Douw Gerber Posted August 4, 2022 Share Posted August 4, 2022 Hi all I just recently had a system installed with a Dyness BX51100 battery I am running SolarAsssitant to monitor things. The battery info is giving really weird results - could the BMS of the battery be faulty? See the reading on pack 1. Quote Link to comment Share on other sites More sharing options...
Douw Gerber Posted August 4, 2022 Author Share Posted August 4, 2022 And this... Quote Link to comment Share on other sites More sharing options...
zsde Posted August 4, 2022 Share Posted August 4, 2022 You have two of these batteries? Are the dip switches set correctly? The 400A by itself with zero voltage and zero Watts is an indication of some sort of comms issue. Yes, it could be the BMS, but it could also be the comms connection to the inverter or dip switches not set correctly. Have you tried disconnecting the comms cable from the battery, then manually set your inverter in USE mode or non Li mode and set all voltages according to battery specs. Reboot the system and batteries and see if the battery readings in SA change afterwards. Quote Link to comment Share on other sites More sharing options...
Douw Gerber Posted August 4, 2022 Author Share Posted August 4, 2022 Hi all I had to upgrade to a beta release of the SolarAssist software. All seems fine now excep that it reads the battery as 50Ah. But capacity SOC and Voltage readings look normal now at least. zsde 1 Quote Link to comment Share on other sites More sharing options...
mzezman Posted August 4, 2022 Share Posted August 4, 2022 2 minutes ago, Douw Gerber said: Hi all I had to upgrade to a beta release of the SolarAssist software. All seems fine now excep that it reads the battery as 50Ah. But capacity SOC and Voltage readings look normal now at least. Hownare the batteries connected to the inverter and Solar Assistant? Only asking because I have some challenges getting the SA connection going on my end Quote Link to comment Share on other sites More sharing options...
Douw Gerber Posted August 5, 2022 Author Share Posted August 5, 2022 (edited) 20 hours ago, mzezman said: Hownare the batteries connected to the inverter and Solar Assistant? Only asking because I have some challenges getting the SA connection going on my end Via a cable I ordered from SolarAssistant - Rasberry PI USB to Battery RS485 port Edited August 5, 2022 by Douw Gerber Quote Link to comment Share on other sites More sharing options...
Douw Gerber Posted August 5, 2022 Author Share Posted August 5, 2022 20 hours ago, Douw Gerber said: Hi all I had to upgrade to a beta release of the SolarAssist software. All seems fine now excep that it reads the battery as 50Ah. But capacity SOC and Voltage readings look normal now at least. SA got back to me to confirm that the Dyness reports 50AH but they are working on a fix for this. Its doesn't affect the battery runtime. mzezman 1 Quote Link to comment Share on other sites More sharing options...
mzezman Posted August 5, 2022 Share Posted August 5, 2022 2 hours ago, Douw Gerber said: Via a cable I ordered from SolarAssistant - Rasberry PI USB to Battery RS485 port Arent you using the battery RS port for the inverter bms? Quote Link to comment Share on other sites More sharing options...
Douw Gerber Posted August 6, 2022 Author Share Posted August 6, 2022 20 hours ago, mzezman said: Arent you using the battery RS port for the inverter bms? nope. Quote Link to comment Share on other sites More sharing options...
mzezman Posted August 7, 2022 Share Posted August 7, 2022 Aaah ok, then thats the issue i have. Will disconnect that one and use the SA one and see how thay goes. How does the inverter then know how to manage the battery though with the bms 'disconnected' for lack of a better word Quote Link to comment Share on other sites More sharing options...
Douw Gerber Posted August 9, 2022 Author Share Posted August 9, 2022 On 2022/08/07 at 11:25 AM, mzezman said: Aaah ok, then thats the issue i have. Will disconnect that one and use the SA one and see how thay goes. How does the inverter then know how to manage the battery though with the bms 'disconnected' for lack of a better word The battery is pretty much managed by SA using the automatic power management features. mzezman 1 Quote Link to comment Share on other sites More sharing options...
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