Honeywell DOLPHIN 99EX - Manual (Page 41)

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If at any time the backup battery becomes fully discharged of power (e.g., the terminal is left without the
main battery pack for more than 30 minutes), the terminal resets when power is supplied. All files are
retained, but you may need to restart any running applications. In addition, a fully discharged backup
battery requires a minimum of 24 hours of charging time to reach a full charge.
Note: Data and programs stored in Flash memory are not lost even if the internal backup battery fails.
Charging
The internal backup battery and the RTC battery are powered by the main battery pack. Therefore,
charging the internal batteries requires a charged main battery pack be installed in the terminal and the
terminal be connected to a charging device.
The internal backup battery must be fully charged before using the terminal for the first time. Honeywell
recommends charging the Dolphin terminal for at least 24 hours prior to initial use to ensure the internal
backup battery is fully charged. After that, if the internal backup battery becomes fully discharged of
power, it requires a minimum of 24 hours of charging time to function normally.
Guidelines for Use
Follow these guidelines to maximize the life of the internal backup battery:
• Keep a charged Li-ion or Li-poly battery pack in the terminal; the backup battery prematurely
discharges if there is not at least a partially charged battery in the terminal.
• Keep the terminal connected to power when the terminal is not in use.
Managing Battery Power
Letting the backup battery become fully discharged causes the terminal to lose all data in RAM. Honey-
well recommends, you keep a charged battery pack in the terminal at all times to help prevent data loss.
The internal battery discharges prematurely if there is not at least a partially charged battery in the termi-
nal. When you remove a battery pack, insert another charged battery pack in the terminal immediately.
Default Critical and Low Battery Points
When the terminal is running on battery power (as opposed to external power), warnings are displayed
when the battery reaches critical and low battery points. The warning points are determined by the fol-
lowing registry entry:
[HKEY_LOCAL_MACHINE\ControlPanel\Power]
There are two DWORD values in this registry entry: MedState and LowState.
The default values for these entries are as follows:
MedState=25%
This sets the Low Battery point to 25%. When the battery hits the percentage charge specified
here, the user is notified.