Blackberry Passport Smartphone 10 3 3 User Guide

About wireless chargingSome BlackBerry devices support wireless charging. If your device supports wireless charging, you can charge your deviceby setting it on a supported charging mat instead of connecting your device to a charger.
There are two 
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IconDescriptionThe battery charge is low, and your wireless connectionsmight turn 
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View battery and usage stats for a specific app or service
1. On the home screen, swipe down from the top of the screen.
2.Tap   Settings  > App Manager  > Device Monitor .
3. Tap an app or service.
Close or delete apps from the Device Monitor screen If you notice that an open app is using a lot of battery power, device memory, or CPU resources, you can close it and end all
processes associated with the app. You can also delete some apps permanently from the Device Monitor screen. Some apps must be...

 
A solid green LED can indicate that your device is plugged into a charger and that charging is complete.
Using Battery Saving Mode
If your battery power level is draining, you can set up Battery Saving Mode to turn on automatically and help make your battery last longer when you need it most! When Battery Saving Mode is turned on, your device automatically adjusts
various settings to help save battery power. If you need to save more battery power, you can also adjust additional settings.
For example,...

How can I extend battery life?
Battery life varies depending on how you use your BlackBerry device. To help battery power last longer, here are some considerations:
Dim the screen
Prolong battery life by changing your device settings to dim the screen. Do any of the following:

BlackBerry and environmental sustainabilityBlackBerry is committed to reducing the environmental impact of BlackBerry products. To learn more about the
sustainability 
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Monitor your wireless data usage
You can check how much data you have used over your mobile network or your Wi-Fi network. You can also monitor which apps and services are using the most data, and you can close some apps to help reduce your data usage or improve the
device performance. Depending on your wireless service provider, this feature might not be available.
1. On the home screen, swipe down from the top of the screen.
2.Tap   Settings  > App Manager  > Device Monitor .3.Tap .
4. Tap Mobile Data...

You are connected to the BlackBerry Infrastructure.The number of solid waves indicates the strength of the Wi-Fi signal. If the signal is weak, your device might use more power to try to maintain the connection.Your device is connected to a VPN.Your device is in airplane mode and all of your wireless
network connections are 
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Network connections
Mobile networkA mobile network connection allows your BlackBerry device to make calls and, if you have a data plan, use data
services such as Internet browsing. In some locations, such as in a hospital or on an airplane, you need to turn 
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