How to get Plyontech batteries to 100% SOC

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davidrkennedy asked Feb 24, '21

How to get Plyontech batteries to 100% SOC

Hello

My system is 2 x US3000 batteries, 1 x Multiplus II 5kw with a 1kw ongrid connected to the AC IN (waiting on stock of a BlueSolar) and a Cebro but I have an issue that the Cebro gives me a high battery voltage alarm with 91% 92% SOC and the charging stops... I can clear the alarm and sometimes it will go back to charging the batteries with 10 amps but that only lasts a minute ( if at all) so for now I cannot get near 100% charge. Any ideas thanks .

SOC

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seb71 answered · Feb 24, 2021 at 08:27 PM

Have you read this?

2 |3000

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Modifications Space

Node Red Space

Answer 1 · 2021-02-24T20:49:03Z

davidrkennedy answered · Feb 24, 2021 at 08:49 PM

No I had not seen that article, interesting that the BMS has a cell voltage of 53.2v but Victron considers that too high. The note about this gets better over time is interesting, i guess the bms learns some. Thanks for link !

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2 |3000

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seb71 commented · Feb 24, 2021 at 09:02 PM

That's the battery voltage, not cell voltage.

It's not that the BMS "learns" over time, but the cells will get closer in charge level and voltage (at the top) over time.

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