Managing Battery Power; Default Critical And Low Battery Points - Honeywell Dolphin 9900 User Manual

Managing Battery Power

Data and files saved on Dolphin terminals may be stored in RAM memory, which does not persist through
a hard reset. Therefore, to help prevent data loss, maintain a continuous power supply to the terminal.
Letting the backup battery become fully discharged causes the terminal to lose all data in RAM.
Therefore, you should keep a charged battery pack in the Dolphin at all times. The internal battery
discharges prematurely if there is not at least a partially charged battery in the terminal. When you remove
a battery pack, insert another charged battery pack in the Dolphin immediately.

Default Critical and Low Battery Points

Dolphin terminals are programmed to display warnings when the battery reaches critical and low battery
points. There are two DWORD value registry entries
[HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Power] that set the warning points.
The default values for these entries are as follows:
"LowBatt"=19
(25%)
This sets the Low Battery point to 25% (19 hex=25 decimal). The low battery setting is the point at
which the user is notified that the battery is low by an icon in the Navigation bar. The user is notified
only once for a low battery.
"CriticalBatt"=a
(10%)
This sets the Critical Battery point to 10% (a hex= 0 decimal). The critical battery setting is the point
at which the customer is warned that the battery charge is very low. This warning is posted every 3
minutes until the situation is corrected.
Status Notifications
Icons appear in the Navigation bar to indicate battery status.
The main battery pack is low (at 25% or less). If the main battery is low and the terminal is in suspend
mode, pressing the SCAN or Power button won't wake the Dolphin terminal; you must replace the
discharged battery with a battery charged over 25% mark before you can resume terminal operation.
The main battery is critically low (at 10% or less).
The backup battery is low.
Setting Critical and Low Battery Points
Developers can reset these parameters in the registry from 0 (no warning) to 99 (would nearly always
warn). Warnings do not appear when the terminal is on external power.
You can review and set these battery points in the RegEdit Power Tool.
1. Tap Start > Power Tools > RegEdit.
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3/5/08
Dolphin® 9900 Mobile Computer
User's Guide–Preliminary