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Fra avatar image
Fra asked

Suggestions for improving Victron Connect

hello, after 2 years of use and study I noticed fews things that Victron products can improve a lot with little effort.


1) the count of the cycles of the smartshunt and of the various models of BMV.

A cycle is only counted under 65% ..

This is incorrect in my opinion for lead acid batteries one should count a cycle even at 90% or 85%.

IN my RV the system is correctly sized, the batteries are agm for 178ah, and the photovoltaic of 450 watts.

I live in a pretty good climate and never run out of batteries below 80/85%.

So no cycle counts, apart from synchronizations.

This also leads to an inaccurate reading of the average discharge.

In fact, the average discharge is based on cycles and not on synchronizations.

In fact, I have average discharges of 25/30 ah and this is not detected, since my battery pack is 178ah and I never discharge below 65%. actually never below 80%.


2) it would be nice if the victron Connect app for the smartsolar also displays the internal temperature of the solar controller.

This temperature is certainly detected by the smartsolar but is not displayed.

3) it would be nice in the "trends" section to be able to cross the curves of 3 values and not just 2.

For example "battery voltage + battery current + soc".


it would be nice if the AH count was implemented in the historical trends of the smartshunt. Instead it is the only data that is only available in real time.


4) it is a pity that a small economic accessory is not available that records in a memory all the data of historical trends in CSV format to be exported.

The trend is only available on the App for 46 days and the possibility to save the history every 30 days (but only manually) from the smartsolar.

When I had the Epever-based system, a simple object costing 20 euros would record months of data at a time in. CSV.



I hope these suggestions can be taken into consideration, at least in part… at least the talk of battery monitor cycles.

BMV Battery MonitorVictronConnectSmartShunt
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Trevor Bird avatar image Trevor Bird commented ·

@Fra interesting points however the discharge cycle may be worth reconsidering. Battery manufacturers sometimes rate their battery life in terms of discharge cycles. Some set that to an 80% discharge as a measure of one discharge cycle. If you set the discharge cycle too high ( or not enough discharge) it loses meaning because it may look like the batteries are much older in terms of discharge cycles than they really are. It is possible if discharge cycle depth is not set low enough you may think batteries have really been hammered when really they have hardly been used.

The setting you request for cycle depth may make the concept of discharge cycles lose all conventional meaning.

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Fra avatar image Fra Trevor Bird commented ·

sure, I am aware of this.


however there are some Rolls battery,

screenshot-2022-09-28-10-54-38-345-cnwpsmoffice-en.jpg that have a difference in duration between 2,000 cycles at 30% DOD and over 4,000 cycles at 10% DOD.
My own victron agm battery is given for 1500 cycles with 30% DOD.

In my situation it results in 0 cycles on the smartshunt, when in reality it has done more than 400 cycles with DOD 15/25%.

According to the smartshunt it should last me tens of years.
Instead I know that after 1500/1800 cycles with DOD 15/25% the battery will be exhausted. but according to the smartshunt it will be new.

Only the synchronizations allow me to know the true number of cycles.

Could you at least make sure that the average discharge is always calculated every synchronization?

Because it is currently calculated between total Ah divided by the number of cycles.
And in my case the average discharge is 0Ah, since according to the smartshunt I have not even done a cycle.

but my average discharge is around 20/25 Ah. And it is not detected. Except if I divide the total Ah by the number of synchronizations, in my mind.

The user could be allowed to set the cycle count threshold to their liking.
For example, differently in the case of lifepo4 batteries, or Agm or traction flooded acid.


Thank you.

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Trevor Bird avatar image Trevor Bird Fra commented ·
@Fra …..very good point. Many thanks for the detailed explanation.

Regards,

Trevor

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Fra avatar image Fra Trevor Bird commented ·
Ok, i dont no if you are a victron technician..

Im not a software ingeniering, but i think Is very simple to add these feature in the App..

Or not?

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