checkbox.

Choose a day or group of days from the pop-up menu, then enter a time.

Schedule a sleep, restart, or shutdown time for your Mac:

Select the bottom checkbox and choose the appropriate option from the pop-up menu on the left.

Choose a day or group of days from the pop-up menu on the right, then enter a time.

Your Mac must be awake and you must be logged in for it to shut down at the scheduled time.

If you are not logged in or your Mac is in sleep, it won’t shut down.

Note:

If you have any documents open with unsaved changes, your Mac might not go to sleep or shut down when scheduled.

(‘scheduled start-ups’ will only occur when your mac is connected to a power source)

Use Energy Saver System Preferences to set options that control your computer’s energy use.

If you have a portable Mac, these options also help you extend your battery’s life.

As an ENERGY STAR® partner, Apple has determined that standard configurations of your Mac meet the ENERGY STAR® guidelines for energy efficiency.

For more information about ENERGY STAR, see the ENERGY STAR website

Important:

The table below lists all of the options available in the Energy Saver pane of System Preferences.

Because the features of the computer you’re using determine the options shown, you may not see all the options listed below.

To open the pane, choose Apple menu > System Preferences, then click Energy Saver.

Open Energy Saver preferences for me

Battery, Power Adapter, and UPS

Click Battery, Power Adapter, or UPS, then select energy-saving options for that power source.

Your Mac will use those options when it’s getting power from that source.

You see the Battery button only if you have a portable Mac.

You see the UPS button only if your Mac is connected to an uninterruptible power source

Enable Power Nap while on battery power Enable Power Nap while plugged into a power adapter

Permits your computer to check for email, calendar, and other iCloud updates while sleeping.

When your Mac is plugged into a power adapter, Power Nap can also do ‘Time Machine backups’

Option	Description

Automatic graphics switching	To extend the life of your battery, set your Mac to automatically switch between graphics modes.
“Computer sleep” and “Display sleep” sliders, or “Turn display off after” slider	Drag the slider to set the amount of time your computer or display should wait before going to sleep.
Put hard disks to sleep when possible	Put the computer’s hard disk to sleep whenever it’s inactive.
Wake for network access	Users can access your computer’s shared resources, such as shared printers or Music playlists, even when your computer is in sleep mode.
Slightly dim the display while on battery power	Reduce the brightness of the display while on battery power.
Optimize video streaming while on battery power

Allow power button to put computer to sleep	Allows you to press the power button to put your computer to sleep.
Prevent computer from sleeping automatically when the display is off	Prevents the computer from going to sleep when the display sleeps.
Start up automatically after a power failure	Start up your Mac after a power interruption.
Show battery status in menu bar	Shows the battery icon in the menu bar. The battery icon shows when your portable Mac is connected to a power supply and the battery is charging , or shows the battery’s charge level .
Battery Health	Displays the condition of the battery of your Mac notebook and provides an option to manage the battery.Battery condition: Displays either Normal or Service Recommended.Battery health management: Optimizes the battery’s lifespan.
Schedule	Set a daily schedule for putting your Mac to sleep or turning it off and on.

*👨‍🔬🕵️‍♀️🙇‍♀️*SKETCHES*🙇‍♂️👩‍🔬🕵️‍♂️*

👈👈👈☜*“SYSTEM PREFERENCES”* ☞ 👉👉👉
*macOS*

💕💝💖💓🖤💙🖤💙🖤💙🖤❤️💚💛🧡❣️💞💔💘❣️🧡💛💚❤️🖤💜🖤💙🖤💙🖤💗💖💝💘

*🌈✨ *TABLE OF CONTENTS* ✨🌷*

🔥🔥🔥🔥🔥🔥🔥*we won the war* 🔥🔥🔥🔥🔥🔥🔥