Recent content by testtenor

Hi all, I currently have 2x Sofar ME3000SP hybrid inverters each charging one 15kwh battery pack (30kwh in total). The issue is that the two inverters don't speak to eachother and sometimes they get into issues charging/discharging into eachother. Can anyone recommend replacements which speak...

You might have the same issue I had. The BMS/Sofar doesn't know when your batteries are full and it's assuming they are, but in fact there is still room. You can try what I did. Up the cell capacity to something big like 400Ah and charge for longer. The BMS will cut off the charging. Then at...

Are you getting any alarms on the Seplos?

The BMS should turn it off at 100% charge as should the inverter. Perhaps it's going into absorption mode?

You'll find that it's not charging it at all after that point - I have the same inverter. It just won't discharge until 4.31am. have you logged into Solarman to check the charging/discharge numbers? Looks like the battery charge current drops away

I set the capacity to 280ah this morning at 100% charge. So that should be sorted now. I think my issue came from the fact I had to swap the BMS as the old one had a fault. When I did that I just swapped out without fully charging/discharging the cells first time round. So it probably messed up...

Battery level hasn't adjusted, so I'll have to do it in the morning to set the capacity. You cannot set it at the bottom without the SOC being messed up

I imagine it'll be battery capacity, as Rated should be the one you fill in yourself e.g. 280Ah and then it'll give you its actual capacity afterwards so 287Ah or 270Ah or something

Xuba was the supplier

I set things to 400ah as capacity and let charge last night - got right to the top end and it cut itself off via alarms and warnings. I'll let it run down today. I added 2 extra hours of charging time and according to my battery charger/inverter I put in 15.42kW of power. So the cells have had a...

Battery monitor 2.1.9 is only for the new model BMS. Don't use it on the older ones or it won't work.

Yeah. I might raise the value of the storage to 340ah or something

thats a go thats a good point. I am not getting the high alarm, its dropping out before fully charged. What's weird is the cells are 280ah cells - they should be getting fully charged given they are charging at 65A for 5hrs

After a few days of logging I managed to pull a big file and chart the data. This is a full day from normal running, discharge and charge cycle. I can see some differences in the cells - but at those voltages they are basically fully empty anyway.

There is a function on the BMS to set it to speak to the sofar inverter correctly.