Sanyo SPRINT PCS VISIO SCP-7000 User Manual page 38

Charging the Battery
Your phone's Li-Ion battery is rechargeable and should be
charged as soon as possible so you can begin using your
phone.
Keeping track of your battery's charge is important. If your
battery level becomes too low, your phone automatically turns
off, and you will lose all the information you were just working
on. For a quick check of your phone's battery level, glance at
the battery charge indicator located in the upper-right corner
of your phone's display screen. If the battery charge is getting
too low, the battery icon (
a warning message.
Always use a Sprint-approved or manufacturer-approved
desktop charger, travel charger, or vehicle power adapter to
charge your battery.
WARNING
22 Section 2A: Phone Basics
Using the wrong battery charger could cause
damage to your phone and void the warranty.
) appears and the phone displays