NEC 790 manual Determining Battery Status, Recharging the Main Battery Pack

Determining Battery Status

You can determine battery status by using the power icon on the lower right-hand side of the taskbar or through the power icon in the control panel. The icon on the taskbar displays as an electrical plug when the battery is fully charged (battery charging LED lights green) or as a battery while charging (battery charging LED lights amber).

To display battery status, use one of the following methods:

!Double tap the battery/plug icon on the taskbar, if present.

!Go to Start, Settings, Control Panel, and double tap the Power icon.

Recharging the Main Battery Pack

The main battery pack contains rechargeable Lithium-Ion cells. Recharge a battery pack when you see the following message displayed on your screen:

Main Batteries Very Low

To recharge a battery pack installed in the battery bay, connect the AC adapter. See “Connecting the AC Adapter” in Chapter 1.

The battery charging LED indicates the charging status of the main battery pack when the NEC MobilePro is connected to an AC power source. The LED status displays as follows:

!Lights amber while charging.

!Lights green when fully charged.

It takes approximately 4.5 hours to recharge a fully depleted battery pack regardless of the system's power state. However, if the main battery has been depleted for a prolonged period, you must allow 6-10 hours for the main and backup battery to fully recharge (see the section, “Recharging the Backup Battery”).

Note Through normal use, the capacity of a battery pack gradually declines. Should you notice that the battery does not stay charged as long as expected, it is probably necessary to replace the battery with a new one. Please refer to the section “Battery Replacement” later in this chapter. Depending upon use, a battery pack should recharge from full depletion approximately 300 times during the life of the battery.

2-10Introducing the NEC MobilePro