Datamax-O'Neil APEX 3 User Guide - Manual (Page 21)

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 Optional external battery chargers are available for Datamax-O’Neil batteries. Refer to
Section 4.7 “Printer Supplies” for detailed information.
4.2.2
Important Notes on Replacing Batteries
 Check for the correct Datamax-O’Neil battery part number and use only that replacement
part.
Risk of explosion if battery is replaced by an incorrect type.
Dispose of used batteries according to instructions in Section 4.5.
4.3 Verifying Battery Charge State
It is strongly recommended that the printer be tested before it is returned to Datamax-O’Neil.
Follow these steps to identify and correct the battery power problem. These steps will help to
determine if the fault is with the printer or some other part of the system.
To test the AC adapter:
 Use a multimeter and measure the output voltage. The output should be 10VDC.
 Press the switch and wait until all of the LEDs switch off.
 Insert the AC adapter plug into the printer. If the amber LED switches on, this indicates
that the battery is not fully charged, however it does indicate that the charge circuit is
functioning correctly.
 Per the above, the AC power portion of the circuit can be considered OK.
To test the DC power:
 Disconnect the AC Adapter after the battery has been charged for approx. 5 minutes.
 Press and hold the switch, press and release the switch, and then
release the switch. The printer will print a “self test” receipt.
 If the self test receipt is printed, the DC circuits can be considered OK.
To test if the battery is accepting a charge:
 Press the switch and wait until all LEDs switch OFF.
 Plug the AC power adapter into the printer. Press ; the green LED illuminates and
switches OFF after approx. 20 seconds.
 If the amber LED is ON, this indicates that the battery is charging and that the charging
circuit is OK. After the 180 minute charge cycle, the LED will switch off.