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