inexpensive 36/48v 20 amp controllers. where to buy?

[gblast123]

I was wondering where u can get inexpensive 36/48 V controllers, around 20 amp or less?

I am trying to convert an inexpensive 36v bike, with a 350 v motor into a 48 v bike.

Any help?

 

[dnmun]

you should be able to use the 36V controller at 48V lifepo4.

 

[gblast123]

i wondered about that. I used 12s lipo pack and it seems to work ok, but very little power.

I think the controller is a 10 amp or less controller, so I was wondering if there were any 20 amp, 36/48 volt controllers out there ..
Kinda like the ones that used to be used by ebike kit or amped a few years back.

They used to be about $25-35, but i cant seem to locate the right ones now.

Any help would be appreciated.

 

[opperpanter]

Subscribed

 

[wesnewell]

Take your pick.
http://www.aliexpress.com/wholesale?catId=0&initiative_id=AS_20150105132030&SearchText=48v+controller+brushless
http://www.ebay.com/sch/i.html?_odkw=48v+brushless+controller&_from=R40|R40&_osacat=888&_from=R40&_trksid=p2045573.m570.l1313&_nkw=48v+brushless+controller&_sacat=0

 

[Nobuo]

Check those, I guess are the cheaper ones from a well known seller

http://www.aliexpress.com/store/group/6-mosfet-type/313864_259093765.html

 

[motomech]

These are the the best ones I have found, and I have tried a lot of them;

http://www.ebay.com/itm/36V-48V-500W-9-Mosfets-E-Bike-Motor-Controller-with-LED-meter-/221582052797?pt=Other_Sports_Fan_Shop&var=&hash=item339751cdbd

It's from Elifebikes, a trusted vendor here on the Sphere.
It has a nice LVC of 41 V, is very smooth and quiet and the cruise works well.
It also has PAS and a 3 speed limiter control.
The only thing I can say bad about these, is that they are a little big for a 6-FET.

 

[gblast123]

These are the the best ones I have found, and I have tried a lot of them;

http://www.ebay.com/itm/36V-48V-500W-9-Mosfets-E-Bike-Motor-Controller-with-LED-meter-/221582052797?pt=Other_Sports_Fan_Shop&var=&hash=item339751cdbd

It's from Elifebikes, a trusted vendor here on the Sphere.
It has a nice LVC of 41 V, is very smooth and quiet and the cruise works well.
It also has PAS and a 3 speed limiter control.
The only thing I can say bad about these, is that they are a little big for a 6-FET.

There seem to be 2 potential problems.

Most of these say they only work with one voltage, ie either 36 or 48 and you have to specify it in advance.
Can u order the 36 v and use it with a 48 volt battery pack?

Also, it says that the EABS cannot be disabled... it seems like a function I would not want to use

Your thoughts?

 

[motomech]

The LVC of the 48V model would interfere with a 36V system.
I mis-read your post, as it never occured to me that some one would want to swap packs of different voltages.
My 48V has 63V caps and I would guess the 36V model would too(Never had one to open up), so it should work one 48V.
I believe they are specified 36v and 48V because of the different LVC's.
These things are so cheap you could buy one of each.

You just ignore the EABS wire(s).

 

[friendly1uk]

Is the s09s about 20amps and multi-voltage for $22 ?

https://bmsbattery.com/ebike-kit/553-s09p-500w-torque-simulation-square-wave-controller-ebike-kit.html

 

[motomech]

i THINK it's 27 A.
I tried one on a Cute and it was too much.