13.6VDC is the output of your converter, not the actual battery voltage. To get the actual battery voltage, disconnect from shore power (or place the use/store/ switch in the 'store' position and let the batteries rest for a few hours. Then take a reading at the batteries with a volt meter.
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lewster
Solar Tech Energy Systems, Inc.
Victron Solar Components and Inverters, Zamp Solar Panels, LiFeBlue and Battle Born Lithium Batteries, Lifeline AGM Batteries
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