AOR AR8200 User Manual download pdf (Page 16)

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Here in the UK workshop we have attempted to recreate the failure condition without success,

try as we may we cannot cause the batteries to overheat the receiver... so it remains something of

a mystery.

For this reason, we cannot endorse the use of NiMH batteries while connected to external DC

but there is no reason why they cannot be charged using a separate external specialist charger

then inserted into the radio.

AR8200 MK3

The AR8200 MK3 is supplied with 1500mAhr NiMH batteries, this provides longer operation

between charges... some geographical areas are also in the process of banning NiCads due to

'green environmental' considerations of recycling the heavy cadmium metal.

The following text has been extracted from the MK3 addendum on the subject of batteries:

The batteries supplied with the AR8200 have been changed. To ensure that a completely full

charge is established, please assume the full charge time as follows, this replaces the reference

given on page 19 section 1-6-4 of the English language operating manual.

AR8200 NiCads, 700mAhr 12 hour charge

Mk2 NiCads, 1000mAhr 14 hour charge

Mk3 NiMH, 1500mAhr 22 hour charge

The AR8200 receiver employs standard ‘AA’ size batteries, so a range of different types can be

used (NiCad, NiMH, alkaline etc). For this reason, the charging circuit cannot be optimised for

any one specific type. It is most important that you do not over-charge the batteries and do not

keep topping them up without first running them down. If the batteries are flat, do not attempt

to ‘charge and operate’ the radio for the first hour of charging, this would lead to an increase in

internal heat generated by the AR8200. Do not connect an external power supply, mobile power

lead or charger if dry / alkaline batteries are fitted.

In order to provide the optimum level of charge and life-span from the MiMH batteries (Nickel

Metal Hydride) supplied with the Mk3,

use of a specialist dedicated external battery charger

is recommended

, they are readily available from electrical suppliers. The AR8200 is not

designed to charge rechargeable alkaline batteries.

AR8200 write protect

If you are unable to write data to your AR8200, you may have WRITE PROTECT enabled.

There are effectively three ways you may have restricted the writing of data (refer to the manual

for details). First check the following:

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AOR AR8200 User Manual Page 16