Kyocera 2100 Series - Manual (Page 41)

User’s Guide for the Kyocera 2235 Phone 21
Power-save mode
Your phone changes to power-save mode when it cannot locate a signal.
When the phone is in power-save mode, you cannot make or receive calls,
and “Power Save Mode” and appear on the screen. Press any key to
return to normal operating mode.
Battery guidelines
• Do not take apart, puncture, or short-circuit the battery.
• 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, and
high humidity.
• Never dispose of any battery in or near a fire. It could explode.