Then, the battery 30 is reversely placed in a “tool” mode position in {HEAD ~ the cavity} 17 of {TAIL ~ the main body} 10 
of
Then , the battery 30 is reversely placed in a “ tool ” mode position in { HEAD ~ the cavity } 17 of { TAIL ~ the main body } 10
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH