KIT I BOUGHT ON EBAY DOESN'T WORK!!!!

3

327ren

1 mW
Joined
Apr 9, 2014
Messages
18
Location
Brooklyn, NY
I bought a 48 volt 1000 watt conversion kit on ebay - my fourth, yes FOURTH one. Only the first one worked for a few months, then went kaput and nobody could fix it, so I bought another one on ebay to replace it. That, and the next two kits DID NOT WORK.

Why is this a recurring problem? I was using a lithium ion battery. Are these kits only for SLA? Turbo Bob is useless, his only advice is check the wiring and buy stateside. DUH! I need answers, not that!

Does anyone here fix stuff like this? PLEASE HELP!
 
Anything can be fixed, but you have to go about it in the right way. First, you should take advantage of the wealth of information already covered here in previous threads, simply by searching the forum for references to the same type hardware that you're having problems with. Chances are, someone has already had the same problem that you had and come up with a solution.

After that, post your request for assistance with a good description of the equipment and the problem, along with some good pictures. If you've accumulated a lot of nonworking equipment it's still not a total loss, as it still has some value. You could always post it for sale in that sub-forum.
 
First of all, You should post your general location (in your member profile).

Then, as AX57 said, we would need to know LOTS of precise details before anyone can begin to help you troubleshoot.
 
First thing to remember is that "Doesn't work" probably only applies to ONE part. To what extent are the 3 defective groups compatible with the one working bike? Can you hook up the other motors to the controller you know works to test them? The throttles? You would then need to try out the controllers with the one motor and throttle you know to be good. Single variable in each test.

So I've tested "Defective" equipment this way for people and found everything worked. Sometimes there was just some little misconnection, etc., getting them too upset to follow through with troubleshooting.

And if they ARE compatible with each other, that's the kind of info we need to hear to suggest things.
 
327ren said:
I bought a 48 volt 1000 watt conversion kit on ebay - my fourth, yes FOURTH one. Only the first one worked for a few months, then went kaput and nobody could fix it, so I bought another one on ebay to replace it. That, and the next two kits DID NOT WORK.

Why is this a recurring problem? I was using a lithium ion battery. Are these kits only for SLA? Turbo Bob is useless, his only advice is check the wiring and buy stateside. DUH! I need answers, not that!

Does anyone here fix stuff like this? PLEASE HELP!
Click to expand...

327ren,

This is not a forum where people arrive and can ask on their first post.. How can i solve that &?%&*?% thing... :roll:

At least we would apprecaite if you could adopt a more welcoming attitude and we will welcome you here with pleasure.

Who you are? from who you are? a bit of description of yourself etc.. simple

Thanks for your comprehension.

Doc
 
It's not common for kits not to work if they're proprrly wired up and are compatible. I would say that 90% of cases where they didn't work was because the ignition wire wasn't connected correctly.
 
Well, he's pretty frustrated for sure. Did you pay money for all four kits? I sure hope not.

Step one is investigate your battery. One obvious possibility is the first kit stopped working because the battery is not so great now. It could be as simple as that, all the kits won't work because of the low voltage cutoff of a 48v kit.

So look at that first, using a cheap digital voltmeter. (DVM) Sometimes free at harbor freight.

Next step, get a motor controller throttle tester. Cheap on Ebay. It's a timesaver.

You can do simple tests with just a voltmeter though. If your controller is connected to the battery, and you don't see any voltage to the throttle, it's not turning on. Same thing with the black and red wires to the halls. You should see 5v on that red wire, with the black voltmeter probe on the black wire.

SURELY, in 4 kits, you have one motor, one controller, one throttle, and one display that works. Find motor controller and throttle that seem to test good, and then try different displays with that combo.
 
The post strikes me as odd. First of all, who keeps buying bad kits, without seller correspondence or recompensation etc. -4 kits? That's alot of milkmoney.

And then there's the nature of the post, which appears the person didn't search AT ALL, and there was no intruduction and no info.

Really, maybe a mod should remove the posts like this as spam, and pm the new member a link to forum etiquette/ how to search.

I digress- Ren, if you really want help, heed the good info people have shared above. Good luck!
 
The dude wrote the topic title in all caps and didn't give enough info or pics for anyone to be able to help him not to mention he's not replying back. And buying 4 whole kits without having the first few checked out by a local pro seems odd and like a big waste of money.
 
Some people can’t sharpen a Pencil, it’s not the Pencil’s fault…
 
="Doctorbass"
327ren,

This is not a forum where people arrive and can ask on their first post.. How can i solve that &?%&*?% thing... :roll:
At least we would apprecaite if you could adopt a more welcoming attitude and we will welcome you here with pleasure.
Who you are? from who you are? a bit of description of yourself etc.. simple
Thanks for your comprehension.
Doc
Click to expand...
The guy DEMANDED we help him fix it, and he has given us nothing to work with so I dare say everyone put a pot of coffee on and do an all nighter on this thread until we get his kit working!

Or lets just perm ban him and firewall his IP so he can never visit this site again for bad netiquette, either way is good with me.

I dare say he got at least 1 kit for free with paypal dispute system, I wouldn't be surprised if all the kits worked just not wired up right.
 
If your not willing to learn the basics yourself.. a kit isn't the route for you. Stash your nuts and get a turnkey setup if pointing fingers is your style... You'd be surprised how far you can go with electrical tape, a cheap multi meter, and Ohm's law :roll:

All the info you need is on this site... Get your own spoon..
Good luck
 
Given that he posted at midnight, perhaps it was a PUI. If so, and if he's read these replies, he could always abandon that user ID, create another, and ask for help again with a fresh approach.
 
..buy from a real vendor next time. Some of those eBay sellers are on the same level as the worst of china-based, chinese kit sellers.

What kit was it?
 
https://turbobobbicycleblog.wordpress.com/category/e-bike-test-reviews/

I wondered who the hell turbo bob was.

Seriously, if possible, would a moderator intercept help this type of situation at all?
I mean, spammers can't be ruled out easily with the use of vpn's etc. And people that are oblivious could use a little guidance before they're 'released' into the 'wild' :lol:

I feel a bit sorry for the person if they're real, and like we were punked if they weren't.
 
We don't moderate these (if you mean like removing them) because we'd be removing every noob that shows up. ;)


If you poke around at the various 1-post-wonders you'll find quite a lot of them post their problem in some totally unhelpable way, then never come back (whether they get a reply or not). Some will post their problem in several unrelated threads, and those we'll move out of the threads and merge into their own question thread, but they still usually don't come back to check it. Most of these people have never even logged back in since their original post(s), if you look at their profiles. (including the OP of this thread).


Unfortunately this, along with other members that create new threads for the same things that have been discussed before that already have the answers they need right there, clog up the forums with a lot of stuff that makes it harder for people to find answers when searching, but there is nothing we can do about that, either (short of just deleting everything noobs post until they learn better).



Several ways to help with this have been proposed but nothing has been done yet, for various technical reasons, AFAIK.
 
Thanks Amberwolf, I can understand that. I thought the brand-news and the spam filtered by mods would make the new and our experiences better (by deleting obvious spam and removing/linking to stickies for the clueless to almost protect them in a way), but running all new posters thru the mod's possibly isn't reasonable. No worries, I just wonder who they were, I don't want em to go away unhelped if they weren't spam (which is easily possible with vpn yes?)
 
Oh, the spammers I keep a sharp eye on. Most of them I can spot even before they post something, based on experience with patterns in how they create accounts, etc.

Others are easy to spot once they post.

Some are tougher cuz they look normal, then they come back and edit their posts into spam / links, and that's part of where others reporting posts they suspect as spam is useful.

In this case, there's no spam in the OP's post or profile to worry about. Just completely insufficient info to help them, and a fairly obvious lack of poking around the forums to see how to help themselves.


FWIW, I've been to other forums about variuos subjects where the rules include some pretty extreme posting restrictions for new people, and can result in banning if you don't do exactly what they say before you ask a question or don't ask it exactly like they tell you to. Even those that don't ban will just delete everything you post until you do it "right", including any topic that has already been covered.

While that would certainly help people find stuff easier, it is a lot of work to moderate.
 
One of the key features that makes this forum so great, is a light touch on moderation. We tolerate a lot, provided it doesn't get personal, x rated, or blatantly racist.

This guy was not spam, but PUI sounds quite likely. If you do come back and read this dude, I will help you identify which kit parts you currently have are functional, and which are not.

Starting with the battery you killed :roll: .
 
327ren said:
I bought a 48 volt 1000 watt conversion kit on ebay - my fourth, yes FOURTH one. Only the first one worked for a few months, then went kaput and nobody could fix it, so I bought another one on ebay to replace it. That, and the next two kits DID NOT WORK.

Why is this a recurring problem? I was using a lithium ion battery. Are these kits only for SLA? Turbo Bob is useless, his only advice is check the wiring and buy stateside. DUH! I need answers, not that!

Does anyone here fix stuff like this? PLEASE HELP!
Click to expand...

I purchased a used mongoose bicycle http://www.walmart.com/ip/26-Mongoose-Ledge-2.1-Men-s-Mountain-Bike/26999421
that had been fitted with this generic 1000W 48V ebike kit. http://www.amazon.com/Motorize-1000w-Electric-Bicycle-Conversion/dp/8805001546
The bike came with 4 SLA batteries http://www.amazon.com/UB12120-12V-12AH-BATTERY-VOLT/dp/B007QW7T2M/ref=pd_bxgy_468_text_y
that could not hold a charge, so he gave me a discount and I took it home and tested it with this http://www.amazon.com/Bhbuy-Electro-Scooter-Brushless-Controller/dp/B00MIONYH2
and the hub motor is working, the reason for the failure was that the three phase wires were melted together.
I need to test the controller http://www.amazon.com/Sunwin-Electric-Bicycle-Brushless-Controller/dp/B00DBM0WFC
but lack a 48V battery needed to power up the controller.
I purchased a 48V:3A power supply http://www.dx.com/p/s-150-48-48v-3a-switching-power-supply-silver-283751#.VW4hbM9VhBc and connected it to the controller.
I pulled the throttle back slightly and the wheel turned.
This should be enough information for you to determine what components are not functional.
 
How do you know?

The OP hasn't even logged in since the minute of posting the thread.

At a guess, it could be the same person as here:
http://motorbicycling.com/member.php?u=37971
but that person hasn't been back there since 2013, or posted since 2012, and stopped responding to the thread he made there, too, but after several posts rather than one.
 
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