Optimizing Battery Life - LG Ignite Manual Del Propietário

The Basics
6
Charging with USB
You can use your computer to charge your phone. To be able to
charge with the USB cable, you need to have the necessary USB
drivers installed on your PC first. Connect one end of the USB
cable to the charger port on your phone and connect the other
end to a USB port on your PC. It is best to use the rear USB port
when connecting to a desktop PC. The USB hub should be
powered by an external power source.
G
NOTES
Low-power USB ports are not supported, such as the USB port on your
keyboard or bus-powered USB hub.

Optimizing Battery Life

You can extend your battery's life between charges by turning off
features that run in the background. You can also monitor how
applications and system resources consume battery power.
Tips to extend the life of your battery
Turn off radio communications that you aren't using.
If you aren't using Wi-Fi, Bluetooth, or GPS, use the Settings
menu to turn them off. (Note that the GPS receiver is only
turned on when you're using an application that makes use
of it.)
Turn down screen brightness and set a shorter screen timeout.
If you don't need them, turn off automatic syncing for Gmail,
Calendar, Contacts, and other applications.
Use the Power Control widget to control the wireless
connections, GPS connection, Bluetooth power, display
brightness, and syncing activity.