Chrislo

Thanks the wire layout you suggested helped with having equal consumption between the batteries, now the charge capacity are similar. Thanks for the info, I've set it to 98% just in case one of the batteries has already reached 100% to prevent having an average lower than one fully charged battery while one of the BMS is trying to discharge (one 100% the other 98%). This would help with night charging, do you know any option to control the % with solar panel charging? I'm still having the same issue but with lower dis/charge rate. Will be reaching out to a better technician to prevent any damage. Meanwhile I'm intentionally slowing down the charge rate to 0A when they reach 90%. I've seen that some suggested we use the use battery voltage option instead of lithium configuration, not sure if its recommended.

Couldn't find an option to set the max charge when setting the battery type to Lithium (00), although can be achieved with custom % or voltage settings. Temporary I'm intentionally decreasing the charge rate to 0A when they reach ~90% to slow down the charging until a technician can visit.

Both batteries are connected together then connected to both inverters. When fully charged a small buzzing sound happens every few minutes in the batteries (they alternate) never happens before fully charged.

Collected the requested info to add to the above: Battery Config: System Work: Master Config: Secondary Config: Connection between inverter and batteries:

Thanks for the reply The system is connected to solar panels (28 panels). The output from the solar panels fluctuate (3kw to 0.5kw) when the batteries are fully charged and become unstable with inverters switching charge/discharge until they get down to 95% charge. Should I disconnect the batteries until the technician can have a look?

I have 2 Sunsynk (Deye) 5Kw connected in parallel, configured with two 10Kw lithium batteries (GeneralGold). They charge normally until they get fully charged then they start self consume down to ~95% then start charging up again. Primary inverter charges it while the secondary consumes or vice versa ONLY when fully charged, sometimes charge or discharge happen within 2 seconds on the same inverter. The batteries are brand new, not sure where to start debugging. Any help/guidance is appreciated. Battery specs: Same inverted within seconds: Battery Battery Config: System Work: Master Config: Secondary Config: Connection between inverter and batteries: