3 ms·
Misleading project description. Very much further down the page: > Cell balancing is not implemented. I know this is ironic, but because the cell balancing res
by ghostly_s 4y ago
Misleading project description. Very much further down the page:
> Cell balancing is not implemented. I know this is ironic, but because the cell balancing resistors aren't installed and Dyson used 1K resistors for the VCELL# connections, even if you shorted out the connections where the cell balancing resistors would go, which most people aren't going to do (and you'd have to cut some very fine traces on the V7 BMS PCBs), the cell balancing would be extremely slow through the 1K resistors.
So I guess the only use of this currently is reviving a dead battery pack.
- tinfever 4y agoI really wanted to add cell balancing but the PCBs are designed in way that it would require hardware modifications that I thought very few people would actually do, especially on the V7 models and up. I was also pretty burned out on this project by the end. I did add a way for you to at least monitor the cell balance level via LED blink codes so you know when the cells need to be manually rebalanced. You are correct that in the end, this project doesn't provide a ton of extra utility. Especially since another user from the EEVblog forum thread, dvd4me, found the EEPROM values you can reset to clear the permanent lockout on the original firmware.
- ghostly_s 4y agoThat's perfectly fine, I would just suggest re-writing your intro so it doesn't imply this project (currently) provides that.