u/Successful-Sweet1916

I have a s3, it can still sometimes still drive a few hundred meters, but then a ship symbol appears and then Error 42. Sometimes there isn't any response from the bike at all. So maybe a cartridge defect, broken KickLock or the wiring harness what do y'all think?

I had two broken VanMoof s3 batteries, both with Error 20, 6 and 17. I checked the cells, replaced them on one of the batteries, tested the fuse, which was broken, replaced it but it still showed Error 6. So I bought a USB to UART adapter and ran a GitHub script with putty. In the terminal, I deleted the deleted the error memory of the BMS and shorted TST and GND and voilá, it showed me the full output of 40v on the discharge ports. So now, both batteries are fully working again. If you have any questions or need help, just send me a dm and I will try to help you as best as I can. I am located in Münster, Germany

I repair S3's for friends and sometimes buy used broken ones and fix them up to resell them again, I am pretty good with fixing batteries, but many bikes have shifting issues. So, now I have like 3 broken e shifters, is there any way to diagnose them (heard of a GitHub project via UART) and get the board, if it's the issue, working again? And what do you guys think about revotronics, what is different about their boards, that they can claim its more reliable? thx

I had a deeply discharged battery, changed the whole cellpack, still showed me Err20, 6,17. I resoldered a new fuse, still the same Errors. Any ideas? Should I try to charge it?

I had a S3 battery which was deep discharged. I changed the cells and soldered the new ones to the BMS. Now, the cartridge is giving out Err20, 6 and 17. I already did multiple resets on the BMS via RST and GND and also Cartridge Resets. What could I try next?

I have a VanMoof s3 (Bike) with a dead battery and a lab charger. Before I try to charge it up manually, is there a way to test the individual cells? How would I do that, I am more at the beginning of my "electronic journal" but I want to try and understand it. Thanks

My s3 battery is deep discharged after it being stored for a few months. Now I want to charge it up via the discharge ports with a lab charger device. I would do it outside and watch it the whole time, but I heard some people saying it's really dangerous. I don't really have to lose anything more than a dead battery. But just to be sure, I read about checking the individual cells. How exactly would I do that? Thanks