âBattery lifeâ is the amount of time your device runs before it needs to be
recharged. âBattery lifespanâ is the amount of time your battery lasts
until it needs to be replaced. Maximize both and youâll get the most out of
your Apple devices, no matter which ones you own.
General Performance Tips
Update to the latest software.
Apple software updates often include advanced energy-saving technologies, so
always make sure your device is using the latest version of iOS, macOS, or
watchOS.
Avoid extreme ambient temperatures.
Your device is designed to perform well in a wide range of ambient
temperatures, with 62° to 72° F (16° to 22° C) as the ideal comfort zone.
Itâs especially important to avoid exposing your device to ambient
temperatures higher than 95° F (35° C), which can permanently damage battery
capacity. That is, your battery wonât power your device as long on a given
charge. Charging the device in high ambient temperatures can damage it further.
Software may limit charging above 80% when the recommended battery temperatures
are exceeded. Even storing a battery in a hot environment can damage it
irreversibly. When using your device in a very cold environment, you may notice
a decrease in battery life, but this condition is temporary. Once the
batteryâs temperature returns to its normal operating range, its performance
will return to normal as well.
iPhone, iPad, iPod, and Apple Watch Comfort Zone
32° F
95° F
Too ColdRoom TemperatureToo Hot
iPhone, iPad, iPod, and Apple Watch work best at 32° to 95° F (0° to 35° C)
ambient temperatures. Storage temperature: -4° to 113° F (-20° to 45° C).
MacBook Comfort Zone
50° F
95° F
Too ColdRoom TemperatureToo Hot
MacBook works best at 50° to 95° F (10° to 35° C) ambient temperatures.
Storage temperature: -4° to 113° F (-20° to 45° C).
Remove certain cases during charging.
Charging your device when itâs inside certain styles of cases may generate
excess heat, which can affect battery capacity. If you notice that your device
gets hot when you charge it, take it out of its case first. For Apple Watch
Edition models, make sure the cover of the magnetic charging case is off.
Store it half-charged when you store it long term.
If you want to store your device long term, two key factors will affect the
overall health of your battery: the environmental temperature and the
percentage of charge on the battery when itâs powered down for storage.
Therefore, we recommend the following:
* Do not fully charge or fully discharge your deviceâs battery â
charge it to around 50%. If you store a device when its battery is fully
discharged, the battery could fall into a deep discharge state, which renders
it incapable of holding a charge. Conversely, if you store it fully charged for
an extended period of time, the battery may lose some capacity, leading to
shorter battery life.
* Power down the device to avoid additional battery use.
* Place your device in a cool, moisture-free environment thatâs less
than 90° F (32° C).
* If you plan to store your device for longer than six months, charge
it to 50% every six months.
Depending on how long you store your device, it may be in a low-battery state
when you remove it from long-term storage. After itâs removed from storage,
it may require 20 minutes of charging with the original adapter before you can
use it.
Tips for iPhone, iPad, and iPod touch
Update to the latest software.
Always make sure your device is using the latest version of iOS.
* If an update is available, you can plug your device into a power
source and update wirelessly or plug it into your computer and update with the
latest version of iTunes.
<https://support.apple.com/HT204204> Learn more about updating iOS
Optimize your settings.
There are two simple ways you can preserve battery life â no matter how you
use your device: adjust your screen brightness and use WiâFi.
Dim the screen or turn on Auto-Brightness to extend battery life.
* To dim, open Control Center and drag the Brightness slider to the
bottom.
* Auto-Brightness adjusts your screen to lighting conditions
automatically. To activate it, go to Settings > General > Accessibility >
Display Accommodations and set Auto-Brightness to On.
When you use your device to access data, a WiâFi connection uses less power
than a cellular network â so keep WiâFi on at all times. To turn on
WiâFi, go to Settings > WiâFi to access a WiâFi network.
Enable Low Power Mode.
Introduced with iOS 9, Low Power Mode is an easy way to extend the battery life
of your iPhone when it starts to get low. Your iPhone lets you know when your
battery level goes down to 20%, and again at 10%, and lets you turn on Low
Power Mode with one tap. Or you can enable it by going to Settings > Battery.
Low Power Mode reduces display brightness, optimizes device performance, and
minimizes system animations. Apps including Mail will not download content in
the background, and features like AirDrop, iCloud sync, and Continuity will be
disabled. You can still use key functions like making and receiving phone
calls, email, and messages, accessing the Internet, and more. And when your
phone charges up again, Low Power Mode automatically switches off.
View Battery Usage information
With iOS, you can easily manage your deviceâs battery life, because you can
see the proportion of your battery used by each app (unless the device is
charging). To view your usage, go to Settings > Battery.
Here are the messages you may see listed below the apps youâve been using:
Background Activity. This indicates that the battery was used by the app while
it was in the background â that is, while you were using another app.
* To improve battery life, you can turn off the feature that allows
apps to refresh in the background. Go to Settings > General > Background App
Refresh and select Wi-Fi, Wi-Fi & Cellular Data, or Off to turn off Background
App Refresh entirely.
* If the Mail app lists Background Activity, you can choose to fetch
data manually or increase the fetch interval. Go to Settings > Accounts &
Passwords > Fetch New Data.
Location and Background Location. This indicates that the app is using location
services.
* You can optimize your battery life by turning off Location Services
for the app. Turn off in Settings > Privacy > Location Services.
* In Location Services, you can see each app listed with its permission
setting. Apps that recently used location services have an indicator next to
the on/off switch.
Home & Lock Screen. This indicates that the Home screen or Lock screen was
displayed on your device. For example, the display was awakened by pressing the
Home button or by a notification.
* If an app frequently wakes your display with notifications, you can
turn off push notifications for the app in Settings > Notifications. Tap the
app and set Allow Notifications to Off.
No Cell Coverage and Low Signal. This indicates either that you are in a poor
cell coverage area and your iOS device is searching for a better signal or that
youâve used your device in low-signal conditions, which has affected your
battery life.
* You can optimize your battery life by turning on Airplane mode. Open
Control Center and tap the Airplane mode icon. Note that you cannot make or
receive calls while in Airplane mode.
Plug in and power on your computer to charge your device.
Make sure your computer is plugged in and powered on when youâre using it to
charge your iOS device via USB. If your device is connected to a computer
thatâs
turned off or is in sleep or standby mode, your deviceâs battery may drain.
Tips for Apple Watch
Update to the latest software.
Always make sure your Apple Watch is using the latest version of watchOS.
* To see if you need an update, open the Apple Watch app on your iPhone
and go to My Watch > General > Software Update.
* If an update is available, connect your iPhone to Wi-Fi, attach the
charger to your Apple Watch (make sure it has at least 50% charge), and update
wirelessly.
<https://support.apple.com/HT204641> Learn more about updating watchOS
Adjust your settings.
There are a few ways you can preserve battery life on your Apple Watch:
* During running and walking workouts, turn on Power Saving Mode to
disable the heart rate sensor. To do this, open the Apple Watch app on iPhone,
go to My Watch > Workout, and turn on Power Saving Mode. Note that when the
heart rate sensor is off, calorie burn calculations may not be as accurate.
* For longer workouts, you can choose to use a Bluetooth chest strap
instead of the built-in heart rate sensor. To pair the Bluetooth chest strap
with your watch, make sure the strap is in pairing mode, then open Settings on
Apple Watch, select Bluetooth, and choose from the list of Health Devices.
* If youâre very active with your hands and your watch display turns
on more than you think it should, you can prevent the display from turning on
every time you raise your wrist. Open Settings on Apple Watch, select General,
select Wake Screen, and turn Wake Screen on Wrist Raise off. When you want to
turn on the display, just tap it or press the Digital Crown.
* Disabling Bluetooth on your iPhone increases the battery drain on
your Apple Watch. For more power-efficient communication between the devices,
keep Bluetooth enabled on iPhone.
View Battery Usage information
To view your usage and standby information, open the Apple Watch app on iPhone
and go to My Watch > General > Usage.
Plug in and power on your computer to charge your Apple Watch.
If you want to charge from your computer, make sure it is plugged in and
powered on when youâre using it to charge your Apple Watch via USB. If your
Apple Watch is connected to a computer thatâs turned off or is in sleep or
standby mode, the Apple Watch battery may drain.
If your Apple Watch battery needs service, use Apple or an authorized service
provider.
Tips for iPod shuffle, iPod nano, and iPod classic
Update to the latest software.
Always make sure your iPod is using the latest version of Apple software. Put
your iPod in its dock or plug it into your computer, and iTunes will notify you
of available updates.
Optimize your settings.
Hold and pause. Set the Hold switch when youâre not using your iPod. This
will prevent iPod from accidentally waking up and using unnecessary power. If
youâre not listening to your iPod, pause it, or turn it off by pressing the
Play button for two seconds.
Equalizer (EQ). Adding EQ to playback increases use of your iPod processor,
since EQ isnât encoded in the song. Turn EQ off if you donât use it. If,
however, youâve added EQ to tracks in iTunes, youâll need to set EQ to
âflatâ in order to have the effect of âoff,â because iPod keeps your
iTunes settings intact.
Backlight. Setting the backlight to âalways onâ will significantly reduce
your battery life. Use the backlight only when necessary.
Plug in and power on your computer to charge your iPod.
Make sure your computer is plugged in and powered on when youâre using it to
charge your iPod via USB. If your iPod is connected to a computer thatâs
turned off or is in sleep or standby mode, the iPod battery may drain.
Tips for MacBook Air and MacBook Pro.
Update to the latest software.
Always make sure your MacBook is using the latest version of macOS. If youâre
connected to the Internet, macOS automatically checks for software updates
every week, but you still control when the updates are installed. To confirm
that youâre using the latest software, go to the Apple menu and choose
Software Update.
<https://support.apple.com/HT201541> Learn more about updating macOS
Optimize your settings.
Energy. The Energy Saver preference pane includes several settings that
determine power levels for your MacBook. Your MacBook knows when itâs plugged
in and runs accordingly. When using battery power, it dims the screen and uses
other components sparingly. If you change this setting to maximize performance,
your battery will drain more quickly.
Brightness. Dim the screen to the lowest comfortable level to achieve maximum
battery life. For instance, when watching a video on an airplane, you may not
need full brightness if the cabin lights are off.
Wi-Fi. Wi-Fi consumes power, even if you are not using it to connect to a
network. You can turn it off in the Wi-Fi status menu in the menu bar or in
Network preferences.
Applications and peripherals. Disconnect peripherals and quit applications not
in use. Eject an SD card if youâre not currently accessing it.
Plug in and power on your MacBook to charge other devices.
Make sure your MacBook is plugged in and powered on when youâre using it to
charge other devices via USB. Otherwise those devices may drain the battery in
your MacBook faster than normal. If another device is connected to your MacBook
when itâs turned off or in sleep or standby mode, the deviceâs battery may
drain.
Website:
https://www.apple.com/batteries/maximizing-performance/#watchtips
===========================================================
The fb-exchange mailing list
Manage account, subscribe or unsubscribe:
//www.freelists.org/list/fb-exchange
Archives: //www.freelists.org/archives/fb-exchange ;
Administrative contact: insight@xxxxxxxxxxxxxxxxxxxx
===========================================================
