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Agreed, that would be big. I was hoping maybe the Bluetooth module from the 100A would work on it since they seem to be the same (ish) looking product, but maybe that is saying they wouldn't. Good point.

For the JBD 150A 4s BMS threads I've seen recommended to use the 'alternate' connections where B+ is used and no balance leads are used on the first and last cell. For the 8s model all I have found on the JBD site is the original connection version: I really like the alternate version and...

Ok, finally found the thread I was referring to, was bugging me after having it up so long. https://diysolarforum.com/threads/jbd-150a-smart-bms.5855/ Wingnut is the member who suggested the alternate connection. Thank you Wingnut!

Thanks all, I did message them on Aliexpress inquiring about the bluetooth on that model and the slightly cryptic translated reply seems to indicate that bluetooth is not available. They pointed me right back to the JBD SP8S004 that has been featured on here instead. The model you mentioned...

Hello, I'm in the process of building an 8S 24V pack (8 EVE 280 cells) and was interested in the JBD 150A BMS but I'm confused a little as I see two models on AliExpress? What am I missing here? The first is the one discussed on here JBD SP8S004 8S 24v 150A BMS, longer and possibly less heat...

As always when you need something, I can't find it at the moment, it was back a month or two and I had it open forever. It just said that the poster had discovered that there was load current on the first balance wire and was better not to use one and then they added the B+ cable and didn't use...