Nickel-Cadmium Battery
1. The power unit consists of a unitized, 12-volt,
NiCad battery package. A battery charger is
supplied with the instrument for recharging of the
battery pack after each normal day of operation,
and after prolonged periods of storage. The
battery charger has been designed for an “over-
night” charge.
2. A NiCad battery has been selected for use in the
power unit, because such a battery, under
proper care, provides good performance over
an extended lifetime. The following information is
provided to assist the user in obtaining optimum
battery performance.
3. Temporary effects on battery capacity may occur
if repetitive discharge and charge cycles are
used. This is sometimes referred to as “memory.”
When the battery is fully discharged or
discharged to random levels as in normal
operation and charged for random times, this
memory effect does not occur.
CAUTION
Before plugging the battery charger into an AC
power outlet, make certain that the rating of the
battery charger matches the rating of the available
I AC Power source.
4. The battery charger is designed to operate from
a nominal 110 volt, 50/60Hz supply. When only a
220 volt 50/60Hz source is available, use the
supplied 220/110 volt adapter.
TM 5-6675-330-12&P
Charging Procedure
1.
To charge the battery unit:
(a)
[b)
(c)
Plug the battery charger into an AC power
outlet that is continuously supplied with
power.
Plug the connector end of the battery
charger cable into the power connector on
the battery unit, The battery charger contains
red charge lights, which indicate that the
power unit is taking a charge.
A fully discharged battery unit requires
approximately 16 hours to complete
recharge, using the supplied battery charger.
2. The battery unit may be left plugged into the
battery charger without danger of overcharging;
however, during prolonged periods of inactivity,
the battery charger should be disconnected from
the battery pack and stored,
3. To prevent possible damage to the NiCad
battery, the battery unit should never be charged
in an area where the temperature falls below 5°C
(40°F), The ideal temperature range for charging
is 5°C (40°F) to 27°C [90°F].
NOTE
While the battery unit is charging, the battery charger may
become warm to the touch and may emit a buzzing
sound, This is normal, and is not an indication of a
malfunction in the battery charger
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