Victron BMV 700

[Alan S]

I have a BMV 700 battery monitor which I find quite useful, but what I would really like is some way of displaying a graph of Volts and Amps over time. Looking at the Smart dongle and Victron Connect app I am disappointed to see that it does not seem to offer any function like this.
Does anyone know of a way of acheiving what I want?

 

[chriswesterman]

Daft question, but have you updated to the latest Victron Bluetooth firmware. On the Demo libary in the app, it shows Volt / current graphs are available on the Trends tab. for the BMV-700
I don't have the BMV-700 but the BMW-712. When I first got this there was an issue with the Trends which was fixed by a later Bluetooth update.

 

[Alan S]

Thanks Chris.
I was just looking at the online pdf manual for the smart dongle and it says under Limitations that stored trends are not supported. Time to phone Victron I think.

 

[roaringgirl]

Mine (712) will draw that graph for you, but only while you keep that screen open.

 

[chriswesterman]

Mine (712) will draw that graph for you, but only while you keep that screen open.

<Roaringgirl> that was the same behaviour I had before the "bluetooth driver' update. Now when I go down to the boat I can download the history, although it does something strange with the storage interval (increases the time interval for older readings) .

 

[lustyd]

You'd need a Cerbo to collect the logs if you want longer term data. A Raspberry Pi can be used with VenusOS and achieve the same. If you connect it to the Internet then Victron's VRM will log it all to the cloud for you.

 

[Alan S]

You'd need a Cerbo to collect the logs if you want longer term data. A Raspberry Pi can be used with VenusOS and achieve the same. If you connect it to the Internet then Victron's VRM will log it all to the cloud for you.

Sounds good but probably overkill for me.
All I really want is to see a simple graph of amps in and out and volts over say 12 hours during one charge or discharge cycle while I am actually on the boat.

 

[Alan S]

<Roaringgirl> that was the same behaviour I had before the "bluetooth driver' update. Now when I go down to the boat I can download the history, although it does something strange with the storage interval (increases the time interval for older readings) .

That would probably be okay for my needs as long as the 700 and smart dongle definitely supports this. I have emailed the nearest Victron dealer as Victron themselves don't seem to offer tech support.

 

[lustyd]

Sounds good but probably overkill for me.
All I really want is to see a simple graph of amps in and out and volts over say 12 hours during one charge or discharge cycle while I am actually on the boat.

I agree. I have it and never look at the data. It was interesting briefly at the start, and useful for troubleshooting now and then but it's not worth the faff overall.

 

[jwfrary]

That would probably be okay for my needs as long as the 700 and smart dongle definitely supports this. I have emailed the nearest Victron dealer as Victron themselves don't seem to offer tech support.

The smart dongle doesn't support this function. It's only availible on the newer 712

 

[KompetentKrew]

As others have said the SmartDongle does now save the graph's data if you have the new firmware which was released 2 - 4 months ago and access it by the Victron Connect app on your phone.

I was surprised when I got my SmartDongle - the graph seemed pointless because you'd close the app, reopen it an hour later and there was no history showing. How pointless! With the new firmware it now records properly.

I don't know anything about the BMV 700.