Krown Manufacturing 2000 - Manual (Page 23)

The PP2000D can operate from battery power, making your unit completely portable. To use battery
power, unplug the AC charger/adapter from the unit.
When the batteries are fully charged, the Porta Printer will
operate for about 2 hours. The batteries will automatically
recharge whenever the unit is plugged into the AC
charger/adapter and the unit is turned OFF.
If you are using your Porta Printer on battery power and the
red Power Light starts to flash on and off (BRIGHT - dim -
BRIGHT - dim), this shows that the battery needs
recharging. The light will flash for several minutes. Then the
Porta Printer will stop working. When this happens, you must
change over to AC power (house electricity) to continue
using your machine until you recharge the battery.
It is suggested that you exercise the battery in your Porta
Printer at least once a month. That is, operate the unit on
battery power until it needs recharging. Then recharge the
battery by plugging in the AC charger/adapter for 12 to 14
hours. (The unit must be turned OFF in order to recharge.)
Repeat this cycle at least once a month. When used regularly
in this cycle at least once a month. When used regularly in
this cycle, the battery should last for about three years.
The replaceable, sealed battery pack is a single unit that
contains the battery, connector and cover. This unit is located
on the underside of the Porta Printer at the back of the unit.
Replacement battery packs are available from Krown
Manufacturing or your local Krown distributor.
To replace the battery pack, depress the thumb notch in the
center of the cover and slide the unit to the back of the TDD.
Carefully unplug the connector. Replace with a new battery
pack unit.
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TAKE YOUR PORTA PRINTER WITH YOU