Multiplus 24/5000 not entering bulk. Charges the battery on float. (solved)

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Vangelis Beligiannis asked Jul 14, '20

Multiplus 24/5000 not entering bulk. Charges the battery on float. (solved)

I have an offgrid system with a a Multiplus 24/5000 , MPPT 150/35, BMV 700, CCGX and a Fronius primo on ac output. The battery discharges up to 83% SOC (min. voltage around 24,3V) during the night and the next morning does not enter bulk phase. It stays in float until the battery is fully charged.It happens with DVVC and without DVCC. The "Enable battery monitor" box is not selected in the VEconfig general tab as the BMV is more accurate. The only way to start a charge cycle is to restart the multiplus. Any ideas?

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Vangelis Beligiannis answered · Aug 15, 2020 at 02:24 PM

I finally found what is going wrong!

The Multiplus does not start a new charging cycle if the battery voltage does not drop under a certain value. So I was not discharging the battery in order to trigger a new charging cycle.

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Answer 1 · 2020-07-16T07:41:55Z

barney9304 answered · Jul 16, 2020 at 07:41 AM

I would check whether it's because your on adaptive charging as it doesn't seem to like off grid scenarios as much.

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Answer 2 · 2020-07-18T08:53:43Z

Vangelis Beligiannis answered · Jul 18, 2020 at 08:53 AM

Thank you!

I changed it but nothing happened.

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