AOR AR2000 - Power and Battery Management; Battery Operation and Charging; Battery Care and Potential Hazards; External Power Connection

AR2000 Operating manual Page 2
Accessories supplied
DA900 single wide band whip aerial for VHF and UHF
AC charger
4x AA high capacity rechargeable NiCad batteries
12V DC lead for mobile operation
Soft case with carry strap
Belt hook
Operating manual
Power and batteries
The receiver is powered from 4 x AA high capacity rechargeable NiCad batteries (supplied), they are
already fitted inside the the set. The NiCads can be recharged using the supplied AC charger or DC
lead and may be used over and over again.
The NiCads are NOT factory charged and it is suggested they are put onto charge while you read this
manual. A full charge will take about 15 hours with the receiver switched off. A set of fully charged
NiCads should give a few hours of average use, this will depend on operation, settings such as
volume will have a great effect. Please note, background noise may still be heard from the speaker
even though the NiCad batteries are exhausted, usually the Liquid Crystal Display fails to operate
in this condition.
The supplied AC charger is NOT designed to power the set while charging. The receiver should be
switched off while charging the NiCads using the supplied charger.
Nicads are prone to ‘memory effect’, as a result they may have to be cycled (fully charged and used
until flat) 3 or 4 times before they provide a satisfactory period of operation. Once charged, you
should never leave the NiCads in a flat condition. Although you may charge the NiCads in order to
‘Lop up’ their capacity if you have only used the set for an hour or two, the NiCads should be cycled
at least once per month to ensure continued long term reliability.
Note: Do not over-charge the NiCads, (15 hours is sufficient). In severe cases of over-charging high
temperatures can be generated, this can result in damage to the NiCads and to the receiver. If this
point fs ignored, there is a small but potential danger of personal injury due to explosion. Never
short circuit NiCad batteries, the effect is similar to over-charging but happens very quickly. Never
try to charge normal ary batteries.
The internal NiCads are located in the battery compartment on the rear lower half of the receiver.
They may be easily removed so that an additional set of NiCad or dry cells may be substituted when
the first set become drained, this will enable extended operation when away from the house or car.
When connected to a nominal 13.8V DC power source (using the supplied lead in the car or at home)
the receiver may be operated and the NiCads recharged at the same time. The supplied lead is wired
CENTRE POSITIVE, make sure you observe the correct polarity.
©1991 AOR Ltd.