Mr.Michael
New Member
- Joined
- Feb 2, 2020
- Messages
- 40
I use the 8S Daly Smart BMS DL-BMS-R32-01E with a 24V 100Ah LifePo4 setup. This mostly works OK. I did set up the system just over 3 months ago so I have about 100 days experience with it. The current measurement seems off, with a 1KW resistive load on the inverter the BMS meter jumps around between 15A and 50A while the water kettle is heating up. The low frequency inverter shows a constant DC current as expected for this kind of load. That is annoying and may lead to inaccurate SOC calculations from the BMS.
Yesterday evening I had the first real problem. It happened just after sunset so the battery was likely at 98%-100% SOC. While running the induction plate at about 900W the BMS shut off. I tried to connect to Bluetooth, no go. So I plugged the USB UART in and also got nothing. The BMS did not connect after repeated tries.
To get it going again I physically disconnected and reconnected the BMS from the cells. This woke the BMS up and all seemed normal. All my parameter settings seem to be OK, cell voltages are OK. The cycle count was also correct. The error statistic was empty. I turned on the kettle as a test load, all good. So it looks like a software crash happened. A 2nd possibility is that the jumpy current meter detected incorrectly an unhealthy high current and shut down everything to protect the BMS and battery. But like I mentioned no errors where recorded.
Hardware: 8S Smart BMS DL-BMS-R32-01E
Software: 20210222-1.01T
Is this a common issue? I occasionally go on multiday trips and do not want my woman to experience this type of failure specially as it also takes out the Internet connection and we do not have any cellular coverage in the area.
Yesterday evening I had the first real problem. It happened just after sunset so the battery was likely at 98%-100% SOC. While running the induction plate at about 900W the BMS shut off. I tried to connect to Bluetooth, no go. So I plugged the USB UART in and also got nothing. The BMS did not connect after repeated tries.
To get it going again I physically disconnected and reconnected the BMS from the cells. This woke the BMS up and all seemed normal. All my parameter settings seem to be OK, cell voltages are OK. The cycle count was also correct. The error statistic was empty. I turned on the kettle as a test load, all good. So it looks like a software crash happened. A 2nd possibility is that the jumpy current meter detected incorrectly an unhealthy high current and shut down everything to protect the BMS and battery. But like I mentioned no errors where recorded.
Hardware: 8S Smart BMS DL-BMS-R32-01E
Software: 20210222-1.01T
Is this a common issue? I occasionally go on multiday trips and do not want my woman to experience this type of failure specially as it also takes out the Internet connection and we do not have any cellular coverage in the area.