Xantrex DR 1524, Installation & Operator'S Manual, Page: 28 / 84

20
2.0 INSTALLATION
©2000 Xantrex Technology Inc.
Wiring (continued)
Series/Parallel Configurations and Cross-Tying
To reduce the imbalances between the batteries in a series/parallel bank and improve the
overall battery bank performance, the batteries can be cross-tied. In this arrangement, the batteries
wired in the series part of one string are also wired in parallel with the batteries in the second string
making each battery in the bank a (parallel) pair. This technique is not a requirement, but can
improve the overall performance of the batteries and further increase the battery life as each battery
receives a more even charge/discharge cycle. However, cross-tying the batteries involves additional
expense of the extra battery cables and labor to wire them.
Cross-tying is shown in the following series/parallel configurations and is indicated by a light,
dashed line. If cross-tying is not desired, ignore these dashed lines.
6 V 6 V
3597-F00-D32
6 V 6 V 6 V 6 V 6 V
6 V
6 V 6 V 6 V 6 V 6 V 6 V 6 V 6 V
– + – + – + – + – + + + – –
– + – + – + – + – + + + – –
+
–
Cross-tie cable
(not required)
Cross-tie cable
(not required)
Cross-tie cable
(not required)
Cross-tie cable
(not required)
Cross-tie cable
(not required)
Cross-tie cable
(not required)
Cross-tie cable
(not required)
Cross-tie cable
(not required)
Cross-tie cable
(not required)
Cross-tie cable
(not required)
Cross-tie cable
(not required)
Cross-tie cable
(not required)
Cross-tie cable
(not required)
Cross-tie cable
(not required)
+
–
+ –
48 V INVERTER
(Total battery capacity = 200 Ah)
Fuse Block
Disconnect
6 V
6 V
3597-F00-D31
6 V
6 V
6 V 6 V 6 V 6 V
+ –
24 V INVERTER
(Total battery capacity = 200 Ah)
+ – + – + – + –
+ + – + – + – –
Cross-tie cable
(not required)
Cross-tie cable
(not required)
Cross-tie cable
(not required)
Cross-tie cable
(not required)
Cross-tie cable
(not required)
Cross-tie cable
(not required)
Fuse Block
Disconnect
6 V
6 V
3597-F00-D33
6 V 6 V
+ – + –
+ + –
Cross-tie cable
(not required)
Cross-tie cable
(not required)
Fuse Block
Disconnect
+ –
12 V INVERTER
(Total battery capacity = 200 Ah)
–
Figure 17
6 Volt Battery Wiring–Series/Parallel Configuration
(with optional cross-tie wiring)