sony xperiya z maintenance

Battery

Your device has an embedded battery.

Charging the battery

Your battery is partly charged when you buy your device. It may take a few minutes before the battery icon  appears on the screen when you connect the charger cable to a power source, such as a USB port or a charger. You can still use your device while it is charging. Charging your device over a long period of time, for example, overnight, does not damage the battery or the device.

To charge your device

1. Plug the charger into a power outlet.
2. Plug one end of the USB cable into the charger (or into the USB port of a computer).
3. Plug the other end of the cable into the micro USB port on your device, with the USB symbol facing up. The notification light lights up when charging starts.
4. When the notification light is green, the device is fully charged. Disconnect the USB cable from your device by pulling it straight outwards. Make sure not to bend the connector when removing the cable from the device.

Use the charger and USB cable provided with the device to ensure faster charging.

If the battery is completely discharged, it may take a few minutes before the notification light lights up after you connect the charger cable to a power source.

Battery notification light status

Green	The battery charge level is greater than 90%
Flashing red	The battery level is low
Orange	The battery is charging and the battery charge level is less than 90%

To check the battery level

1. From your Home screen, tap  .
2. Find and tap Settings > About phone > Status > Battery level.

Improving battery performance

The following tips can help you improve battery performance:

• Charge your device often. This will not affect the lifetime of the battery.
• Downloading data from the Internet is power consuming. When you're not using the Internet, you can save power by disabling all mobile data connections from the Notification panel by dragging down the status bar. This setting does not prevent your device from transmitting data over other wireless networks.
• Turn off Bluetooth® and Wi-Fi® when you don't need these features. You can turn them on and off more easily from the Notification panel by dragging down the status bar.
• Use the STAMINA mode and Low battery mode features to reduce battery consumption. You can select the power saving mode that best suits the way you use your device. You can also customise the settings of each power saving mode.
• Set your synchronisation applications (used to synchronise your email, calendar and contacts) to synchronise manually. You can also synchronise automatically, but increase the synchronisation intervals.
• Check the battery usage menu in your device to see which applications use the most power. Your battery consumes more power when you use video and music streaming applications, such as YouTube™. Some applications downloaded from Google Play™ may also consume more power.
• Close and exit applications that you are not using.
• Lower the screen display brightness level.
• Turn off your device or activate the Airplane mode setting if you are in an area with no network coverage. Otherwise, your device repeatedly scans for available networks, and this consumes power.
• Use a Sony™ original handsfree device to listen to music. Handsfree devices demand less battery power than your device's own loudspeakers.
• Keep your device in standby mode whenever possible. Standby time refers to the time during which your device is connected to the network and is not being used.
• Disable any live wallpaper.

To access the battery usage menu

1. From your Home screen, tap  .
2. Find and tap Settings > Power management > Battery usage.

Using STAMINA mode

Activate the STAMINA mode feature to pause your Wi-Fi® connection, data traffic and several power consuming applications when your screen is inactive. When STAMINA mode is active, you can still receive phone calls, and text and multimedia messages. You can also set up an applications list to allow some applications to keep running when your screen is inactive. Once the screen becomes active again, all paused functions are resumed.

To activate STAMINA mode

1. Drag the status bar downwards, then tap .
2. Find and tap Power management.
3. Drag the slider beside STAMINA mode to the right, then tap Activate.  appears in the status bar when STAMINA mode is activated.

To deactivate STAMINA mode

1. From your Home screen, tap  .
2. Find and tap Settings > Power management.
3. Tap  next to STAMINA mode.

To change the settings for STAMINA mode

1. From your Home screen, tap .
2. Find and tap Settings > Power management.
3. To open the settings menu, tap STAMINA mode.
4. Add or remove applications, as desired.
5. When you're finished, tap Done.

Estimating the standby time of your device

Standby time refers to the amount of time the battery can last when your device is connected to the network but is not in active use, for example, to receive or make phone calls. STAMINA mode, when activated, continuously evaluates the remaining standby time, which can vary depending on how you use your device. STAMINA mode is more effective in lengthening the standby time if you keep the screen of your device locked. If you rarely lock the screen, you may not see much improvement in battery performance.

When you use your device for the first time, the estimated standby time may not be accurate since there is no previous usage history to estimate from.

To view the estimated standby time

1. From your Home screen, tap .
2. Find and tap Settings > Power management.

Using Low battery mode

You can activate the Low battery mode feature to save power when the battery level is low. This feature helps you to adjust the settings for screen brightness, data traffic and the vibrate function so that you can reduce battery consumption.

To activate Low battery mode

1. Drag the status bar downwards, then tap .
2. Find and tap Power management.
3. Drag the slider beside Low battery mode to the right.

To deactivate Low battery mode

1. From your Home screen, tap  .
2. Find and tap Settings > Power management.
3. Tap  next to Low battery mode.

To change the settings for Low battery mode

1. From your Home screen, tap .
2. Find and tap Settings > Power management.
3. To open the settings menu, tap Low battery mode.
4. Adjust the settings as desired.
5. When you're finished, tap .