The system includes a battery mounted in {TAIL ~ the vehicle body}; a controlling device mounted in the vehicle body and having first and second switches; and a positive/negative switching device mounted in {HEAD ~ the vehicle body} and electrically connected to the battery and the controlling device 
The system includes a battery mounted in { TAIL ~ the vehicle body } ; a controlling device mounted in the vehicle body and having first and second switches ; and a positive / negative switching device mounted in { HEAD ~ the vehicle body } and electrically connected to the battery and the controlling device
OTH OTH OTH OTH OTH OTH OTH TAIL 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 OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH