MG HE Series Manual page 41

Figure 16 - Four battery module connected in parallel on a single Master LV. Cables must have matching lengths.
There are multiple options when connecting more than four batteries in parallel.
1. Paralleling at the battery modules.
2. Paralleling using the Distributor LV.
3. Paralleling using a custom bus bar connection system.
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Version 2.3 – 21-9-2022