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tim1970's avatar
tim1970
Explorer
Jun 04, 2018

Battery monitor question

I am about to replace my battery with 4 6 volt batteries. (I have another post with some other questions about this)

When I do this, I plan on adding a Victron battery monitor. It looks like it will be an easy install with just adding a shunt on the ground wire.

My question is about how it functions. I know it will tell me pretty much everything I need to know when I am unplugged and relying on battery power. However, will it be able to tell me how much power is being consumed when I am plugged in? Is there anything useful that it will tell me, or is it only for times I am not hooked to power?

Is this a decent monitor? I am open for other recommendations if you think there is a better option. However, it must be simple to install.

Thanks
  • the Victron monitors the battery line, NOT incoming 120vac

    it will tell you the charging power into the batteries when you are plugged in
    or the power drain on the batteries when NOT plugged in

    it will NOT tell you how much shore power your A/C , fridge ,TV , converter etc.. is using

    for that you need a 120vac watt/power meter, a scaled down digital version of the electric meter for your stick house, installed between shore cord and RV electric panel
  • I'm a fan of the Trimetric 2030RV. Not only American made but when the WIFI module comes out, you can monitor your batteries from anywhere you have internet. I think Bestconverter is behind it and part of the new Boondocker line. Clever in that I can be in Europe and see my battery SOC. From what I understand it is backward compatible with any 2030 model but not models prior to the 2030.
  • Hi Victron is a good name and an excellent product. There is one only that I know that is better, but it is considerably more expensive. It is called a Smartgauge.

    The Victron won't help with monitoring total energy use while on shore power but if wired properly may show when the battery bank is being charged and at what rate.

    For total energy monitoring add a watt meter, such as the one from Efergy.

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