What 84v controller for qs138 90h engine

Prestige

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Oct 2, 2021
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Hello. I am currently building a Suzuki SV 650 conversion and I am looking for a 24s 84v controller for the QS138 90H engine. In one of my projects I use a Votol EM200 and it is ok but I have not seen a Votol for 84v. I am thinking about a far drive.

Regards
 
You need a controller rated for 100v (24s fully charged)
Votol EM300, Sabvoton 96120 or Kelly KLS96601 should do the job
 
Or Fardriver ND84 or ND96 series.
96680 or 96850 or 96890 should be ok for the 138 90h, also the NND48680, 84850 or 84890.
Depends on how much power you want to squeeze out of the motor.

If money and size doesn't matter, go big and look for the ND961200 or 961800 controller. I
 
Or Fardriver ND84 or ND96 series.
96680 or 96850 or 96890 should be ok for the 138 90h, also the NND48680, 84850 or 84890.
Depends on how much power you want to squeeze out of the motor.

If money and size doesn't matter, go big and look for the ND961200 or 961800 controller. I
Thanks for the answer. I want to get 30kw of instantaneous power, I think it is possible with this engine. And why do you suggest 96v for a voltage of 84v? Isn't 84v enough?
 
It is always good to have a little safety margin, and pricewise it is no big difference.
For the controller change from Sabvoton to Fardriver I bought a ND96850, because I blew two 72V Sabvoton controllers before, but the ND96850 never made it in my scooter with its 21S Li-NMC battery.
I installed a ND72680 for 1/4 price of the ND96850 as it was available for cheap, and later I bought a used ND721800 for the half price of the ND96850.
The ND96850 is still laying unused in my cellar, waiting for the next build with 28-30S Lin-NMC.
 
It is always good to have a little safety margin, and pricewise it is no big difference.
For the controller change from Sabvoton to Fardriver I bought a ND96850, because I blew two 72V Sabvoton controllers before, but the ND96850 never made it in my scooter with its 21S Li-NMC battery.
I installed a ND72680 for 1/4 price of the ND96850 as it was available for cheap, and later I bought a used ND721800 for the half price of the ND96850.
The ND96850 is still laying unused in my cellar, waiting for the next build with 28-30S Lin-NMC.
This one would be perfect for me :) Would you like to sell it?
 
I think you do not want an over 2 Year old ND96850 that was delivered with the wrong Firmware and is not compatible to the new Bluetooth dongle.
When you want to make changes to the settings, the old Bluetooth makes a lot of trouble and some nececcary parameters can not be changed anymore.
I have the same issue with the 721800 I have bought, but I do not need weakening field in my scooter, as it is fast enough and all the other parameters that can not be changed were not nececcary, because it runs smooth and powerfull. With the ND72680 I had to tweak a lot of parameters to get a smooth drive, as it was shaking at different speeds. I could reduce it to only shaking at top speed, so I reduced that a little an everything was good.
I also was not able to save the changed parameters with the PC-Software, but I could test drive them.
Probably this ND96850 will end in a bigger lawn mower converted to electric, when it does not do a good job in the motorcycle I want to use it for.
Want to convert either a SZR660 or a SXV450/550 to electric, wathever I get for cheap and I am aiming for 40kw peak power.
 
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I think you do not want an over 2 Year old ND96850 that was delivered with the wrong Firmware and is not compatible to the new Bluetooth dongle.
When you want to make changes to the settings, the old Bluetooth makes a lot of trouble and some nececcary parameters can not be change anymore.
I have the same issue with the 721800 I have bought, but I do not need weakening field in my scooter, as it is fast enough and all the other parameters that can not be changed were not nececcary, because it runs smooth and powerfull. With the ND72680 I had to tweak a lot of parameters to get a smooth drive, as it was shaking at different speeds. I could reduce it to only shaking at top speed, so I reduced that a little an everything was good.
I also was not able to save the changed parameters with the PC-Software, but I could test drive them.
Probably this ND96850 will end in a bigger lawn mower converted to electric, when it does not do a good job in the motorcycle I want to use it for.
Want to convert either a SZR660 or a SXV450/550 to electric, wathever I get for cheap and I am aiming for 40kw peak power.
I see, so choose the 96 for 84v? The most powerful I can afford :) ?
 
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