Quote Originally Posted by gizz
That was very handy woody, thanks.
Tried a bosch 750gpa with an 8 inch wheel with an 8:1 reduction. It says 49,7 amps to spin a wheel and 99.3amps peak.
So a speed controller for 60A continous with a peak capacity with say 120 would be almnost perfect then?
I suppose the amps to keep the wheel spinning once started will lower but just to be sure.

Couldn't really find motors in the list named wheelchair ones, does anyone know roughly what currents they draw?
Theory's always fantastic. I found the NCC70's (70A) would blow reasonably regularly on a bosch 750 at 36V. For Bosch's I'd go for either a roboteq which has a 120A continuous current

Andy