I have installed this charger on a camera system with two 12V 12Ah batteries in parallel. There is a lot of AC interruptions. It has worked well for about 10 days, but then after a lengthy AC off time, it did not want to charge the batteries again. The Bluetooth app showed 4V and 0A. I have tried several times disconnecting AC as well as the batteries and every time the same. I have also tried to change the settings. Removed the charger and replaced it with a C-Tech 5A charger and it immediately started charging normally. Brought the Blue Smart back home and connected it to a partially discharged 7Ah battery. It seems to work well. Why did it not want to charge the batteries from 4V?
