Old ones should work fine, this is to do with the latest v0.24/0.25 firmware/v0.9 changes.
Please send me a PM on the details of the issues you were seeing.
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Any of these jtag bms available? Anyone want to assemble some?
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You really do have to buy two at a time and have that second unit as a spare
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I’m not syched on the idea of needing a spare! Hoping these are one thing that won’t break
Dm’d @deucesdown
Really liking push to start switch m sending voltages to the phone. Hoping that switch doesn’t break
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What’s the issue? I got these because they are supposed to be bulletproof
Just signed up. Will I make it into this batch?
Yes , we are still waiting for Danny’s feedback of the new version.
Awesome, because I just signed up for a set as well
Awesome thanks.
+1
I just added myself to the list 
+1 Also just added myself to the list 
Is this still open?
Just read a couple posts up. 
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Hey did you sell the spare BMS you had?
Yup sold, only for hummie for allowing me to purchase his motors.
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Dude, how many motors do you have?? (Never enough)
Hi Guys, back from Chinese New Year holidays. Still waiting to hear from @JTAG so we can start. The problem is that the new v0.9 diebiems board can work with old firmware v0.16, but if we flashed the new firmware v0.24. The device is not starting up. We are trying to figure out if it is a hardware issue or firmware issue. Will keep you all posted.
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Samau, Can I withdraw from this please? I really do appreciate the efforts but I’m going to go a different route as I really want to get my board up and built.
Thanks
A (somewhat expensive) alternative that I have used before is using isolated DC-DC converters to charge the cells individually for active balancing, but that requires some shenanigans or a 2nd battery