A graph showing the process of warming up a Zebra battery in a Think A306 and initial charge.
The graph begins at about 150C.
Notable points are:
at about 16th hour and 210C the contactors close and the voltage of the battery jumps from 0 to 370V.
at about 21 1/2 hour and about 240C the charging starts.
at about 78% and 384V the constant voltage is kept with lowering the current of the charge (the orange line)
after a brief period the charge is resumed
at about 33th hour the End Of Charge is reached and the SOC is re-calibrated to 100%