Thanks guys, does anyone know as well if I stick a voltmeter on the charger output, is it supposed to output 84V or would it require load sensors and stuff before it activates its output? I haven't tried yet, can't seem to find any info online searching about these chargers. So, might just need to replace it. I don't have much need for a fast charger, just more risk and wear on the batteries, I usually am pretty wiped about 35-40km of mountain riding, legs/back so not much need for multiple charges in a day.
Had to break out the trusty pedal muni and bike today for my mountain rides, was brutal hot though, but no motor to overheat, just my own! haha