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4 When the battery is fully charged, the bars stop scrolling and four bars are
displayed. You may now remove the charger plug from the communicator.
When the charge in the battery is low and only a few minutes of operation
time remain, a warning tone will sound, and the message BATTERY IS LOW will
be repeated at regular intervals on the phone display. When the charge level
becomes too low for operation, the RECHARGE BATTERY message will be
displayed, accompanied by a warning tone. If you do not connect the
communicator to a charger, the communicator switches itself off.
To use the battery
Use only batteries approved by the communicator manufacturer and recharge
the battery only with the chargers approved by the manufacturer. With
approved chargers and accessories, the battery can be charged continuously.
The battery need not be fully discharged before recharging. When a charger is
not in use, disconnect it from the power source. Do not leave the battery
connected to a charger for longer than a week, since excessive charging may
shorten its life. If left unused, a fully charged battery will discharge itself over
time.
The battery can be charged and discharged hundreds of times, but it will
eventually wear out. When the operating time (talk-time and standby time) is
noticeably shorter than normal, it is time to buy a new battery.
Temperature extremes will affect the ability of your battery to charge: allow it
to cool down or warm up first.
Battery operation time is affected by the following: whether both the phone
and the communicator interface are on, radio signal strength, various phone
settings, the use of the backlight, and the length of the screen blanker period,
see ”System settings” on page 125.
It is recommended always to keep a charged battery in the communicator.
Keeping the battery charged maximises the lifetime of the backup battery
supplying power to the real-time clock of the communicator. In case the
backup battery is drained, it will be automatically charged the next time a
charged battery is reconnected to the communicator.
Always close the device cover before removing the battery. Closing the cover
will save all data.
Note: If the battery is fully discharged, it will
take 30 - 60 seconds before the CHARGING
message appears on the display and the battery
indicator bar starts scrolling. After that, it may
take 10-30 seconds before you can switch the
phone on.