Holiday imperial 2001, Owner'S Manual, Page: 185 / 301

The inverter can be set-up for stand-by power operation. If for any reason
AC input is discontinued to the motorhome, the inverter will automatically
provide AC power. When AC power is resumed, the inverter will automati-
cally return to “stand-by” mode. The stand-by mode is activated by momen-
tarily pressing the “on/off” inverter remote button while the motorhome is
plugged into shore power or operating from the generator. Stand-by mode is
indicated by the inverter status light blinking. Battery charging is not affected
by stand-by operation.
NOTE: Remember to disable stand-by operation when not
in use. House battery power may be accidently consumed.
It may run down the house batteries.
Whether hooked to shore power or operating
from the generator, the internal battery charger of
the inverter will automatically charge the batteries
when AC power is supplied to the input terminals of
the inverter. The time it takes to charge the batteries
to a full state of charge varies greatly. It can take
several hours or even days depending on the inverter
set-up parameters and actual state of charge of the
batteries. The inverter uses a three stage charging
cycle. The first stage is “bulk” charge. The bulk
charge will bring the DC voltage up high, initially
between 14.2-14.6 Volts, actual bulk charge voltage
depends on which battery type has been selected in the programming menu.
The bulk charge cycle is controlled by voltage and current. The length of
time the inverter is in the bulk charge cycle will vary with the state of charge
of the batteries. The second stage is the “absorb” cycle. The battery voltage
in the absorb cycle is the same as the bulk charge cycle between 14.2-14.6
Volts. The length of the absorb cycle is a timed event determined by the
inverter. The final charging stage is the “float” charge cycle. Approximately
80% of the charging cycle has been completed by this time. The float charge
voltage is generally around 13.3-13.7 Volts. The last 20% of the charge cycle
typically takes the most amount of time.
NOTE: The inverter will charge the batteries with AC power
applied regardless of remote status.
Electrical Systems - House
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I M P E R I A L 8 • 1 8 5
Stand-By Operation
Battery Charging with the Inverter