Yosepower 350w Lishui. Change controller, or change to mid-motor bike?

[a573245325]

I have a Rockrider ST bike with a Yosepower 36V 350w hub kit. I'm happy with the power, but want more of an assistance rather than a speed feel. The controller is a lsw1599-3-5m.

I had thought I need to get a different bike with a mid-motor drive and torque sensors, but then I read about KT controllers.

I have 2 batteries so I'm sticking with 36V for now, but may want to go up to 48 at some point. I may also change the hub to a 250W one to be legal. I found the T09S and T09P. Do I need sine or square wave, and is this controller too big for my motor? Or am I going down the wrong path?
Cheers.

 

[saneagle]

I have a Rockrider ST bike with a Yosepower 36V 350w hub kit. I'm happy with the power, but want more of an assistance rather than a speed feel. The controller is a lsw1599-3-5m.

I had thought I need to get a different bike with a mid-motor drive and torque sensors, but then I read about KT controllers.

I have 2 batteries so I'm sticking with 36V for now, but may want to go up to 48 at some point. I may also change the hub to a 250W one to be legal. I found the T09S and T09P. Do I need sine or square wave, and is this controller too big for my motor? Or am I going down the wrong path?
Cheers.

Sine wave is better in most circumstances. The 250w version gives more power for speeds up to the legal limit and would also be better for 48v because it has a more appropriate Kv.

 

[Benjahmin]

Sine wave will be smoother and quieter. With KT you can alter the maximum current in the settings. However the maximum current is only applied in highest assist setting.
So limiting it to 17A @ 36v will be give you 720W on top setting but still be less than the maximum amperage of the controller. So kind to the controller, OK for the motor and alright for the battery so long as it's maximum current delivery is 20A or more.

 

[a573245325]

Thank you for the replies. Is the Lishui square wave?

The only place I can find the 22A sinewave Waterproof connector version that will also ship to the UK is this one. I also need to add the LCD controller.

Electric Bicycle Sine Wave Controller, Brushless, KT 15A-30A, 36V, 48V, 250W-1000W, Bicycle Accessories - AliExpress

Smarter Shopping, Better Living! Aliexpress.com

www.aliexpress.com

 

[saneagle]

Thank you for the replies. Is the Lishui square wave?

The only place I can find the 22A sinewave Waterproof connector version that will also ship to the UK is this one. I also need to add the LCD controller.

Electric Bicycle Sine Wave Controller, Brushless, KT 15A-30A, 36V, 48V, 250W-1000W, Bicycle Accessories - AliExpress

Smarter Shopping, Better Living! Aliexpress.com

www.aliexpress.com

You might have a problem with the pedal sensor if you get the waterproof connector one because the wires are often in a different sequence in the connector, though you can always hack the connectors off and join the wires. Also, it doesn't really make sense to use the controller with waterproof connectors if you get the aluminium box type, since you still need a bag or box to put it in, in which case you don't need waterproof connectors. Topbikekit has the Hailong type:

KT- 36V/48V 9Mosfets Sine Wave Controller for 10S/13S/14S Big Hailong 1-2 Case 65pcs cells [Hailong 1-2 22A Controller] - $48.00 : Zen Cart!, The Art of E-commerce

Zen Cart! KT- 36V/48V 9Mosfets Sine Wave Controller for 10S/13S/14S Big Hailong 1-2 Case 65pcs cells [Hailong 1-2 22A Controller] - ★★★★★ KT- 36V/48V 9Mosfets Sine Wave Controller for Big Hailong case 65pcs cells case 1--Rate Voltage:36V or 48V KT sine wave controller 2--Maximum...

topbikekit.com

the block connector type:

T09S 36V/48V500W 22A KT Sine Wave Controller For ebike [T09S KT 9Mosfers Controller] - $28.00 : Zen Cart!, The Art of E-commerce

Zen Cart! T09S 36V/48V500W 22A KT Sine Wave Controller For ebike [T09S KT 9Mosfers Controller] - ★★★★★ T09S 36V/48V450W-500W Torque Simulation Sine Wave Controller For ebike 1--Rate Voltage: 36V/48V Compatible 2--Maximum Current:22±1A 3--Low Voltage Protection:DC30±0.5V 4--Speed Set: 1-4.2V...

topbikekit.com

and the waterproof type:

T09S 36V/48V500W 22A KT Sine Wave Controller with Julet Waterproof connector [T09S controller waterproof plug] - $35.00 : Zen Cart!, The Art of E-commerce

Zen Cart! T09S 36V/48V500W 22A KT Sine Wave Controller with Julet Waterproof connector [T09S controller waterproof plug] - ★★★★★ T09S 36V/48V500W Torque Simulation Sine Wave Controller With Julet Waterproof connector 1--Rate Voltage: 36V/48V Compatible 2--Maximum Current:22±1A 3--Low Voltage...

topbikekit.com