Reading The Fuel Gauge - NEC VERSA 4000 BATTERY CHARGER WITH AC ADAPTER Manual

READING THE FUEL GAUGE

4 NEC Versa 4000 Series Battery Charger with AC Adapter
If the status LEDs display a blinking red light, you can solve the problem by checking
the following items:
!"
The battery pack is not connected properly. Remove the battery and reinsert it into
the connectors.
!"
The battery pack is defective. Insert another battery pack.
!"
Check to see that the battery contacts and battery charger contacts are clean. If the
battery contacts are dirty, wipe them clean with a dry cotton swab. If the battery
charger contacts are dirty, disconnect the charger from AC power and wipe the
charger contacts with a dry cotton swab.
!"
The battery charger took longer than 140 minutes to reach a full charge.
This may be due to a faulty battery, or battery charger. Remove the battery or
batteries. Reset the battery charger by removing and reattaching the AC adapter.
The fuel gauge lets you know how much battery power is present in each battery pack.
It consists of four green LEDs, located next to the battery charger bays.
Locating the Fuel Gauge