Lishui 36v 18amp controller for UK yose kit need a little more power

[Ian]

I have Lishui LSW 1699-1M sine-wave controller for the UK yose geared hub kit, max current 18A I am wondering if possible to upgrade the controller to around 25A?

At 36v 18A the 350W rated motor rarely gets warm, its just on some of the steeper hills around here I could use a little more power for short periods, so I don't have any concerns about damaging motor or wires.

Also, does anyone know the upper voltage cap on these controllers? My packs are 37v so don't want to go that route really, but it could be option if the controller could handle 12S lipo.

Thanks.

 

[stancecoke]

LSW 1699-1M sine-wave controller

Are you talking about the battery integrated controller?! This is not a sine wave controller, but a 9FET square wave controller.

https://www.yosepower.co.uk/product...ilt-in-controller-of-hailong-i-battery-slider

regards
stancecoke

 

[E-HP]

I have Lishui LSW 1699-1M sine-wave controller for the UK yose geared hub kit, max current 18A I am wondering if possible to upgrade the controller to around 25A?

At 36v 18A the 350W rated motor rarely gets warm, its just on some of the steeper hills around here I could use a little more power for short periods, so I don't have any concerns about damaging motor or wires.

Also, does anyone know the upper voltage cap on these controllers? My packs are 37v so don't want to go that route really, but it could be option if the controller could handle 12S lipo.

Thanks.

Just for awareness, without a temperature sensor inside the motor, you have no clue how hot the motor is since it’s a geared hub, and there is no path for the heat between the stator to the outer case.

Anyway, you should always start with your battery specs before upgrading your downstream components. If you are certain the battery can handle it, then should be ok. Is it rated for at least 25A continuous? Keep in mind the battery degrades over time, so the age matters as well.

So did you move from the uk to lake county? I love that area, despite having my worst motorcycle accident out there, near the geothermal plants by Cobb. I bet it’s great for ebiking.

 

[Ian]

Are you talking about the battery integrated controller?! This is not a sine wave controller, but a 9FET square wave controller.

https://www.yosepower.co.uk/product...ilt-in-controller-of-hailong-i-battery-slider

regards
stancecoke

Hi - its the stand alone controller. 36v rated, 18amp max for the rear kit.

 

[Ian]

Just for awareness, without a temperature sensor inside the motor, you have no clue how hot the motor is since it’s a geared hub, and there is no path for the heat between the stator to the outer case.

Anyway, you should always start with your battery specs before upgrading your downstream components. If you are certain the battery can handle it, then should be ok. Is it rated for at least 25A continuous? Keep in mind the battery degrades over time, so the age matters as well.

So did you move from the uk to lake county? I love that area, despite having my worst motorcycle accident out there, near the geothermal plants by Cobb. I bet it’s great for ebiking.

Thanks for reply. I am still based in lake county, but at UK for work right now. The lower powered Yose kit is mostly fine for the UK but wouldn't cut it for Lake county around cobb area- hilly area. Have a Bafang 1000W geared for there. My battery for proposed UK Yose upgrade is fine, I have turnigy lipo 12C continuous rated.

Its mostly flat where I'm located here in Southwest UK, so wearing out / overheating the Yose geared hub at 36V isn't an issue, but there are the occasional steep hills such as going up the cheddar gorge, so wouldn't mind a degree of extra power.

 

[stancecoke]

Hi - its the stand alone controller. 36v rated, 18amp max for the rear kit.

I don't know, why Yose has an own webaddress for UK, I bought one from yosepower.com, they are squarewave there.

The main difference between front an rear seems to be the light module in the front motor version.

regards
stancecoke

 

[fill]

If your current controller is a generic 'silver box' you could consider upgrading to both a dual voltage 36v/48v Controller in the same form factor from the KT Ketung Brand, and replace the current c500 ? display wih one of the KTlcd range at a cost of circa £80-100)

If you then invest in a 48v battery ? or if you have one for your other bike you can have circa 30% more torque/speed running with the current max output. (edit Battery/bms output limitations considered..)

KT do 20 or 22a dual voltage controllers iirc, But the KT controller will allow you to configure max output so if your motor runs hot you can cap its output lower than default.

topbikekit are a seller that 'so far' has a good rep on pedelec.co.uk ( dont mention the 1000w motor if you drop by, you will get reminders its outside regs,,) - not too naggy, I for one will 'nag' a bit to ensure people are doing what they do with eyes wide open..

 

[fill]

There is also the option of the 'shunt-mod' on your current controller.. Lots of youtubes and sufficient comments in here,

my view- its a one shot punt, if it results in too much power flowing through the controller it can brick it and if its overheating the motor there is no quick remedy beyond a shutdown.

but its an option .

 

[Ian]

Going to the pedelec forum was super helpful thank you, found posts that directly addressed upgrading with a Yose motor, and so will be upgrading to KT controller and meter with shortly.