Parallel Wiring; Series-Parallel Wiring; Figure 15, Parallel Battery Wiring; Figure 16, Series-Parallel Battery Wiring - Magnum Energy MM Series Installation And Operation Manual

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Parallel Wiring

Wiring the batteries in parallel increases the total run time the batter-
ies can operate the AC loads. A parallel connection combines overall
battery capacity by the number of batteries in the string. Even though
there are multiple batteries, the voltage remains the same. In the
example below (figure 15), four 12 VDC, 100 AHr batteries are
combined into a single 12 VDC, 400 AHr battery bank.
12 volts
(100 Ahrs)
12 volts
(100 Ahrs)
12 volts
(100 Ahrs)
12 volts
(100 Ahrs)
12 volt battery bank (total capacity = 400 Ahrs)

Figure 15, Parallel Battery Wiring

Series-Parallel Wiring

A series/parallel configuration increases both voltage (to match the
inverter's DC requirements) and capacity (to increase run-time for
operating the loads) using smaller, lower-voltage batteries.
example below (figure 16) four 6 VDC, 200 AHr batteries are com-
bined into two strings resulting in a 12 VDC, 400 AHr battery bank.
6 volts
(200 Ahrs)
String 1
6 volts
String 2
(200 Ahrs)
12 volt battery bank (total capacity = 400 Ahrs)

Figure 16, Series-Parallel Battery Wiring

©2006 Magnum Energy Inc.
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Appendix B - Battery Information
over-current
protection
To
12VDC
Inverter
6 volts
(200 Ahrs)
6 volts
(200 Ahrs)
In the
over-current
protection
To
12VDC
Inverter
35