2023-03-12, 02:55 PM
The shunt is just a calibrated wire really, you can go with whatever you want to. In fact the ones I bought would have been a little more difficult to implement because their holes are too small to go over a battery terminal so I decided to get a different one and bought 300A ones from Aliexpress at $7.20 each:
https://www.aliexpress.us/item/3256804780517351.html.
They should arrive in a couple of weeks. The main reason was that they could easily be implemented in the boat. In my setup, I don't believe 150A would have been a problem, even when cranking, as that would be 450A for 3 batteries. I will monitor the current while cranking and may buy a smaller one later.
Is your plan to use one for all the low side or one for each battery?
One thing that concerns me about the Specs of the link you sent was the accuracy, it reads "0.01V", which is 10mV or 40A. It must be wrong?
https://www.aliexpress.us/item/3256804780517351.html.
They should arrive in a couple of weeks. The main reason was that they could easily be implemented in the boat. In my setup, I don't believe 150A would have been a problem, even when cranking, as that would be 450A for 3 batteries. I will monitor the current while cranking and may buy a smaller one later.
Is your plan to use one for all the low side or one for each battery?
One thing that concerns me about the Specs of the link you sent was the accuracy, it reads "0.01V", which is 10mV or 40A. It must be wrong?