Some smart battery packs include a microcontroller which allows {HEAD ~ communication}, by way of a bi directional communication line, with {TAIL ~ the battery charger} regarding various battery characteristics 
with
Some smart battery packs include a microcontroller which allows { HEAD ~ communication } , by way of a bi directional communication line , with { TAIL ~ the battery charger } regarding various battery characteristics
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH