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I am looking for a safe source to buy new 36v batteries. Any reccomendations?

I like that no wire bms board!

Very Interesting read. Thank you. I just wish there was a reputable company out there that leased the batterys and who would take care of all the technicalites. Maybe that would improve safety for everybody and let us all get on with enjoying getting out and about on our bikes!

Thanks for pointing that out. As this was my first and only battery build, I have learned that the cheap BMS boards rarely have a balance function. Knowing what I know now, I would certainly not have used a cheap BMS such as this. I find these battery packs both Intriguing and scary at the same...

Good point. I will contact Cell Supply and ask that very question! If I did it again, and I will not. I would buy new stock. I feel strongly that there should be restrictions on who can buy these cells!! In fact, If I could I would go so far as to ban all youtube video's promoting the building...

It did cross my mind. I have been thinking of getting a semi pro 3d printer to compliment my laser cutter for doing such as that!

I have used two different meters and both show the same 41.2

I am currently waiting for ptfe cable to arrive then I will strip down the battery to replace the silicone wiring for my own peace of mind. When I do that I will check tbe cell groups and if need be connect my balance 100 10s that can balance at 1amp. They now have an all in one unit that is...

I have no idea. As the bms does not have a switch, I assume it is always on. DEWIN Lithium Battery Protection Board,10S 36V 30A Lithium Battery Protection Board Li-ion Cell BMS PCB Support Overcharge Protection https://amzn.eu/d/isK2fBf...

So I have done some runs with this new battery mostly on the Canal paths with 3 sometimes 4 setting of the five available. It cuts out charging at 41.2v so must not be fully balanced or the BMS is not quite right. So far I have accumulated 50 miles and is now at 36.2v. What is the best voltage...

Thanks for that. I might go that route if I can be bothered running the cable up there to the handlebars.

It would be nice to be able to see what power I am pulling through the motor but my display is a basic DM03. I dont really want anything fancy but would like to see Amps and Watts readings. Any Idea's?

Thanks for the info. I will try to get the lead and software.

So I guess I am to assume that this is normal!

I have the sensors connected to my mechanical brakes. I am talking about if you stop pedalling to coast along without applying brakes

When I stop pedaling there is a slight run on from the motor. Probably only about an eigth of a turn at the crank but it is rather annoying. Is there any way to overcome this?

That makes sense. But after reading lots of reviews online I had come to the conclusion that the majority of bms used in commercialy available battery packs are not very effective at actually balancing the pack and that active balance add in modules make up for this shortfall. I assume however...

Cannot speak for anybody else, but In my case it would stem from having flown radio control model planes and using lipo batterys. They always come with balance leads built directly into the battery for anything over 1S and is super important that those lipo cells are balanced correctly or they...

How much safer are Lifepo4 cells? I am seriously thinking about dumping both my packs and getting those instead

Which has me thinking even further in depth about adding fuses on all outs from the battery terminals and between each cell group just for safetys sake. Was thinking glass fuses and soldering directly to that and heat shrink. Surely then if any condutors in the wiring were to short then it would...