MG Energy Systems LFP Series, Manual

Page: 28 / 48

MG Energy Systems B.V. | Foeke Sjoerdswei 3 | 8914 BH Leeuwarden | The Netherlands
+31 (0)58 750 89 47 | info@mgenergysystems.eu | www.mgenergysystems.eu
Innovation in energy storage
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.
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 11 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 11 - 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;