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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...

Thanks. Yes, that is what I am planning to do tomorrow. Update: used 2.5 ohm resistor to drop the 4 capacitors down to 2.6v (tried to get balancer working at 3v, but no luck) and it connected via bluetooth, and did balance job this afternoon. The caps were sitting at 3.25v this morning before...

Hi, I am having the same problem. I managed to get device going after initial 5 days use, by discharging internal caps. It has stopped again, so will try that trick again tomorrow. When bluetooth connects, blue light goes hard on, 2-3 seconds later, fault led (red) begins flashing.