BlueSolar MPPT leaves Absorbtion too early

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bskz asked Mar 9, '19

BlueSolar MPPT leaves Absorbtion too early

MPPT leaves absorbtion with 30 Amps. Acctually, there are 2 MPPTs, each at apeox 30 Amps which means at 60 amps still absorbing. BMV does't synch, because max SOC keeps around 85% end there's plenty of sunshine.

Why that happens?

Battery bank is 1000 Ah at 48V, lead GEL chemistry.

MPPTs are 2x BlueSolar Charger MPPT 150/60 in parallel.

There are 3 x MultiPlus 48-5000 in patallel.

BMV is BMV-600S.

MPPT Controllers battery charging

screenshot-20190309-102652-chrome.jpg (347.1 KiB)

screenshot-20190309-091144-chrome.jpg (228.9 KiB)

screenshot-20190309-091201-chrome.jpg (254.0 KiB)

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gs-nz commented · Mar 09, 2019 at 07:21 PM

@BSKZ what are your MPPT settings? Also, the first screenshot is the scale the same for the voltage/current and MPPT states? Something seems odd there to me.

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Modifications Space

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Answer 1 · 2019-03-09T11:19:55Z

mvader (Victron Energy) answered · Mar 09, 2019 at 11:19 AM

Hi. BSKZ; Its a problem in the current firmware version, it can happen under certain conditions.

We’re working hard on a fix. I expect a beta version within a few weeks. (And soon thereafter ofcourse a release of the new version).

Do you want me to send you an email once the beta is out?

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bskz commented · Mar 09, 2019 at 06:22 PM

Tnx for quick answer and yes, if there is upgraded firmware to my current BlueSolar Charger MPPT 150/60Firmware version v1.39, please email me or notify! tnx again!

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gs-nz commented · Mar 09, 2019 at 07:23 PM

@mvader can you please notify here when a fix is available? THANKS!

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lg-0 commented · Mar 10, 2019 at 02:23 AM

@mvader, would you be so kind as to email me as well when the beta is out, please? Many thanks!

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mvader (Victron Energy) ♦♦ lg-0 commented · Mar 10, 2019 at 05:29 AM

Hi both, Yes; anyone here I’ll inform.

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bskz commented · Apr 11, 2019 at 06:54 AM

@mvader, any updates on this subject maybe? :-)

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Answer 2 · 2019-07-15T21:07:54Z

xathros answered · Jul 15, 2019 at 09:07 PM

Hello,

I'm having the same problem with my MPPT 150/85. I have it configured for 3 hrs absorption (.5h X 600 AH). It spends exactly 30 minutes in absorption phase.

I have: SmartSolar Charger MPPT 150/85 rev2. Firmware v 1.39

Has there been any updates to resolve this yet?

Thanks.

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