Alibaba 50 dollars VESC worth it?

Lightweight / Folding / Portable EVs - seats optional
Ryuudan
100 mW
100 mW
Posts: 49
Joined: Apr 07, 2015 8:34 pm

Alibaba 50 dollars VESC worth it?

Post by Ryuudan » Aug 09, 2016 8:18 pm

So I started to see VESCs being sold at alibaba.com for 65USD-50USD

https://www.alibaba.com/product-detail/ ... 0.0.utuVT2

I'm very concerned by the size of those capacitors, but considering I had to pay around 170 USD(with 45USD just for shipping) for my VESC from Ollinboard and now it's 165 USD without the 45USD shipping.

I don't want to pay 210 dollars for a VESC although I do want to part of it going to Vedder, I might buy from china and donate to him anyway.

Has anyone tried them to see if the quality is the same? I really doubt, but do they work at all?

User avatar
sl33py
10 kW
10 kW
Posts: 697
Joined: Apr 24, 2015 5:21 pm
Location: Seattle, WA

Re: Alibaba 50 dollars VESC worth it?

Post by sl33py » Aug 10, 2016 12:24 am

Yikes! I remember the pain folks went through with the first round of the Enertion VESC - where the factory substituted "equivalent" components (in other words - less expensive ones). Tons of headaches!

I wouldn't sweat the caps at this price - i'd buy one of the bigger ones like older 4.7 hardware had (vs the current 3 on PCB) and swap them. You want the cap as close to the PCB as possible anyway. Those tiny ones at the connector are not going to do you much good.

For $50-60 - it's almost worth a try (for science). But i wouldn't expect much - maybe for a 6s or 8s setup, but even that might be doubtful.

who's going to try and let us know?

User avatar
Ratking
10 kW
10 kW
Posts: 519
Joined: May 20, 2010 5:27 am
Location: Norway

Re: Alibaba 50 dollars VESC worth it?

Post by Ratking » Aug 10, 2016 4:32 am

I wonder if they use original mosfets, I would really like to buy one and see. I need three ecs's for the project, but I need them to work within the specs given.

User avatar
Vanarian
10 kW
10 kW
Posts: 583
Joined: Nov 26, 2014 12:24 pm
Location: France!

Re: Alibaba 50 dollars VESC worth it?

Post by Vanarian » Aug 10, 2016 9:01 am

I can't speak on the quality of these, BUT I can say two things :

1) I have been ripped off by bad quality of the Flier VESCs unfortunately and paid the price;

2) I also have been ripped off by Marcin Sleziak after he offered to me to service my VESCs (not free service of course), because the Flier VESCs were damaged even before using them. Bad soldering, some fried components, some fake components and list goes on.

Try for science if you're prepared to eventually lose 65$. Else get a true VESC from a trusted person like I did afterwards. At least now I have something great and quality made. Personnaly I don't want to be ripped off anymore.

Cheers
I needed to turn Air Gear stuff into reality so I am making this!
-+Electric inline skates - no remote control - weight / angle sensor - hub motors - one frame for all wheels sizes between 80/125mm - from 3.2 to 12 KW :mrgreen:

Rollo Ergo Sum!

User avatar
mccloed
100 W
100 W
Posts: 203
Joined: Nov 20, 2014 1:55 pm
Location: Garden Grove, CA

Re: Alibaba 50 dollars VESC worth it?

Post by mccloed » Aug 10, 2016 10:34 am

I actually purchased a couple from these guys. Should have them next week. I'll let you know how they are.

Ryuudan
100 mW
100 mW
Posts: 49
Joined: Apr 07, 2015 8:34 pm

Re: Alibaba 50 dollars VESC worth it?

Post by Ryuudan » Aug 10, 2016 10:36 pm

that would be great mccloed, please let us know.

I fried one of my VESCs and need 3 more, and don't have the money to buy them at 200 dollars a piece.

User avatar
sl33py
10 kW
10 kW
Posts: 697
Joined: Apr 24, 2015 5:21 pm
Location: Seattle, WA

Re: Alibaba 50 dollars VESC worth it?

Post by sl33py » Aug 11, 2016 1:49 am

Ryuudan wrote:that would be great mccloed, please let us know.

I fried one of my VESCs and need 3 more, and don't have the money to buy them at 200 dollars a piece.
DIYes i think has his at $99 (pre-order so you'll have to wait a bit to get). Just FYI.

Njakts
1 W
1 W
Posts: 59
Joined: Oct 06, 2015 10:53 am

Re: Alibaba 50 dollars VESC worth it?

Post by Njakts » Aug 11, 2016 2:10 am

I found this:
http://www.ebay.com/itm/VESC-4-12-Motor ... SwZ1BXe6Ct

someone has done some major HW changes..

Ryuudan
100 mW
100 mW
Posts: 49
Joined: Apr 07, 2015 8:34 pm

Re: Alibaba 50 dollars VESC worth it?

Post by Ryuudan » Aug 11, 2016 6:12 am

I've seen the heatsinked VESC on alibaba as well. it might increase durability if it's properly done. problem is if they downgraded mosfets to actually need heatsink.

User avatar
Ratking
10 kW
10 kW
Posts: 519
Joined: May 20, 2010 5:27 am
Location: Norway

Re: Alibaba 50 dollars VESC worth it?

Post by Ratking » Aug 23, 2016 9:15 am

mccloed wrote:I actually purchased a couple from these guys. Should have them next week. I'll let you know how they are.
Any update? I am about to buy a few myselfe, but would like to get your opinion first

User avatar
mccloed
100 W
100 W
Posts: 203
Joined: Nov 20, 2014 1:55 pm
Location: Garden Grove, CA

Re: Alibaba 50 dollars VESC worth it?

Post by mccloed » Aug 23, 2016 11:46 am

Always delays! They are actually shipping them to me this week.

User avatar
miffi
100 µW
100 µW
Posts: 9
Joined: Aug 23, 2016 11:49 am
Location: Charlotte

Re: Alibaba 50 dollars VESC worth it?

Post by miffi » Aug 23, 2016 11:57 am

It was inevitable that poor quality clones would happen. Looking forward to seeing if the alibESC works. :pancake:

User avatar
mccloed
100 W
100 W
Posts: 203
Joined: Nov 20, 2014 1:55 pm
Location: Garden Grove, CA

Re: Alibaba 50 dollars VESC worth it?

Post by mccloed » Aug 25, 2016 11:38 am

Got the VESC yesterday. First look: Looks cheap. I'm not sure what kind of DRV is normally used but this has the Texas instruments logo on it. They also used vedders capacitor pcb with the three capacitors. The phase wires are only 16 gauge and the power wires are 12 gauge. They heat shrinked it, so I had to cut out the USB and sensor wire connections. I connected it to my computer and a motor and it works fine. They used FW version 2.16 and HW version 4.12. Next step is to ride with it, which I'll try to do this weekend. I'll try to post pics up later today.
Last edited by mccloed on Aug 26, 2016 4:27 pm, edited 1 time in total.

rmrf
10 W
10 W
Posts: 92
Joined: Jul 06, 2015 2:39 pm

Re: Alibaba 50 dollars VESC worth it?

Post by rmrf » Aug 25, 2016 12:46 pm

mccloed wrote:I connected it to my computer and a motor and it works fine.
Image

artteth
10 mW
10 mW
Posts: 25
Joined: Jul 19, 2015 11:50 am

Re: Alibaba 50 dollars VESC worth it?

Post by artteth » Aug 25, 2016 6:12 pm

mccloed wrote:Got the VESC yesterday. First look: Looks cheap. I'm not sure what kind of DRV is normally used but this has the Texas instruments logo on it. They also used vedders capacitor pcb with the three capacitors. The phase wires are only 16 gauge and the power wires are 12 gauge. They heat shrinked it, so I had to cut out the USB and sensor wire connections. I connected it to my computer and a motor and it works fine. They used FW version 2.16 and HW version 4.16. Next step is to ride with it, which I'll try to do this weekend. I'll try to post pics up later today.
before ride look under microscope or lens on the drv legs
it can be many small solder junk
like this
looks ok but
Image
Image
Image
Image
if it like that you need to clean it or it will be short in drv and vesc will dead

User avatar
mccloed
100 W
100 W
Posts: 203
Joined: Nov 20, 2014 1:55 pm
Location: Garden Grove, CA

Re: Alibaba 50 dollars VESC worth it?

Post by mccloed » Aug 26, 2016 12:52 pm

Good call. I'll check before I ride. Here are some pictures:
IMG_2126.JPG
IMG_2126.JPG (101.39 KiB) Viewed 1789 times
IMG_2127.JPG
IMG_2127.JPG (107.32 KiB) Viewed 1789 times
IMG_2128.JPG
IMG_2128.JPG (107.32 KiB) Viewed 1789 times
IMG_2129.JPG
IMG_2129.JPG (89.06 KiB) Viewed 1789 times

artteth
10 mW
10 mW
Posts: 25
Joined: Jul 19, 2015 11:50 am

Re: Alibaba 50 dollars VESC worth it?

Post by artteth » Aug 26, 2016 2:55 pm

don't use foc on your vesc
you have missed sad caps (red)
and make photo or write what written on the shunts (blue)
Image
Image

User avatar
mccloed
100 W
100 W
Posts: 203
Joined: Nov 20, 2014 1:55 pm
Location: Garden Grove, CA

Re: Alibaba 50 dollars VESC worth it?

Post by mccloed » Aug 26, 2016 4:10 pm

Thanks for the heads up! Wasn't planning on using FOC, but now at least I wont blow them up if I decide to.

User avatar
mccloed
100 W
100 W
Posts: 203
Joined: Nov 20, 2014 1:55 pm
Location: Garden Grove, CA

Re: Alibaba 50 dollars VESC worth it?

Post by mccloed » Aug 26, 2016 4:26 pm

looks like the shunts say WSLP2726 .0005 OHMS 1% 1622

artteth
10 mW
10 mW
Posts: 25
Joined: Jul 19, 2015 11:50 am

Re: Alibaba 50 dollars VESC worth it?

Post by artteth » Aug 26, 2016 5:05 pm

mccloed wrote:looks like the shunts say WSLP2726 .0005 OHMS 1% 1622
ok
good
for this shunt you need special wrimfare for vesc for 0005 shunt

artteth
10 mW
10 mW
Posts: 25
Joined: Jul 19, 2015 11:50 am

Re: Alibaba 50 dollars VESC worth it?

Post by artteth » Aug 26, 2016 5:09 pm

artteth wrote:
mccloed wrote:looks like the shunts say WSLP2726 .0005 OHMS 1% 1622
ok
good
for this shunt you need special wrimfare for vesc for 0005 shunt
and you can try insane settings (my settings- motor 200 amps battery 70 amps absolute max 240)(if i set battery higher ill get abs over current fault sometimes (will try to reprogram to set bigger abs value (now in bldc tool 240 is max that you can type in the window)

User avatar
mccloed
100 W
100 W
Posts: 203
Joined: Nov 20, 2014 1:55 pm
Location: Garden Grove, CA

Re: Alibaba 50 dollars VESC worth it?

Post by mccloed » Aug 26, 2016 10:52 pm

So am I ok to use without sad caps as long as I don't run it in FOC? I have caps coming next week.

artteth
10 mW
10 mW
Posts: 25
Joined: Jul 19, 2015 11:50 am

Re: Alibaba 50 dollars VESC worth it?

Post by artteth » Aug 27, 2016 3:23 am

mccloed wrote:So am I ok to use without sad caps as long as I don't run it in FOC? I have caps coming next week.
mine vesc without sad caps too
try foc
didn't fry my vesc but tooooo many abs faults
if you will not use it in insane mode on the limits (like me) you can try
but same current settings and in foc i get faults sometimes but in bldc no faults at all
and buy (if you can) spare drv chips (for spare)

Ryuudan
100 mW
100 mW
Posts: 49
Joined: Apr 07, 2015 8:34 pm

Re: Alibaba 50 dollars VESC worth it?

Post by Ryuudan » Aug 27, 2016 6:39 am

@mccloed can you post here the link where you bought that VESC? so we can try same vendor or avoid it if something goes wrong.

User avatar
Ratking
10 kW
10 kW
Posts: 519
Joined: May 20, 2010 5:27 am
Location: Norway

Re: Alibaba 50 dollars VESC worth it?

Post by Ratking » Sep 05, 2016 9:14 am

mccloed wrote:So am I ok to use without sad caps as long as I don't run it in FOC? I have caps coming next week.

Do you have any wayt of logging temperature and current on the VESC? I would like to know how good it performs before I pay for three of them ;)

Post Reply