My problems are quite random. The system bounces between 2 and 13V for some time. I have to disconnect the power to regain power in my RV.
I first thought there was a connection with the temp sensor/ntc. But I could be very well the BMS firmware. I do not see any changes listed so it's a shot in...
It seems there are limited versions on the market without the option to use or change the password.
Apart from that, there are daly Bluetooth modules with switch and without.
My daly 150A smart used 654321 as password before I changed it.
BTW changing it generated an error code but it did change.
Not sure which security code to use to update this version. Just 123456 or one of the other firmware related codes named in this topic. Using android app version 2.5.2
Software version. 20210729-1002A
Daly 4s 150A 12V