Daly 8S SOC Drain While Charging and Constant Amp Reading

[Kurt13rager]

Good evening. I'm currently working through an issue with my Daly 8S BMS bluetooth and cannot seem to pinpoint the issue.

When charging the LiFePO4 cells (or not charging), the state of charge for the bms app continues to drop and quickly. The battery voltage reads 28.8V which is accurate but the amp reading, on the app, continues to read 29.2A regardless of what is actually flowing (even when charger is not active).

I have tested each of the 9 leads to ensure the correct voltage is read and it is accurate. The B- lead is connected to the main battery negative and the P- is connected to my Victron shunt battery terminal.

Any ideas as to what could be causing this issue or how to go about further troubleshooting? I've already disconnected the BMS and leads about 10x ensuring they are all wired appropriately.

Other components in the system, Victron Multi-plus 24V 3000VA with Smart Dongle, Victron BMV-712 with 500A shunt, Victron Lynx Distributor 1000 DC, Victeon Smart Solar MPPT 100|50

Thanks in advance.

 

[Kurt13rager]

To clarify, this issue hasn't always been present. I had disassembled my previous temporary setup when adding in the Lynx distribution and making the cables to and from it. I've tried bypassing the distribution but no luck.
Today, the SOC on my app now reads 0% with voltage at 28.9V and an amp reading of 29.2A.
Again, not sure what the issue could be as I have all the appropriate voltages at the pins; pin 1 (negative) vs pin 2: ~3.48v, vs pin 3: ~6.95v, vs pin 4; ~10.46v, vs pin 5: ~14.24v, vs pin 6: ~18.04v, vs pin 7: ~21.84v, vs pin 8: ~25.28v, vs pin 9: ~28.96v.

My next question would be, is there any way to "restore" or do a "hard reset" of the bms?

 

[Kurt13rager]

After going back and forth with Daly, we have determined there certainly is an issue with my BMS that cannot be corrected on my end.

They asked me to provide a video showing the actual voltage from each pin of the harness, connected to the cells. Again, this checked out as normal.

The next step the had me check the internal resistance of the BMS. I did this by checking the resistance across the B- lead and then the first B+ pin on the BMS. My resistance value was infinite whereas, I am told by Daly, an operational BMS should read 100ohms.

They stated that their BMS's go through quality control and I should not have experienced any issues. I did not short the BMS or do anything that could or would have caused this issue. Regardless, they have offered me a 50% discount on a purchase of another BMS. Given I've been without protection for a couple of weeks, I'd rather not go back and forth to get a better deal. I've agreed and am current awaiting a new BMS.

Hoping this information is helpful to another should they fine themselves in this situation.