Don't forget about your card payment charges and taxes if you opt for a refund—what a waste of money. Hanzkor (the seller) refused to acknowledge the problem with the balancer and blamed my battery pack, wiring, connection, etc. However, I have more battery packs than he thinks and informed him of this. It is impossible for all six of my different battery packs to exhibit the same issue.Yes, I have similar thoughts about returning the device. I received message from seller, that I had to pay postage and once they received it, they would provide refund. Then I would have no device and no refund I believe.
So like you, I will make something to monitor capacitor voltages and discharge as required. I have just ordered some 1 ohm 10 watt resistors for this task.
I checked my device yesterday and it has the SW-1.1.1 software version.
Maybe we can discuss the solution?
First I was thinking about an ESP (with deepsleep for power save) with measurement and relais or transistor as switch for a resistor. But a mosfet with a gate from 2.6V or 2.7V (upwards) with a resistor might be much simpler and probably far less power consuming. Problem with a mosfet is a constant very small leak in the voltages when the gate should be closed (that I guess causes our current problem...) This is however only an issue when balancing, since the current now leaking into the cap's will be lost anyway if they reach over 2.7V.
What kind of solution are you thinking of?
Mine is more toward a manual and analog style. I set up a disconnect switch for the B0 wire and crudely soldered a few switches and wires to all the supercapacitors, connecting them to a few old 3V and 5V incandescent bulbs (from old flashlights). Whenever the beeping happens, I just switch off the B0 wire, turn on all the switches for the bulbs (what a bright light), then switch off the bulbs and reconnect the B0 wire.
Then goes into the app and turn on the switch again....