Sol-Ark 12K peaks in Battery Charge Graph

HI, I have a 12K running on the latest software 6222, 4 fortress eflex 5.4 with the latest software v4006 in Cam closed loop, and suddenly about a month ago, I start to see some peaks in the Battery charging graph of around 280W every 25 to 30 minutes (No matter charge from PV or Grid). Something strange is if you do the math between PV generation, charge, Load and Grid they will not add and there is a gap of about 280W so looks like that 280W additional going to the battery are not real. Also, I have the Fortress Guardian gateway and is not showing those 280W been received by the battery. I'm attaching 2 Pictures with the peaks in the graph and the status for each device. I Have TO set that when Batteries reach 90% include the load in the house to the PV.

Thanks ahead if anyone have any Idea?

Hi Manolito,
The inverter draw (the amount the Sol-Ark 12k uses by itself even without loads) will not show up in those numbers either. In the bottom snapshot, your inverter is using 44 watts for example.

The numbers you posted seem to add up, minus the expected inverter usage of around 60 watts.

Inputs: 317w PV + 1488w Grid = 1805 watts
Outputs: 324w charge to battery + 1437w load = 1761 watts

1805-1761 = 44 watts. Inverter is using that remaining 44 watts.

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You could try letting it charge to 100% and keep it there a while so it can balance. Then see if it keeps using the same wattage to maintain.

SunDave said:

Hi Manolito,
The inverter draw (the amount the Sol-Ark 12k uses by itself even without loads) will not show up in those numbers either. In the bottom snapshot, your inverter is using 44 watts for example.

The numbers you posted seem to add up, minus the expected inverter usage of around 60 watts.

Inputs: 317w PV + 1488w Grid = 1805 watts
Outputs: 324w charge to battery + 1437w load = 1761 watts

1805-1761 = 44 watts. Inverter is using that remaining 44 watts.

---------------

You could try letting it charge to 100% and keep it there a while so it can balance. Then see if it keeps using the same wattage to maintain.

Click to expand...

Hi SunDave, you are absolutely right with the calculations, My bad, in the cell phone print screen the data shows below is no at he same time as the peaks in the graph that is my concern, please take a look and the peaks. I will edit the pictures to avoid confusion.

Thanks a lot.

I see. Do your graphs show load as well? It's very hard to tell what is going on without seeing what each color on the graph means (the edit may have removed them).

If you go to the equipment tab, and look at the battery and inverter charts there, you can see more detail.

SunDave said:

I see. Do your graphs show load as well? It's very hard to tell what is going on without seeing what each color on the graph means (the edit may have removed them).

If you go to the equipment tab, and look at the battery and inverter charts there, you can see more detail.

Click to expand...

Hi SunDave, I think this grap have all details thatyou are looking for.

That is a tough one. I don't see anything obvious.

You could check other days and see if the charging behavior always changes at the same SOC (battery state of charge). I agree it is also strange that the spikes/dips of the battery charge don't show up on the load side when charging from AC.

Sometimes delay in the data can make problems hard to spot as well. PowerView is only updating every 5 minutes, so you are just seeing small points in time.

One other thing, if you are going for maximum efficiency (if you need all the power you can get), consider using the solar to power loads directly instead of battery charging. Use the battery to store "extra" power.