{HEAD ~ A method} of calibrating {TAIL ~ a capacity} of a rechargeable battery providing power for a portable electronic system, the method comprising the steps of: 
of calibrating
{ HEAD ~ A method } of calibrating { TAIL ~ a capacity } of a rechargeable battery providing power for a portable electronic system , the method comprising the steps of :
HEAD HEAD HEAD HEAD HEAD HEAD REL REL 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