this TB batter (website says 60A discharge BMS)
TB 4.12 VESCs
2 maytech 6374 190KV
settings in ACK are:
Hm not the current, the battery cutoff settings?
Do you know if youâre battery voltage is balanced across the cells? If it sags, thatâs usually an indicator of that.
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hmm I canât remember exactly, itâs whatever ack chooses automatically when you choose 12S at this part of input wizard
I followed mmanerâs guide to a T in setting this upL
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Iâm not sure honestly, I figured some sag was normal. Is there a way to check voltages of groups without tearing into the battery?
Oh but you set it to 10s there, not 12s. Your vesc cut is probably below the BMS cut, so itâs just shutting off your battery because itâs too low
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sorry, no i did set it to 12S I just copied that image from the guide that has it set to 10s, my bad
You would have to open it. 
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On Ackmaniac you have to apply twice to my knowledge on that partâŚ
@whaddys See https://www.youtube.com/watch?v=N8xQJ2NLQIA This could be an older video but itâs fairly similar.
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hmm Iâll go under and read the settings on the VESCs to make sure
Double check and report back what the settings read now. Either way, your esc shouldâve stopped you after itâs below a certain value, not 29.5 for sure
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how does it âstop youâ exactly when LVC is triggered? Does cut the power off?
When you hit the first number, it should reduce throttle to let you know youâre near low voltage and also reduces voltage sag past critical, if you keep going, it will eventually just stop the board from moving when hard cutoff is hit⌠You can blow through soft cut straight to hard cut if youâre lowish on battery and slam full throttle
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For one, youâre on vesc 4.12 hardware, running 12S and 190kv= erpm around 57000. Iâm no expert here, but this is definitely a bad combo. The reboot is concerning.
For the repeat cut out, if itâs not the vesc, make sure the motor temps are true. After that itâs everything from anti spark switches, BMS, cold solder joints etc
If the max erpm limit is set near 60k, you may have hit it.
After seeing your most recent reading at 29 volts, youâre well below the min Voltage cutout and thatâs definitely youâre issue. Sag. Youâre cutout should be starting at 3.0x12S as a minimum anyways. Set the soft cutout higher. Iâd correct these immediately
I donât think itâs uncommon for people to run this combo is it?
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Not that uncommon. It is close to the max erpm, but that really only applies on a fullish chargeâŚ
Your final voltage cut is 33.6 but you pulled a 29.5? How?
Did you charge your board yet? Can you verify battery voltage with a multimeter?
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190 is usually considered in the safe territory for that hardware for sure at 10S at 12S it will probably work but getting up near the 60V limit on some of the components (believe DRV and MOSFETs). So a spike in voltage because of current rushing in or out of things could put components above their voltage limits for dangerous amounts of time. If no faults in the data/logs though not sure really aside from LVC like others have said. I always run conservative cut offs but mostly donât want to damage expensive battery and want to get most cycles I can out of it.
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