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Old 10-26-2020, 03:28 PM   #9
sourdough
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Join Date: Feb 2014
Location: W. Texas
Posts: 17,688
Most modern converters have 3 stage chargers in them that charge based on the depletion of the batteries. The float charge maintains them;

"The FLOAT stage is where the charge voltage is reduced to between 13.0 VDC and 13.8 VDC and held constant, while the current is reduced to less than 1% of battery capacity. This mode can be used to maintain a fully charged battery indefinitely."
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