at last fitted kt square wave 36/48v to yose/elife 350w

footpump

Esteemed Pedelecer
Mar 19, 2014
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75
76
hi all at last managed to fit the kt square wave 36/48v to 350w rear hub moter kit.
I could not resolve the pas turning the moter wheel in reverse, I tried switching the phase wires over with each other but that did nothing.

in the end I turned the kt v12l pas around 180 degrees ,so splines now point outwards so now all works ok.
with 15amp controller the pas watt readout was pas1 54 2 =98 3=173 4 =228 5 =430

with the 17amp 36/48 one pas 1 = 80 2=130 3=225 4=312 5= 530

cannot notice much difference in pas 1/2/3 but you can in 4 and definitely in 5.

only real snag is my old thumbthrottle keeps sticking.

the 15 amp 6 mosfet controller got very hot, the larger 9 mosfet one 17 amp seems far cooler

I wish I had a 48v battery to try with this set up.

slightly off topic a m8 is a mechanic in local lbs which has some very nice emtbs which range from 2k-6k (I tried a 3.3k mtb on one local steep ars**** of a hill and it was easier than the ebikes I have) and today he said throw the boat out and buy one of these nice mtbs.

if I can get up some of these local hills a bit easier than at present with controller upgrade , a better battery (48v) I will be more than happy with a far more modest layout,
 

Nealh

Esteemed Pedelecer
Aug 7, 2014
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West Sx RH
Why sq wave and not sinewave ?

48v is impressive in pas 5, as you have notice 5 gives 75/80% more power then pas 4.
 

footpump

Esteemed Pedelecer
Mar 19, 2014
713
75
76
nealh the square wave 36/48 350 kt controller is sensorless so I only needed to fit the 3 phase wires, I used the short female lead of my original 15amp controller which I fried due to shunt mod, to fit the 36/48 square wave my main interest was to see how much extra the 17amp controller gave vs 15amp

I have the 17amp 36/48 sine wave ,but everytime I try to run it get 003 error mode, I suspect damaged connecters in the 9 pin to controller lead, although none are broken in doing a continuity test.

have ordered an other lead fro a express. the sine wave controller is sensored