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BSL & Victron set-up guide
2.2
Multiple batteries
2.2.1
Max number of parallel batteries
A maximum of 15 batteries can be connected in parallel. Each battery will require a
unique binary address which can be setup via the dip-switches located on the front of
the battery. Please see [2] and [3]
2.2.2
Installing multiple batteries
When installing more than one battery in parallel, a standard RJ45 patch network cable
will be required for inter-battery communication. These cables will need to be connected
to port 4 or 5 between all the connected batteries. The ports are paralleled therefore
any port can be used for in or out connection.
2.2.3
Cable sizing with multiple batteries
It is recommended to make use of a common rail bus-bar when more than 4 batteries
are to be installed. All positive cables running between the battery and bus-bar must be
the same length and all negative cables must be the same length. The batteries should
be evenly grouped where possible.
5.1kWh (100Ah)
The recommended battery cable sizes from the batteries (going to the inverter) in par-
allel are as follows: 1 battery - 35
2
35
, 4 batteries - 95
6.4kWh (125Ah)
The recommended battery cable sizes from the batteries (going to the inverter) in par-
allel are as follows: 1 battery - 35
2
35
, 4 batteries - 95
10.2kWh (200Ah-Power wall)
The recommended battery cable sizes from the batteries (going to the inverter) in par-
allel are as follows: 1 battery - 35
2
35
, 4 batteries - 95
8.2kWh (160Ah)
The recommended battery cable sizes from the batteries (going to the inverter) in par-
allel are as follows: 1 battery - 35
2
35
, 4 batteries - 95
Page 3
, 2 batteries - 50
or 2
50
, 2 batteries - 50
or 2
50
, 2 batteries - 50
or 2
50
, 2 batteries - 50
or 2
50
BSL
, 3 batteries - 70
, 3 batteries - 70
, 3 batteries - 70
, 3 batteries - 70
or
or
or
or
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