by cut out you mean flashing battery symbol on display/controller?
You see front battery electronics /BMS/ were designed to monitor 30 Nickel cells in group of 5 .
So BMS monitored 6 voltages of 6 modules/5 cells each/.
If any of those voltages fell below programmed treshold main chip PIC18 ordered LVC
tell me, reading from Cycle Analyst - what is your Ah use, Whours use on those average 20 miles ?
Have you seen 37V on CA ?
20 miles can be a lot of or it can be not much.
We monitor in our conversions only 2 voltages , 2 inputs into BMS not 6 , you might have weak cell, even weakest cell monitored by BMS.
You see this one weak cell can trigger LVC.
I am pretty sure your EPLUS BMS works fine.
There is another thing, we know that BMS does Columb count to display very accurate SOCharge.
I suspected this count is used for LVC trigger once say 9Ah registered.
But it cannot be the case , I used over 10Ah many times - never more than 15Ah.
So it is all about monitoring cell voltages.
tell me what was your Ah use?