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Care to share how you fixed the DYI battery to the frame? Is the 3D printed battery casing to protect it, or as a mean to fix it to the frame?

The Dengfu E10 does not use Bafang's batteries either

That is your m820's battery, isn't it?

I tried disconnecting the ribbon from the bms to no avail. But perhaps I could have waited longer than a couple of minutes. I ignore whether the bms has capacitors that can hold current for a while. I will try again for longer, perhaps a couple of hours. My bms is sort of branded, but its laser...

Thanks for the input Wayne. Out of all things that could be the culprit, I was hoping that it was not the battery.To be honest , I'm quite affraid of messing up with it, but a man has to do what a man has to do I guess. I'm not at all worried to calibrate the new controller, as my old one is...

Yes, that's the one. M510 FC2.0. Unfortunately, I don't have access to a bench power supply, or another E10 battery for that matters. That for sure would clarify a lot. Thanks for the tip. Can you clarify what connector are you referring to? Does this imply to disassembly the battery up to the...

The new controller did not fix the issue. I have run our of ideas...

It's been in use 2-3 times a week, at least a couple of hours each, 4k kms in a year. I would consider it medium use. No downtime prior it failing. Sorry but I could not understand your question about the torque sensor, but it hardly has anything to do with the problem anyway, since the issue is...

I have checked the battery harness and it´s conducting fine. If there´s an issue with the battery, like if the BMS is malfunctioning, I would be screwed. I´m right now crossing my fingers that the issue is in the controller. How else could I troubleshoot the battery then?

Thanks to both. I already pulled the trigger with a new controller on Ali @ 74 USD. I could not calibrate the motor since there's no battery feeding the controller, or perhaps better said, the controller is not receiving power from the battery. As I mentioned, one random time that the battery...

Unfortunately, my problem persists after replacing the connectors´ PCB, hence that was not the problem. So, I am left with 4 potential suspects: Display/Remote, Battery, Wiring and Controller. I´ve been troubleshooting the system to the extent of my knowledge. Following are my findings (I´m...

In your case, were they stuck inside, not making contact with the battery?

Thanks MrFixit, I checked them and they both were proning just fine.

You mean this one?

Thanks to both. Mission accomplished. Now let´s see what else Bafang has it for me...

Answering myself about the gasket: As you pointed out, what is sold in Ali is not the actual M510 gasket, close but not the same: Fortunately my original gasket is pristine (so far lol). I´m relief that after 4k kms the motor looks in pretty good shape and sufficiently lubricated. I have only...

Thanks again Wayne. Yeah, I noticed that the pcb is at the bottom of the motor, I guess it was designed by Murphy. Some time ago I bought the case gasket from Ali, supposedly is for the M510. Quite cheap. Is it not the right one? As for the drive side seal, is it this one? Or this other:

Thanks RustyIron, seems the way to go.

indeed, I've been loosen it to the right, which is precisely the direction of freewheeling, hence there's nothing impeding the thread to rotate along with the nut. That's the core of my dilema. On a side note: Can you share where you bought your tool? Mine is the original Bafang as far as I...

Hi, I am trying to take the motor apart, and as usual, there are hurdles in the way. This time is the spider locking nut, which is super tight. I have bafang´s official tool (which kinda sucks), but in order to loose the nut one has to apply the force in the same direction than the freewheel...