Bike not turning on. Seemingly ignoring battery input.

[Marcus_E]

Hello all,
In the continuing adventures of my bike not working, the bike is now ignoring battery input.

Here is thread 1 of my issues: http://endless-sphere.com/forums/viewtopic.php?f=2&t=67917
This issue seemed to be caused by a faulty connection but could be part of the current problem.

This is the second of my issues: http://endless-sphere.com/forums/viewtopic.php?f=2&t=68886#p1038905
It was never resolved. I replaced the BMS on my battery and it is reading full voltage (~80) from all the tests I thought to do but if there is something specific to check please suggest it!

Now the controller seems to have no input(doesn't light up or anything) even when plugged into the battery with seemingly full power. I am pretty lost at what to try next besides purchasing a new controller to test that and if that can be at all avoided that would be great.

So any idea what to try to fix the bike? The issues is not necessarily with the controller but it seems the most likely. I have not opened it up to check anything but that might have to be the next step. I don’t know what I would be looking for if I were to do that though.

Thanks!

 

[Nobuo]

Is there a change in the voltage battery when you plug it into the controller?, if the voltage doesn't change and it keeps between the controller range, the battery has nothing to do with it

 

[Marcus_E]

When pluged in and turned "on" the voltage across the battery does vary slightly by .1 v, or so.

 

[Nobuo]

then your controller / display is what is not working good. Where is the switch on light indicator of your controller?

 

[999zip999]

What controller are you using ?

 

[dnmun]

why do you refuse to post up pictures of the battery and BMS? this is the third thread you have started and there is not enuff info on any of them to use to help you. we still have not seen a picture of the BMS or measurements of the cell voltages yet. there is no way to help without information.

 

[Marcus_E]

The light/switch is on the top of my controller. As has been requested here are pictures of the top and side of the controller. Sorry about not providing photos earlier.

Top: http://i.imgur.com/DydvCor.jpg
Side: http://i.imgur.com/LvGrk6j.jpg

I am using this controller: http://www.ebikes.ca/shop/ebike-parts/controllers/c7240-nc.html

Here is the BMS: http://i.imgur.com/OqqVHBq.jpg < This was replaced, by me, a few days ago so I highly doubt that it is causing the issues. But still not impossible.
Battery Side: http://i.imgur.com/lQRaCVt.jpg

What cell measurements would you like? If I test the voltage across each cell it goes up incrementally to the expected voltage of 83.7.

Voltage from battery output: http://i.imgur.com/u8ATlIe.jpg

Previously I was hesitant about destroying the outer shell of my battery as I have no way of repairing it. It was sealed in vacuum/heat shrink plastic. At this point I have taken that apart so now photos and exact voltage readings are no problem. If there is something that may be relevant please direct me to it.

 

[denver commuter]

On my Lyen controller there was an ignition wire (just a plain red wire by itself) that had to be hooked up to the battery. Perhaps your controller has an "ignition" wire?

 

[dnmun]

it has a switch on the end for the controller circuit current.

why did you replace the BMS on the battery? what did you do to test the BMS before replacing it? if the voltage across one cell is below the LVC then the BMS would be turned off. if one of the sense wires was disconnected it would cause the BMS to turn off.

if the battery is far outa balance then it will be hard to make it store charge before it hits the HVC. you would expect the cell voltages to increase from one end of the pack to the top but knowing what the actual voltages is for each cell is what is critical.