Battery Monitoring shunt for vehicle starter-battery

[Pidsley]

Covered many times I know, but I want to make sure I'm current (pun intended).

I need to closely monitor amp drain from my starter battery, as I suspect I have a parasitic drain (currently showing 0.6amps when van is asleep).

I was think of the Victron SmartShunt (bluetooth version). Which one would be suitable for a 2021 T6.1, with a Yuasa EFB 7000aH (YBX7096) starter battery fitted. 500amp, 1000amp, 200oamp?

Thank you.

 

[Qnapper]

Have a read:

Search

www.t6forum.com

 

[Pidsley]

Have a read:

Search

www.t6forum.com

I have read. Cant find answer to my Specific questions

 

[Loz]

Victron Smartshunt

Just arrived this morning. Hopefully get it wired up later this week.

www.t6forum.com

 

[Pidsley]

Victron Smartshunt

Just arrived this morning. Hopefully get it wired up later this week.

www.t6forum.com

Thank you. I'm looking to put it on the starter battery.

 

[Dellmassive]

It's not advised to fit a shunt to the starter battery as VW have there own one on the battery NEG post.


But if I was too, I'd be fitting a 1000A version so as not to interfere with the VW system.

You can use the second input on a shunt fitted to the LB to monitor the starter voltage.

...

If you need to monitor current...

You can use a stand alone clamp meter...

Clamp Meters

Any recommendations for clamp meters? They have been mentioned in a few threads but I can’t find suggested products. Suitable for small mA measurements with dc in the van and elsewhere and also if possible up to mains ac. I’m not sure how much I need to spend for a tolerably decent one with the...

www.t6forum.com

.


Or use a induction Amp monitor meter that just goes around the VW main earth cable.

Battery Monitoring -- How I Done It --

Battery Monitoring -- How I Done It -- Part #1 Battery monitoring is a very important part of your 12v system . . . . whether its just the vans starter battery or your leisure setup keeping an eye on the power in your battery bank will keep you from breaking down and make sure your weekends...

www.t6forum.com

.

 

[Pidsley]

It's not advised to fit a shunt to the starter battery as VW have there own one on the battery NEG post.


But if I was to, I'd be fitting a 1000A version so as not to interfere with the VW system.

Thank you. I'm considering just fitting the shunt just whilst the van is stationary and "asleep" so I can monitor the draw on the battery over a couple of weeks. I don't intend to drive with the shunt fitted.

 

[Dellmassive]

Example of amp meter that doesn't interfere with the factory setup....

You pass the neg cable through the sensor like a clamp meter.

https://amzn.to/3YceG0C

..

 

[Dellmassive]

I've edited the above post with additional info

 

[Pidsley]

I've edited the above post with additional info

Brilliant advise. Thank you. "Clamp on" seems the easiest obvious one for me at the moment. Thanks again