bms displaying 0V for 4th battery when 4 battery cells are connected

[suvasis]

hi,

I bought RDDRONE-BMS772 recently. Connected 4 cells, 3 cells display correct voltage but the 4th cell is displays 0v. Pls ref the images, can anyone point me to what else to do to correct this?

BMS display show cell 4 is 0V yellow4th cell reading is good from here, 3.6V

[suvasis]

the reply helped.

[guoweisun]

You can try to use 6s in this system to test again.

[suvasis]

1.The default is 3 and it is not auto detect..

2. they are working after I set the number of cells to 6.

Now it looks ok after the number of cells are set to 6.

[suvasis]

also attaching the configurations:

cell 3 reading is 3.6V and bms display also shows 3.6V