question

Vangelis Beligiannis avatar image
Vangelis Beligiannis asked

SOC jumps 25% higher in minutes!

I have installed an offgrid system with an Easysolar 24/3000 with 472 Ah OPZV batteries and 2Kw panels. There is also a CCGX.

When the day is not 100% sunny the SOC value jumps 25% higher in only 20 minutes. 25% of SOC means around 120Ah that are never charged to the battery through the MPPT.

Why is the calculation of the SOC so wrong????2020-10-30-2.png

EasySolar All-in-One
2020-10-30-2.png (21.4 KiB)
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Alexandra avatar image Alexandra ♦ commented ·

@vbelijohn

I have seen this happen when some battery settings are not quite right.

What do you have as your settings under the internal battery monitor

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Vangelis Beligiannis avatar image Vangelis Beligiannis Alexandra ♦ commented ·

Enter Bulk at 90%.

Capacity 472

Charge efficiency 95%

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Vangelis Beligiannis avatar image
Vangelis Beligiannis answered ·

Enter Bulk at 90%.

Capacity 472

Charge efficiency 95%


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Alexandra avatar image Alexandra ♦ commented ·

Most OPZV are 85% efficient after 3years drop efficiency 1 to2 % per year or so,m aybe more depending on use though.

Bulk about 80%, they like quite a long absorption stage as well.

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