BNC 835-3 User Manual - Manual (Page 38)

7. Battery Operation (B3 Option)
If your 835-3 is equipped with an internal rechargeable battery (B3 option) it can be
operated without the external power supply. Fully charged, the battery is good for up to
three hours of operation at full RF output power. The same external power adaptor (6
V @ 3 A) is used for the battery version as for the standard 835-3 for both normal
operation and charging of the battery.
There are four operating modes that are also summarized in Table 2 below:
normal operation– the external power supply is connected to the 835-3 and the device
is turned ON (with the power switch on the rear panel turned ON). In this mode the 835-
3 can be used as if no battery was present. The internal battery is not used and will NOT
be charged.
charging – the external power supply is connected to the 835-3 and the device is
turned OFF (with the power switch on the rear panel turned OFF). In this mode the
835-3 is charging the internal battery. Once the battery is fully charged, the 835-3
goes into standby mode. The time required to complete charging is approx. four hours.
standby – the internal battery is fully charged and the 835-3 is turned OFF. battery
operation – the external power supply is disconnected and the device is turned ON. The
internal battery is supplying the power until it is exhausted.
Table 2: Operating modes of an 835-3 equipped with internal battery
External power
adaptor
Power Switch
supplying power disconnected
ON
Normal operation
(no charging)
Battery operation - until
discharged (1)
OFF
Charging – when fully
charged => standby (2)
Completely powered off
Notes:
(1) The 835-3 will switch off automatically when the battery is discharged. It is
recommended that the power switch be turned to the OFF position when the battery is
fully discharged.
(2) Termination of charging is automatic, the unit will then enter standby mode. The
power adaptor can be left connected for any length of time.
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