{HEAD ~ The central controller} may selectively connect {TAIL ~ a main charger} or generator to a bank of batteries associated with a battery management unit 
{ HEAD ~ The central controller } may selectively connect { TAIL ~ a main charger } or generator to a bank of batteries associated with a battery management unit
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH