Datamax-O'Neil PrintPAD 7900 User Guide - Manual (Page 5)

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PRINTPAD 7900 USER'S GUIDE
Using Batteries
The printer ships with two batteries installed. Before
operating the printer, remove the two red, isolator
labels either by gently pulling the labels out, or by
lifting the batteries up.
Charging Batteries
1. Plug the power supply connector into the printer's
power port. The power port is located on the side of
the printer's case and is accessible when the
printer's lid is closed (Figure 1).
2. Plug the AC adapter in an appropriate power source.
The charge LED turns red when charging and turns
green when fully charged. The charge LED is visible
when the printer's lid is closed. A complete charge
takes approximately 6 hours.
You can determine the relative battery capacity by
printing a self-test. For more information, see Printing a
Self-Test on page 6 . On the printout, “Battery Volt”
varies between 6.8 and 8.4 volts.
Caution: There is a risk of explosion if the battery is
replaced by an incorrect type. Dispose of used
batteries according to the instructions.
Figure 1