Bluetooth setup on auxiliary battery setup. Victron

There is a Victron Charger with Bluetooth monitoring listed in the Classifieds.

Might do all you want and a lot cheaper.

bill

Steven
When you say, install a dc battery charger, I presume you mean a DC DC charger, as all battery charging is dc anyway. DC DC being, using main battery as the source supply for the DC DC unit. If the DC DC unit has also has a SOLAR input then you do not require a solar controller at all. You didn't mention capability of the charger. If you use a singular DC DC charger, ie battery to aux then a $100 Renogy 25 amp solar MPPT unit would suffice for the solar controlling to the battery. Way cheaper than a Victron solar charger but nothing wrong with them. The Renogy is a heavy unit and being MPPT harvests the most out of the solar panel. It has a 100v solar input so two panels can be series connected to create charging in lower light conditions. The Renogy has a screen which the most Victrons don't have and only rely on Blueteeth to somewhere. Unless you need Bluetooth for a particular reason it is an additional cost. You will have the battery performance catered for with the Monitor unit and it's Bluetooth. Jut a perspective on it all.

that's the way i understood via a shunt ...
there are a few youtube vids on this sort of setup... Victron Todd Dunn

Well, I have just returned from a bush camping trip and for the third time I have been evaluating the Victron 712 I have on my van.
In short, it is not doing what I what it to do.

I have a 120Ah Lithium Battery (which has its own internal management system).
After a couple of days the Victron tells me the SOC (State Of Charge) is very low and the battery needs urgent charging.
However, the voltage level is at 13.24 and the Van's compressor fridge is still running. I also deploy a 160w solar panel while stationary.
At no time has the battery failed to supply the voltage necessary to run the fridge, 12v water pump and lighting and I am confident that the battery's internal management system is protecting the battery from low discharge.

Once the Victron shows 0% charge, it sticks it head in the sand and will not function "properly", until it has received an overnight charge from a 240v charger, where it will again show 100% charge and an "infinite" level of Amp hours.
Also, the monitor fails to display any change in the charge rate from the solar panel.

I have a previous battery monitor which worked 100% of the time and showed everything that was going in and out of the battery, including the charge rate from the solar panel. The only reason I can't use this monitor is because it doesn't support Lithium Battery technology. But there again, in my opinion, neither does the Victron 712.

So basically, I have come to the conclusion that the Victron is not a practical monitoring device, as far as Lithium batteries are concerned, at this point in time.
A waste of $340 in my case.