Installation Manual Owner manual

57
Battery Wiring Examples
• Neverinstallextrawashersbetweenthe
terminal mounting surface and the battery
cable lug—the connection must be direct and
secure.
• Alwaysinstallbreakersorfuseswithinthe
positive battery cable.
• Torque2/0(67.4mm
2
), 4/0 (107 mm
2
), or larger
code-approved cables rated 75°C or higher to
60-inch pounds/6.77Nm.
In renewable energy systems, batteries are connected to each other in one of three ways:
 •Series(voltageincreases,amperagestaysthesameasasinglebattery)
 •Parallel(voltagestaysthesameasasinglebattery,amperageincreases)
 •Series/Parallel(bothvoltageandamperageincrease)
Voltage remains at 12V 200 AH + 200 AH + 200 AH + 200 AH=800 AH
12V/200 Amp-Hours
12V/200 Amp-Hours 12V/200 Amp-Hours
12V/200 Amp-Hours
12 V + 12 V + 12 V + 12 V = 48 V Amp Hours remain at 200
Two strings of batteries in series are connected in parallel. The voltage increases to 48V and the
amp-hours increase to 400.
SERIES
PARALLELSERIES/PARALLEL
Battery Cable Lug
Lock Washer
Flat Washer
Nut
Insulator
Stud
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-
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12V/200 Amp-Hours
12V/200 Amp-Hours 12V/200 Amp-Hours
12V/200 Amp-Hours
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-
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12V/200 Amp-Hours
12V/200 Amp-Hours 12V/200 Amp-Hours
12V/200 Amp-Hours
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12 V
200 Amp-Hours
12 V
200 Amp-Hours
12 V
200 Amp-Hours
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12 V
200 Amp-Hours