©
2006 Magnum Energy Inc
.
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.
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. In the
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.
Figure 15, Parallel Battery Wiring
Figure 16, Series-Parallel Battery Wiring
35
Appendix B - Battery Information
12 volt battery bank (total capacity = 400 Ahrs)
over-current
protection
12 volts
(100 Ahrs)
12 volts
(100 Ahrs)
12 volts
(100 Ahrs)
12 volts
(100 Ahrs)
To
12VDC
Inverter
over-current
protection
String 2
String 1
12 volt battery bank (total capacity = 400 Ahrs)
To
12VDC
Inverter
6 volts
(200 Ahrs)
6 volts
(200 Ahrs)
6 volts
(200 Ahrs)
6 volts
(200 Ahrs)
http://www.wholesalesolar.com/inverters.html
http://www.wholesalesolar.com/inverters.html
