Just a note to make sure you understand the alarm logger wiring
. The black wire is connected to the internal logger frame and the battery
neg cable, the red wire is connected to the black wire when an alarm occurs if the N/O option is selected pulling the red wire to battery
negative potential. The red does not indicate it's a positive wire, a mistake that instantly destroys the little transistor in the logger.
Another point, the logger alarm transistor has a peak capacity of 0.5 amps, even a spike above that will kill the transistor.
Not that the alarm is only active while the fault is present, if it's cell over voltage, as soon as the charging
stops the cell voltag will drop and the alarm will stop. Some form of hysterisis will be rwquired to stop a relay chattering between the on and off state if driven directly from the alarm port wiring