Power Sources; Ac Adapter - NEC VERSA 2000 Service And Reference Manual

POWER SOURCES

For optimum performance and power conservation, use the AC adapter to power the Versa
2000 series system. Other power sources include the battery pack, the optional car DC
adapter and the optional docking station .

AC Adapter

The AC adapter allows the system to operate with AC power, recharges the battery pack,
and maintains the bridge battery. The internal backup battery allows the system to retain
system parameter information.
If the AC adapter is used primarily, remove the battery pack to reduce system weight.
NOTE: Make sure that the AC adapter is
connected at all times. It will continue to charge
the battery pack and bridge battery during
operation or when the system is turned off.
CAUTION: Only use the AC adapter model
provided with the Versa 2000 series system.