R
27
Managing the Battery Bank
Stages of Charging
Every time the WhisperGen is operated, it charges the battery bank. There are three stages in a
typical charging cycle as shown below:
The absorption and float charging voltages, the current level at which absorption-charging
ceases, and other battery-charging settings, are set during the installation of the WhisperGen.
These settings are set according to the needs of your particular application. If you wish to change
these settings, contact your authorised WhisperGen agent.
Bulk-charging
The battery bank is
charged at the
maximum rate. The
voltage typically rises
2 or 3 Volts while the
current is maintained
at a fixed level.
Bulk-charging
Absorption-charging
Float-charging
Time
Time
Voltage across Battery
Bank Terminals
Current Supplied
to Battery Bank
Absorption-charging
The battery bank is
about 80% charged at
the beginning and the
voltage is maintained
at a fixed level to fully
charge it. The current
decreases gradually.
Float-charging
The charged state
of the battery bank
is maintained with
a small current and
reduced voltage.
WTL0013
During the installation of the WhisperGen, some system parameters are
set specifically for the particular battery bank that is being used. Before
changing the battery bank to a different type or size, consult your
authorised WhisperGen agent.