Magnum Energy MM Series Owner's Manual

Also see for MM Series: Installation and operation guide Installation and operation guide

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© 2010 Magnum Energy, Inc.Appendix B - Battery InformationParallel WiringWiring the batteries in parallel increases the total run time the batter-ies can operate the AC loads. A parallel connection combines overallbattery capacity by the number of batteries in the string. Even thoughthere are multiple batteries, the voltage remains the same. In the ex-ample below (Figure 15), four 12 VDC/100 AHr batteries are combinedinto a single 12 VDC/400 AHr battery bank.Series-Parallel WiringA series-parallel configuration increases both voltage (to match theinverter’s DC requirements) and capacity (to increase run time foroperating the loads) using smaller, lower-voltage batteries. In the ex-ample below (Figure 16), four 6 VDC/200 AHr batteries are combinedinto two strings resulting in a 12 VDC/400 AHr battery bank.Figure 15, Parallel Battery WiringFigure 16, Series-Parallel Battery Wiring3412 volt battery bank (total capacity = 400 AHrs)overcurrentprotection12 volts(100 AHrs )12 volts(100 AHrs )12 volts(100 AHrs )12 volts(100 AHrs )To12 VDCInverterovercurrentprotectionString 2String 112 volt battery bank (total capacity = 400 AHrs)To12 VDCInverter6 volts(200 AHrs )6 volts(200 AHrs )6 volts(200 AHrs )6 volts(200 AHrs )