Battery Wiring Confi Gurations; Figure B-1, Series Battery Wiring; Figure B-2, Parallel Battery Wiring; Figure B-3, Series-Parallel Battery Wiring - Magnum Energy MS Series Owner's Manual

Appendix B - Battery Information
B-6 Battery Wiring Confi gurations
The battery bank must be wired to match the inverter's DC input voltage. In addition, the batteries
can be wired to provide additional run time. The various wiring confi gurations are:
B-6.1 Series Wiring
Wiring batteries in series increases the battery bank's output voltage. A series connection combines
each battery in a string until the total voltage matches the inverter's DC requirement. Even though
there are multiple batteries, the capacity remains the same. In fi gure B-1 below, two 6 VDC/200
AH batteries are combined into a single string resulting in a 12 VDC, 200 AHr bank.
6 VDC
(200 AH)
B-6.2 Parallel Wiring
Wiring batteries in parallel increases the battery bank's amp-hour capacity, which allows the AC loads
to operate for a longer time. A parallel connection combines the number of batteries in the string
to increase overall battery capacity; however, the voltage remains the same. In fi gure B-2 below,
two 12 VDC/100 AH batteries are combined into a single 12 VDC, 200 AH battery bank.
12 VDC
(100 AH)
12 VDC
(100 AH)
B-6.3 Series-Parallel Wiring
A series/parallel confi guration increases both voltage (to match the inverter's DC requirements)
and Amp-Hour capacity (to increase run-time for operating the loads) using smaller, lower-voltage
batteries. In fi gure B-3 below, four 6 VDC/200 AH batteries are combined into two strings resulting
in a 12 VDC, 400 AH battery bank.
6 VDC
(200 AH) (200 AH)
6 VDC
(200 AH) (200 AH)
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6 VDC
(200 AH)

Figure B-1, Series Battery Wiring

Figure B-2, Parallel Battery Wiring

6 VDC
12 VDC @
400 AH
6 VDC

Figure B-3, Series-Parallel Battery Wiring

Series Battery Wiring
combines battery voltage :
200 AH @ 6 VDC
12 VDC @
200 AH
200 AH @ 6 VDC
200 AH @ 12 VDC
Parallel Battery Wiring
combines battery capacity:
12 VDC @
200 AH
100 AH @ 12 VDC
100 AH @ 12 VDC
200 AH @ 12 VDC
Series/Parallel Battery Wiring
combines battery voltage and capacity:
200 AH @ 6 VDC
+
= 200 AH @ 12 VDC
200 AH @ 6 VDC
200 AH @ 6 VDC
+
= 200 AH @ 12 VDC
200 AH @ 6 VDC
add voltage add capacity
in series in parallel
+
=
+
=
+
= 400 AH @ 12 VDC
add voltage and
capacity together
© 2009 Magnum Energy Inc