User Guide for the Kyocera KX440 PTT phone 3
• 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.
• Making and receiving Push to Talk (PTT) calls.
• Using the speakerphone.
• 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.
