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