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User Guide for the Kyocera K490 phone 3
• If you have not used the battery for more than a month, recharge it before
using your phone.
• Avoid exposing the battery to extreme temperatures, direct sunlight, or
high humidity.
• Never dispose of any battery in or near a fire. It could explode.
Common causes of battery drain
• Playing games.
• Using the Web.
• Keeping backlight on.
• Operating in analog ( ) mode. Your phone switches between modes to
find the best signal. To set your phone to operate in a single mode, select
Menu → Settings → Network → Digital or Analog.
• Operating in digital mode when far away from a base station or cell site.
• Using data cables or accessories, such as the Hands-free headset.
• Operating when no service is available, or service is available
intermittently.
• High earpiece and ringer volume settings.
• Repeating sound, vibration, or lighted alerts.