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Old 05-22-2019, 10:20 AM   #7
Sergio
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Join Date: Sep 2012
Location: Charlotte, NC
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Default Re: ZEVA error code "No comms to charger”

No those settings are OK.

You do not want your balancing voltage lower than the "Max Charging Voltage" / "Number of cells" value rounded UP or you could have too many shunts active at the same time which at the very least is inefficient.

Ideally there is enough "head room" between where the charger voltage finishes and the actual maximum cell voltage to allow for the balancing circuit to work and it the case of a Sepex cart to allow Regen brake even on a fully charged pack.

I am guessing the issue may be charger regulation of the 57v, perhaps as a test You could lower the charging voltage to 56v, leave all of the other settings in place and see where the cell voltages are once the charger shuts OFF by itself.
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