question

swordoski avatar image
asked · Aug 19, 2020 1:51:28 PM

How do I install the Smartshunt with parallel batteries?

What is the correct way to install the smartshunt on my battery bank ?!

I have 2 battery (12v) in parallell, and 2 VE Blue Smart 75/15 charges (synchronize charging)

Br

Marcus

installationsmart shunt
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2 Answers
Matthias Lange - DE avatar image
Matthias Lange - DE answered ·

The shunt has to be connected in the negative wire that goes to your loads/chargers.


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pieter-boomsma avatar image
pieter-boomsma answered ·

Hi Marcus,

It depends a bit on what you want. You can see your 2 parallel batteries as 1 battery. They cannot be monitored seperate from each other so don't stare blind on that. If you don't charge the batteries from an alternator you can use the diagram on page 9 of the manual. Make sure to set Setting 69 (Auxilary input) to Starter battery or Temperature even if you do not use it (it will give you an error regarding midpoint voltage error if you don't).


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swordoski avatar image swordoski ·

Hmm...Alright @Pieter Boomsma

So i put both MPPT's on the SYSTEM MINUS side on the Smartshunt ?!


pieter-boomsma avatar image pieter-boomsma swordoski ·

yes, there will not be anything else than the 2 batteries on the minus side of the shunt.

pim avatar image pim pieter-boomsma ·

Hello Pieter, and what about the positive VBatt+ when using 2 parallel banks? Does it matter on which of both batteries it is? Same as where the shunt Battery minus is connected to or is it better to use the plus of the other battery for more accurate values? My problem is that the 2 batteries aren't near each other (there is a motor in between ;-) ) so when there's is not a huge difference, I prefer all connections to one battery.