I seem to have the same problem as you had. I have a 8s 24V 250A Daly (R32W-GA29). When I measure my pack-voltage (without BMS) I get 26,7V. When I connect B- to battery most negative an measure to P- I get 26,2V. I tried your method with the diode setting on the multi meter but I can’t get it to work. This is how I do it.
1. Connect all balance leads to the battery.
2. Make sure I get the correct reading on all leads when measuring each pin on the connector.
3. Plug the balance lead cable into the back of BMS.
4. Put the positive multimeter pin on B- and negative multimeter pin on P-
5. Connect B-
But the BMS gives no sign of life.
I have made sure that the Ntc temp sense is in.
When I measure the resistance between P-and B- I get the value as the picture. I am not sure if it is good or bad.
I seem to have the same problem as you had. I have a 8s 24V 250A Daly (R32W-GA29). When I measure my pack-voltage (without BMS) I get 26,7V. When I connect B- to battery most negative an measure to P- I get 26,2V. I tried your method with the diode setting on the multi meter but I can’t get it to work. This is how I do it.
1. Connect all balance leads to the battery.
2. Make sure I get the correct reading on all leads when measuring each pin on the connector.
3. Plug the balance lead cable into the back of BMS.
4. Put the positive multimeter pin on B- and negative multimeter pin on P-
5. Connect B-
But the BMS gives no sign of life.
I have made sure that the Ntc temp sense is in.
When I measure the resistance between P-and B- I get the value as the picture. I am not sure if it is good or bad.
dont use resistance mode. Forget that it didn’t work for me. Let it sit unplugged for a bit. Connect balance lead. Use diode mode with positive lead on b- and negative lead on p- then it should activate and then i connected b- to battery. My diode mode also has a beep/buzzer so when i connect the leads after a second it sounds which means continuity and its active. Balance lead must have all leads connected to battery including the negative so the bms has power from the lead to activate.