Recharging The Backup Battery - NEC MOBILEPRO 780 User Manual

Note:
battery pack gradually declines. Should you notice
that the battery does not stay charged as long as ex-
pected, it is probably necessary to replace the bat-
tery with a new one. Please refer to the section
"Battery Replacement" in this chapter. Depending
upon use, a battery pack should recharge from full
depletion approximately 300 times during the life of
the battery.

Recharging the Backup Battery

The backup battery charges while the main battery is
charging. It usually takes approximately 4.5 hours to re-
charge both the main and backup batteries together.
A full 10 hours charging time is required under either of
these circumstances:
!"
this is the first time you have used your MobilePro
!"
the main battery has been in a depleted state for a pro-
longed period.
In these cases, allow ten hours for both the main and
backup batteries to charge, even if the LED indicator on
the front of the MobilePro lights green before the full 10
hours are passed.
To protect your data, do not use the system until the
backup battery is charged.
To recharge the main and backup batteries, connect the
AC adapter. See the section, "Connecting the AC Adapter"
in Chapter 1.
2-12 Introducing the NEC MobilePro
Through normal use, the capacity of a