During {HEAD ~ operation} of {TAIL ~ storage circuitry} 20 , the battery modules typically have substantially the same state of charge which may be referred to as a nominal state of charge 
of
During { HEAD ~ operation } of { TAIL ~ storage circuitry } 20 , the battery modules typically have substantially the same state of charge which may be referred to as a nominal state of charge
OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH