7
EN
3 Get
started
Charge power
Pi3900
has a built-in battery that can be
charged through the USB connector of the
supplied USB power adapter.
Z
Pi3900
, charge
Pi3900
for more than eight hours.
% By using the USB cable, connect
Pi3900
to the supplied USB power
adapter.
Note
%
Rechargeable batteries have a limited number of charge
cycles. Battery life and number of charge cycles vary by
use and settings.
Conserve battery power
%
To conserve battery power and increase
the play time, do the following:
Use the power control widget
With the power control widget, you can switch
off the functions conveniently when they are
unnecessary.
To add the widget to the Home screen,
1
From the Home screen, select >
WIDGETS
.
2
+=
widget.
3
Tap and hold the widget to add to the
Home screen.
To use the widget,
a
Switch on or off Wi-Fi
b
Switch on or off Bluetooth
c
Switch on or off GPS
d
Switch on or off background sync (for
some apps, like mail)
e
Change the screen brightness
Use the sleep mode
After the selected time duration,
Pi3900
goes
to the sleep mode, and the screen switches
off automatically. To save battery power, do the
following:
%
Go to >
Display
>
Sleep
to set the
screen-off timer to a low value.
%
To switch off Wi-Fi during the sleep mode,
a
Go to > Wi-Fi.
b
At the top bar, select > Advanced
> Keep Wi-Fi on during sleep. Select
Never.
d
a
c
b
e
