john61ct said:So cheap!
Open it up and look for a pot adjustment.
maccoa said:Hello.
I wanted to calibrate my smartbms (antbms), it shows me 57.7v while in reality I have 57.9v.
I cannot change "Total Voltage Reference Value" which is set to 3000N
is there a tip?
similarly I don't understand too much to limit the charge to 4.1V, I can't lower the voltage of my charger.
I tried to set totalvoltage Highprotect to 65.6v, once this voltage reaches, the charger turns off and on all the time.
my pack is a 6P16S 15Ah (67.2V at 4.2V).
Thanks for your help
Totally agree. 57.7 or 57.9 doesn't matter at all. Voltage sag will be much more and difference in SOC is minimal within 200mV.eee291 said:maccoa said:Hello.
I wanted to calibrate my smartbms (antbms), it shows me 57.7v while in reality I have 57.9v.
I cannot change "Total Voltage Reference Value" which is set to 3000N
is there a tip?
similarly I don't understand too much to limit the charge to 4.1V, I can't lower the voltage of my charger.
I tried to set totalvoltage Highprotect to 65.6v, once this voltage reaches, the charger turns off and on all the time.
my pack is a 6P16S 15Ah (67.2V at 4.2V).
Thanks for your help
It's not that big of a deal, off by only 0.3%
I doubt you'll get any closer to 0%
Excellent, thank you.quamau said:Yes, they do. Once you have a reliable source for good measurement, you can easily calibrate each cell (parallel string) individually via the PC software. AFAICT, this is not yet doable via the phone app.
john61ct said:Anyone see any problems with that approach?
john61ct said:Even a DMM costing many hundreds must be regularly calibrated.
The benefit is knowing it is not just precise, but accurate.
If accurate voltage is not important to you, then don't spend the extra.
Can you be more specific? link?agniusm said:Got 4S 120A version of this
john61ct said:Can you be more specific? link?agniusm said:Got 4S 120A version of this
So many different versions discussed in the thread