Lead Carbon Batteries as Leisure Batteries

[autorouter]

The SmartShunt can also communicate with other Victron devices. It can send the Smart MPPT accurate voltage data, and if you connect a temperature sensor it will send that too, so the charging profile is more accurate. I think the MPPT already knows its own amps output, so it doesn't need the amps data.

 

[Al n Val]

The 500amp one is more than enough. That’s enough for 5000kva inverter.

12 volt planet do 5% off if you subscribe to their newsletter. About £120.

The shunt needs to go between your batteries and then everything else. It should be the last thing before your batteries or won’t give an accurate reading. That may require some thought and rewiring when you install it.

The Bluetooth range on it is poor! Expect 8 metres at best.

mmhh! its maybe not going to be as easy as expected tbh. What re-wiring do you think may be needed, i'm more thinking the van is still under warranty so not keen to mess about with wiring at this stage tbh

Al

 

[Googlebot]

mmhh! its maybe not going to be as easy as expected tbh. What re-wiring do you think may be needed, i'm more thinking the van is still under warranty so not keen to mess about with wiring at this stage tbh

Al

All you need to do is find where the last negative connects to the batteries. When you say they are on wiring harness’s the batteries should be connected by one negative lead, then off one of the batteries, the negative should go off to the van. This is the one you need to install the shunt in. There may be more than one negative coming off the battery so just connect them all together at the shunt then use one wire to the batteries.

They will be 10mm terminals so make sure the lead is big enough as in current carrying and the terminals are big enough to connect.

Warranty wise, unless you break something doing it, it won’t affect your warranty. Other option is to get dealer to sort it, then you have no issues at all.

They can be bodged in terribly, I know because I have. This is my old installation.

 

[Al n Val]

All you need to do is find where the last negative connects to the batteries. When you say they are on wiring harness’s the batteries should be connected by one negative lead, then off one of the batteries, the negative should go off to the van. This is the one you need to install the shunt in. There may be more than one negative coming off the battery so just connect them all together at the shunt then use one wire to the batteries.

They will be 10mm terminals so make sure the lead is big enough as in current carrying and the terminals are big enough to connect.

Warranty wise, unless you break something doing it, it won’t affect your warranty. Other option is to get dealer to sort it, then you have no issues at all.

They can be bodged in terribly, I know because I have. This is my old installation.

View attachment 467234

John

unless i'm mistaken you have a neg lead to the shunt and then another neg lead from the battery connection going to wherever. Should you not have the shunt directly to the battery connection and every other neg lead on the other side of the shunt, its what i've seen on the Victron youtube video's what making me ask this question

Al

 

[autorouter]

One way to wire them is to bring both battery negative cables to the load side of the shunt. Then connect a single thick wire from the battery side of the shunt to one of the battery negative terminals. Finally connect a link between the two battery terminals. There may not be a connection to the chassis, but if there is, it should go on the load side of the shunt, not the battery side.

Edit: On second thoughts it may be better to have two equal wires from the battery negative terminals to the battery side of the shunt. That will make it more like the original layout.

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[Googlebot]

John

unless i'm mistaken you have a neg lead to the shunt and then another neg lead from the battery connection going to wherever. Should you not have the shunt directly to the battery connection and every other neg lead on the other side of the shunt, its what i've seen on the Victron youtube video's what making me ask this question

Al

You are 100% correct. The lead goes to the other battery.

 

[Raul]

whats the difference between that and Broken Link Removed, apart from its a separate bluetooth dongle and what if any are the disadvantages do you know?

With the display you get a relay contact and alarm buzzer. Smart shunt don’t have that. I prefer the display with a dongle attached. It gives the flexibility of accessing settings without the need of a smartphone, also can be accessed via dongle at a reasonable distance 5m same as smart shunt, can set alarm for low and high voltage, can set the relay to operate a contact for turning a load on/ off, delay etc. It’s a more integrated equipment, depending on needs, size of system and preferences. The relay can be used to protect the batteries as well in many ways.

 

[Lenny HB]

I would replace the cables from the batteries to distruburion box with 25mm sq cables.
Like most Brit vans the wiring will be well under size to get the best out of the system it would be well worth upgrading all the wiring apart from the lights if they are LEDs.

 

[Al n Val]

I would replace the cables from the batteries to distruburion box with 25mm sq cables.
Like most Brit vans the wiring will be well under size to get the best out of the system it would be well worth upgrading all the wiring apart from the lights if they are LEDs.

hi Lenny

is this addressed to me?

Al

 

[Lenny HB]

hi Lenny

is this addressed to me?

Al

Yes

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[Al n Val]

Yes

I agree Lenny

the wiring up to the Sargent unit is piss poor tbh, the route up isn’t too bad either so i might give that a go

thanks for the tip, all lights are LED’s as well