Hi,
I‘m planning to install a SmartShunt on my T6 California.
I wan‘t to monitor both Batteries of the car.
Maybe also to update a Solar panel next year.
Which version of the SmartShunt would be the best?
Would the 300A 50mV enough, since the leisure Battery is connected with M8 and I could only do plug&play.
Or should I go for the 500A 50mV version and customize the mass cable to M10 connectors ?
Best regards, Markus
Not sure how much the VW strter motor pulls when cranking.
However i would not use a 300A,the 500A would be safer.
300A is enough for your house battery except you have a lot of devices connected.
You may just get two 500A ones, that is what i did.
Yes you need to crimp new cable connectors with 10 mm hole for the 500A version.
Amazon has several 40-50€ hydraulic crimpers they work reasonable well, or just borrow one. Check always the crimped connector by pulling hard on it, i received some pre made cables and also on self crimped ones and the connector came off.
Chris
That’s impossible. A SmartShunt measures the current through the shunt, and since you have two batteries which serve different loads you have different currents from the two batteries.
Not even thru the second battery cable for a second battery?
I thought that this fine, grey cable is made for that porpose.
Chris
Second battery voltage, but not current
You can use a smartShunt to measure the house battery fully, voltage, current, energy.
You can use the Aux input of the smartShunt to monitor the starter battery voltage.
Id say 300A is enough, at 12V thats 3.6kW, i dont think the T6s inverter is that powerful, but surely depends on the model
Hi,
thank you for sharing your knowledge!!
Make sense the AUX input only measures the voltage. But I think that’s enough for me for the starter battery.
I actually don‘t know how many devices I‘ll power up.
So maybe I just go for the 500A, set it up once and I don’t have to think about anymore.
Shouldn’t be that much effort to crimp the M10 connectors.
Hi again,
ok, so had a closer look at the mass cable for the second battery… do you think this can handle even 300A?
I measured it… should be a 6mm2…
So maybe the 300A should be enough?!
Im sure it could handle 300A but the question is, for how long 
So yeah, the 300A shunt is sufficient
