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Charging
The internal backup battery is powered by the main battery pack. Therefore, charging the internal backup
battery requires that the 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. The initial
charge cycle takes approximately 8 hours. After that, if the internal backup battery becomes fully
discharged of power, it requires a minimum of 10 hours of charging time to function normally.
Guidelines for Use
Follow these guidelines to maximize the life of the internal backup battery under normal usage conditions:
• Keep a charged Li-ion 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
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 terminal 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 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
following registry entry:
[HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Power]
There are two DWORD values in this registry entry: LowBatt and CriticalBatt.
The default values for these entries are as follows:
LowBatt=19 (25%)
This sets the Low Battery point to 25% (19 hex=25 decimal). When the battery hits the
percentage charge specified here, the user is notified by this icon in the Navigation bar .
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 the 25% mark before you can resume terminal operation.
CriticalBatt=a (10%)
This sets the Critical Battery point to 10% (a hex= 0 decimal). When the battery hits the
percentage charge specified here, the user is notified by this icon in the Navigation bar .
Note: Warnings do not appear when the terminal is on external power.