Capacitance balancing BMS connection

[gge5]

Spacey,
Has EV Assemble replied to your PayPal dispute? I haven't heard anything from them and it's been nearly a week.

Remember that you have to escalate the dispute after a reasonable amount of time, or PayPal will assume it has been resolved and close your dispute! I think it's a two or three week window.

 

[Spacey]

Already escalated the claim, have not heard from him for over 2 weeks. Last time I had to do a paypal claim to get his attention since my quick delivery was taking months! Funny how as soon as I did the first claim I got a reply. This time I care not for anything he has to offer, his service is terrible and I want nothing more to do with him.

I pride myself on integrity and honesty, I just wish certain others followed the same rules.

 

[eva-michael]

Hello gge5

below Email attachment from gge5
Wrong instrument which we dont know where he get. And also do not let us know.
The sensor wires are in wrong order in below
Wrong, please dont download this

Not as per our instrument. More than one sensor wire connect to cell negative.
only cell negative as batter pack negative should connect to 0 sensor wire.

We dont know how you can connect them right with wrong instument which is not sent by us. We have bit doubt which you never answer us.
Second you should connect as per our instrument, difference may cause wrong connection or easy to cause mistake in connection.

Please only use official instrument from us.
Right now everyone can find them just open the page of every bms in our website http://www.evassemble.com

 

[Spacey]

Michael....funny how you show up when someone posts up a bad review of you on here!

I have asked you time and time again to check the wiring that I sent you. At least 3 times I sent you a request to check my simple wiring diagram. Not once did you answer the question.

My last email to you even had a page full of the words "Send me the wiring diagram"....you did not reply. As a company you suck, you are nothing but a box shifter and I shall not be doing business with you again. Every single one of your BMS have broke, funnily enough another brand (of which I bought 2) have worked perfectly. Whilst you were not helping me with your dodgy BMS's you were quite happy to reply to emails from another member of this forum.

Your chargers are wired for Lipo and not wired to bleed charge Lifepo4, I was alerted to this by a member on here and did my own tests. I even emailed you a lengthy description of the problem and the solution....but no answer to that. Michael I do not trust you and want a refund for this crappy capacitor based BMS, you could do the gentleman thing and actually post here for me now the correct wiring diagram. Please read again my emails below for how I wired up the capacitor BMS just in case you decided NOT to even read all my emails pleading for you to check my wiring.

I have spent a lot of money with you and I also had customers waiting being held up by the BMS's not working, two customers got their Christmas presents LATE due to your product and lack of help. If I have messed up the BMS I shall apologise in front of everyone here, but your lack of communication is terrible as are your terribly built battery products....sensor wires fall off when held on to cells with tape!


Here are 3 of the last emails I sent to you: (if people think I was being rude then I can assure you that I was totally civil up to the point where it was getting a joke with me asking for the wiring diagram and Michael deflecting the issue email after email, I lost about £200 because of this latest ordeal).

Michael,

I am a very very unhappy man!

The AE-LMD17 REV A1 16 cell BMS balanced the pack fine whilst charging, although the highest cell hit 4.1v for a long time! !!!added not: found out a few days ago that it balanced to 3.2 volts but on further single cell charge with Turnigy charger one of the cells was 4ah below the others!!

But.....It does not bloody work!! It worked for about 6 mins then not even enough power to light the Cycle Analyst. Voltage on "OUT-" is 51.7volts but voltage from battery is 53.8Volts, but if you attach any load to the "OUT-" on the BMS it just turns off!

I have wired the cells as below: Have checked volts on BMS Sensor wire from 0 to 16.

BMS Sensor 0: is wired to Cell 1 Negative
BMS Sensor 1: is wired to Cell 1 Positive 3.3V
BMS Sensor 2: is wired to Cell 2 Positive 6.6V
BMS Sensor 3: is wired to Cell 3 Positive 9.9V
BMS Sensor 4: is wired to Cell 4 Positive 13.2V.......

all the way up to ......

BMS Sensor 16: is wired to Cell 16 Positive 53.8Volts

Is the above the Correct wiring because something is not correct!

B- on the BMS is wired to Battery Pack Negative (Cell 1)
OUT- on the BMS is wired to Negative Load/controller out i.e Infineon controllerÂ
P- on the BMS is wired to Negative Charge in from Charger

What am I doing wrong? This is the 3rd BMS to go bad, the first two are AE-LBB16 REV A1 Â they do exactly the same!

The BMS from my Headway pack works just fine so does my Ping Signal Lab BMS, what is wrong with these 3 BMS's. Unless I have done something wrong I will be sending them back.

The capacitor BMS worked for a few mins, disconnected the controller (BMS still all wired up) then reconnected controller and nothing. There is a 2Volt difference between "OUT-" and "B-"

Please check that my connections are correct.

Michael I am starting to get annoyed now....

Do you even read ALL of my email or just part of it?

Yes you sent me a diagram on the 3rd Sept and YES that is how I have wired up the BMS. If you had read ALL of my last few emails and actually looked at my wiring notes then you would have noticed that is how I have wired up the BMS!


Please read maybe this time and check if correct (for the 3rd time I ask):

I have wired the cells as below: Have checked volts on BMS Sensor wire from 0 to 16.
BMS Sensor 0: is wired to Cell 1 Negative
BMS Sensor 1: is wired to Cell 1 Positive 3.3V
BMS Sensor 2: is wired to Cell 2 Positive 6.6V
BMS Sensor 3: is wired to Cell 3 Positive 9.9V
BMS Sensor 4: is wired to Cell 4 Positive 13.2V.......

all the way up to ......

BMS Sensor 16: is wired to Cell 16 Positive 53.8Volts

Voltages were checked on BMS with volt meter to be correct, from sensor 0 = negative terminal and then from sensor 1 = 3.3volts, 2 = 6.6volts continuing all the way in increments of 3.3v up until sensor 16 = 53.8volts.

You also say that you posted me the instructions for the capacitor BMS on the 3rd Sept.....I had not ordered the capacitor BMS until 14th Nov 2010 so how could you have sent me this BMS instructions in the past?

Send me THE CORRECT wiring instructions for the CAPACITOR BMS

Send me THE CORRECT wiring instructions for the CAPACITOR BMS

Send me THE CORRECT wiring instructions for the CAPACITOR BMS

Send me THE CORRECT wiring instructions for the CAPACITOR BMS

Send me THE CORRECT wiring instructions for the CAPACITOR BMS!!!!

 

[Spacey]

Funny how this: http://www.evassemble.com/download/BMS/Capacitor%20BMS%20Connection%20diagram.pdf just suddenly appeared on your website?

Pretty damn sure this is how I wired it up....pretty damn sure I asked you to confirm my wiring how many times?

 

[gge5]

Wrong instrument which we dont know where he get. And also do not let us know.
The sensor wires are in wrong order in below

Wrong, please dont download this

I ignored the picture that is upside-down because there is no reference point to the rest of the board. Naturally, I used the schematic drawing which shows that the negative-most connection goes on the side of the board with the B- lug connection. I wired it properly.

Not as per our instrument. More than one sensor wire connect to cell negative.
only cell negative as batter pack negative should connect to 0 sensor wire.

Does your own wiring diagram not show two wires from the negative side? The brown wire goes to the BMS's B-, and the red wire goes to sense-. In addition, you can clearly see that there is only one red wire going to each bus bar. On the positive side of the pack there are two blue wires in addition to the one red sense wire: one goes to the positive load, the other goes to the positive of the charger. Neither go to the BMS. I wired it absolutely correctly. How are you confused about this?

We dont know how you can connect them right with wrong instument which is not sent by us. We have bit doubt which you never answer us.
Second you should connect as per our instrument, difference may cause wrong connection or easy to cause mistake in connection.

Clearly, my photo refutes any evidence of mis-wiring on my part. I understand you don't want to give me a refund, and are trying to obfuscate the facts. If not you, hopefully the PayPal claims department is able to see that the wiring was correct from the beginning. I am still waiting on a refund.

Please only use official instrument from us.
Right now everyone can find them just open the page of every bms in our website http://www.evassemble.com

Nice how you added the documentation after-the-fact. Still, it would not have made any difference in my wiring, as it was correct in the first place.

 

[Spacey]

Exactly the same here, all my BMS that have gone wrong from evassemble were wired correctly. They knew as well as I had documented my wiring many times with no comment from them on my wiring even though I asked for it to be checked just to confirm.

They clearly only added that link after I moaned on here about their terrible service, even then like yourself I wired up my BMS correctly. I just hope anyone reading this spends their money elsewhere.

Regardless of the outcome from Paypal, it's always good to know that you are covered buy paying with credit card.

 

[gge5]

Have you had any progress on your PayPal claim, Spacey? There hasn't been any action on my dispute at all, although PayPal says, "We'll contact you with any developments or if we require additional information from you by Jan 31, 2011." We're a few weeks past that deadline now...

 

[neptronix]

I've also had a Goodrum-Fechter BMS go bad on my motorcycle, bringing two cells to 0V and killing them completely. At this point I'm starting to agree with Jack Rickard - an active BMS is a bad thing.

mmmhmm..
So many threads about dead BMSes on here. They seem to last a year, if that.

I thought Jack Rickard was a nut when i saw his videos. It didn't make any sense until i found myself doing exactly what he's doing with my lipo.

 

[piwhy]

Have you had any progress on your PayPal claim, Spacey? There hasn't been any action on my dispute at all, although PayPal says, "We'll contact you with any developments or if we require additional information from you by Jan 31, 2011." We're a few weeks past that deadline now...

As for me, I didn't solved my problem.
My BMS still don't works.
Michael asked me to send him back the BMS to find the problem, but the shipping costs are at my charge and I really doubt that he will find the problem.
I'm afraid that I will pay 35$ more for nothing...
It's his words against mine...
Really, I don't know how to pull through this swindling ?!

 

[leonardo]

I see a lot of negative postings about the seller here. This thread is about connecting the BMS type AE-LMD17 REV A1, isn't it?
So, If anyone is still interested in how to connect this BMS, here is an interesting link.
The right connection scheme is there too.
http://www.avdweb.nl/solar-bike/electronics/bms-ae-lmd17-rev-a1.html