Essentially, {TAIL ~ the battery} 30, as configured, doubles as tool for removal of {HEAD ~ the cover} 20 
Essentially , { TAIL ~ the battery } 30 , as configured , doubles as tool for removal of { HEAD ~ the cover } 20
OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH