MG HE Series Manual page 42

Paralleling at the battery modules
Paralleling at the battery modules makes it possible to connect more than four battery modules to a
Master LV or other DC distribution. Important is that the cable lengths of the battery modules must
be as equal as possible to prevent too much differences during charging and discharging.
Figure 17 shows the connection of two paralleled groups of two battery modules. The two batteries
in a group are connected crosswise. This is done to make sure the two batteries have the same total
length of power cables and thus the same cable resistance.
Figure 17 - Example of battery modules paralleled in groups
NOTICE:

Do not create groups larger than five batteries;

Only use this method in 24 V or 48 V systems;
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Version 2.3 – 21-9-2022