Another objective of the present invention is to provide {HEAD ~ a battery indicator} to display {TAIL ~ the stored voltage} of a battery 
Another objective of the present invention is to provide { HEAD ~ a battery indicator } to display { TAIL ~ the stored voltage } of a battery
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH