Battery shunt Digital Monitor

[davebradf0rd]

I'm looking at installing a shunt monitor attached to each battery on my Beneteau Antares. The kind that use a low ohm shunt on the 0V return bus look the best, but there a few on the market.

Are there any views on which gives the best performance?

The best I'm seen is the AiLi Voltmeter Ammeter Voltage Current Meter

 

[vas]

victron BMV712/700 ?
why each battery? assuming 2 banks, you use the shunt on the service bank, the 712 has a second point that can measure voltage of the engine bank, or use that to measure temp at the terminal

 

[davebradf0rd]

victron BMV712/700 ?
why each battery? assuming 2 banks, you use the shunt on the service bank, the 712 has a second point that can measure voltage of the engine bank, or use that to measure temp at the terminal

No really a bank of 2 batteries.
I have an engine battery & an auxiliary battery that drives all the tech on board.
The isolator switch can be used to put both batteries in parallel incase the engine battery is in trouble, but its really the auxiliary battery that takes the hammering with the engine off & an afternoon of fishing with all the tech inc. fridge turned on.

The Victron 702 looks good as it has a 2 battery option, probably needs 2 shunts?

 

[vas]

no, one shunt measures the aux bat in your case. as I said, second wire from the shunt goes to the positive of the engine bat in your case to measure condition.
you don't generally care/need to see consumption amperage and state on the engine start battery as it's mostly sitting there doing bugger all. Just need to ascertain that its full so that it will start your engine when needed...

 

[davebradf0rd]

no, one shunt measures the aux bat in your case. as I said, second wire from the shunt goes to the positive of the engine bat in your case to measure condition.
you don't generally care/need to see consumption amperage and state on the engine start battery as it's mostly sitting there doing bugger all. Just need to ascertain that its full so that it will start your engine when needed...

I've just been reading up the Victron site & yes this is a more elegant solution. As you say its only the 'Aux' battery that needs a discharge monitor. One monitor will look a lot more tidy as well

 

[portis_rich]

Victron smart shunt is a new bit of kit if you don't mind the Bluetooth app....

 

[davebradf0rd]

Victron smart shunt is a new bit of kit if you don't mind the Bluetooth app....

I like to try and keep it simple. The more complex the solution the more likely it is to fail.
I'll stick with a display on the helm that is always there & in the right place.

 

[Daverw]

I like to try and keep it simple. The more complex the solution the more likely it is to fail.
I'll stick with a display on the helm that is always there & in the right place.

I’ve just fitted the smart shunt, took 15 minutes and the Bluetooth app is first class, so much easier than having to fit a remote display

 

[portis_rich]

I've used the Bluetooth app on my bmv 712 in both my campervan and my boat for two years now. Never let me down once and gives interesting data like trend graphs. Build quality seems excellent, but obv you pay for that!

 

[simonfraser]

Victron Energy SmartShunt Battery Monitor 500A Bluetooth Inside

excellent bit if kit, only downside is that bluetooth logs out every time you switch apps, minor issue imo

 

[vas]

Victron Energy SmartShunt Battery Monitor 500A Bluetooth Inside

excellent bit if kit, only downside is that bluetooth logs out every time you switch apps, minor issue imo

or if it's like the MPPT BT (should be same device/protocol), everytime screen blanks on my android phone, which is v.annoying unless you want a quick glance at the values (but usually I dont)