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4. BATTERY CHARGING
NOTE: DO NOT charge the NBB-389 primary battery.
4.1 Period of time to charge
When the battery energy is almost consumed, the
BUSY lamp blinks to indicate it. Charge the
battery whenever the BUSY lamp begins to blink.
4.2 Precautions on Charging
(1) Charging should never be done at a
temperature below the freezing point.
(2) For charging, always use the attached battery
charger NBA-4141/NBA-4141A.
(3) Even when the radiotelephone is not used for
a long period, it is requested to charge the
battery every three months.
(4) IF the battery charger is not fixed on a desk or
bulkhead, put in a stable position.
(5) Never touch the charging terminals with a
metallic bar or bare hand. When the plug is
inserted to the AC convenience outlet, an
output immediately appears at the charging
terminals.
(6) Do not perform transmission during charging.
(7) Detach the carrying case from the
radiotelephone.
4.3 Charging
Procedure
(1) Attach the AC plug of the battery charger
NBA-4141/NBA-4141A to the convenience
outlet.
(2) Turn off the JHS-7, and insert the battery
pack into the battery charger, as shown in
Figure 4-1, with or without the radiotelephone
mounted on the pack. It is not possible to
insert the pack in a direction different from
that shown in the figure because of a
preventing mechanism.
When the battery pack is inserted correctly,
the QUICK lamp lights up red, and quick
charging begins.
(3) When quick charging is complete, the QUICK
lamp goes out. Then, the TRICKLE lamp
lights green, indicating that trickle charging
begins.
With the charger in this condition, the battery
pack is fully charged, and charging is
complete. Since trickle charge makes up for
the natural discharging of the battery pack,
the battery back is always charged fully as
long as in the trickle charge condition after
quick charge.
(4)
Both the "QUICK" and "TRICKLE" LEDs start
flashing, if there is abnormal to the battery. In this
case, remove battery and do not insert it until the
LEDs stop flashing.
Figure 4-1 Inserting of Battery Pack