The inverter can be set-up for stand-by power operation. If AC input is
discontinued to the motorhome, the inverter will automatically provide AC
power. When AC power is resumed, the inverter will automatically return to
“stand-by” mode. The stand-by mode is activated by momentarily 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 operat-
ing 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 con-
trolled 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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WINDSOR 8•197
Stand-by Operation
Battery Charging with the Inverter
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