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4.When and if PV charges both the
house battery and starter battery at
the same time, there will be a solar
icon above the H and S.
Only ALT Charging—Starter Battery & House Battery
Connected
1.ALT charging will follow this chart, depending on your
alternator type.
Alternator Type
Cut-in Cut-off
Starting Battery Voltage
Smart Alternator
Traditional Alternator
＞13.2V,
for 15 seconds
＜12.7V
＞12.0V,
for 15 seconds
＜11.5V
2. ALT will prioritize charge to the
starter battery bank and charge until
the starter battery reaches above
the Cut-in Voltage.
3.Next, ALT will charge the house
battery until the lead-acid battery
reaches the Float Voltage. If the
house battery is Lithium, ALT will
need to reach the Boost Voltage and
derate amps completely to indicate
fully charged.
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