Parallelisation in discharge mode is not always possible, as it is difficult to start up the
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same charge states. - It is best to carry out parallelization via the charging mode.
Parallelisation in charging mode is not possible because the final charge SoC is below
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the maximum charge SoC of one or more modules. Here, the system should simply be
discharged a little bit so that the SoC of the systems sinks.
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