Parallel Installation Steps
975-1042-01-01
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Parallel Installation
This section provides instructions for installing two to four
batteries in parallel to increase power capacity for robust
applications in your RV, truck, or vessel. This sections contains
the following topics:
Parallel Installation Steps
IMPORTANT
:
n
Batteries must be of the same make, model, and age for
all batteries connected in parallel.
n
Before connecting batteries together, verify
independently using a multimeter that each battery is
charged to 100% SoC. The open terminal voltage should
be within 0.05VDC of each other at the point of
connection. This procedure helps ensure that there is
minimal current flow and sparking between batteries.
Note that you can also use the Xantrex App to provide a
reading of SoC information. Nevertheless, a voltage
measurement using a multimeter must be taken to ensure
there is as little voltage between the terminals as
possible.
NOTICE
EQUIPMENT DAMAGE
Do not connect batteries in series.
Failure to follow these instructions can result in equipment
damage.
Figure 9 Parallel batteries
PARALLEL = YES
SERIES = NO
This is for
illustration
purposes only.
NOTE
: Keep the
cables between
batteries and
ground cables the
same lengths for
optimal
performance and to
ensure equal
discharging and
charging.
How to connect batteries in parallel:
1. Ensure that DC protection device (such as a DC fuse
and disconnect or a DC breaker) is opened or
disconnected before starting.
2. Turn OFF all batteries using the power push button on
the battery.
3. Install and secure the new batteries in their location.
NOTE
: With the locations ensure as minimal
variation is made between the cables connecting
the terminals of the batteries.
4. Connect the positive terminal to
the positive battery cable.