At 1004, a control processor determines whether the batteries are connected in {HEAD ~ series} or in {TAIL ~ parallel} 
At 1004 , a control processor determines whether the batteries are connected in { HEAD ~ series } or in { TAIL ~ parallel }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH TAIL TAIL TAIL TAIL TAIL