Battery Charging With The Inverter; Battery Temperature Sensor; Pass Through Ac Power - Holiday Navigator 2003 Owner's Manual

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.
The battery temperature sensor is affixed to one of the house
batteries, measuring the temperature of the battery and sending
this information to the inverter. When the battery temperature
rises the inverter will decrease charge voltage to prevent boiling the
batteries. When the temperature cools the inverter will raise
charge voltage. Voltage compensation with temperature variation
is necessary to keep charge voltage at optimum values. If the BTS
cord is unplugged from the inverter, the inverter will use a
temperature default setting of 77º F/25º C reference point.
Inside the inverter is a double pole "pass-through" relay that trips when AC
power is supplied to the input terminals. This will transfer AC power through
the inverter to the sub breaker panel in the bedroom. The sub breaker panel
supplies AC power to most outlets and appliances. When the inverter receives
AC power, the internal battery charger will "ramp up" battery charging voltage.
After approximately 20 seconds, the relay engages allowing AC power to pass
through the inverter to the sub-panel.
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N A V I G A T O R 2 0 0 3
Electrical Systems - House
Battery Charging
with the Inverter
Battery Temperature
Sensor
060085b
Pass Through AC
Power
8 • 2 9 3