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To save battery power while connected to a Wi-Fi network
Using Wi-Fi quickly consumes battery power. Turn off Wi-Fi when not in use.
You can also enable power saving settings while using Wi-Fi.
1. On the home screen, slide to the Settings tab, and then tap Menu > Wireless
Networks > Power Mode tab.
2. Move the Power Save Mode slider to a position
that optimizes performance with the least
power consumption.
For example, move the slider to the left (Best
Performance) to have the optimal wireless
network performance; move to the right (Best
Battery) to obtain the maximum battery usage.
GPRS/3G
Use GPRS/3G (or EDGE, if available) to connect to the Internet and to send and
receive email on your device. You will need a data plan to use your wireless service
provider’s GPRS/3G network. Check with your wireless service provider to find out
about GPRS/3G rates.
Your device is ready to use your wireless service provider’s GPRS/3G services. Do
not change the connection settings as this may cause services to stop working. If
you need to add another GPRS/3G connection on your device, contact your wireless
service provider.