The method 24 where the applying comprises applying to balance {HEAD ~ the state} of {TAIL ~ charge} of the first of the battery modules with the others of the battery modules 
of
The method 24 where the applying comprises applying to balance { HEAD ~ the state } of { TAIL ~ charge } of the first of the battery modules with the others of the battery modules
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH