New build

Tried to call supplier. but phone issues out west are not allowing calls through.

Just purchased 13K system with 3960W of panels.

Asked about adding a Victron Shunt, but they never responded. I see a 500A and a 1000A shunt. I am leaning toward the 1000A shunt.
Which shunt do you recommend?

In process of installing system in a tow behind trailer. What temperature problems will I encounter? I am in North Florida, but want to be mobile to be able to move system to another property.

Thanks for your time..

You haven't told us enough to answer the only question you asked. What battery voltage are you planning on? (48v I assume?) What is your maximum combined load in watts? That is, in the absolute worst case, how much total watts could be drawn at any one time?

Horsefly said:

You haven't told us enough to answer the only question you asked. What battery voltage are you planning on? (48v I assume?) What is your maximum combined load in watts? That is, in the absolute worst case, how much total watts could be drawn at any one time?

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Have 3 48v LifeP04 batteries. When time allows, want another battery.

Looking at 12,000w that I hope is max. Running my camper. And small cooler trailer.

Horsefly.. Funny till they bite you..

OleMan2765 said:

Have 3 48v LifeP04 batteries. When time allows, want another battery.

Looking at 12,000w that I hope is max. Running my camper. And small cooler trailer.

Horsefly.. Funny till they bite you..

Click to expand...

12000 / 48 / 0.85 = 295A, so the 500A shunt should be plenty big. I hope you are using BIG wire, to handle 300A. By the way, the 0.85 is allowing for the inverter efficiency of 85%, which is conservatively low.

Yes, Horsefly bites hurt. My name is after Horsefly peak in Colorado, near our cabin. However, the peak is named after the bug, so the connection you made is still valid.

Horsefly said:

12000 / 48 / 0.85 = 295A, so the 500A shunt should be plenty big. I hope you are using BIG wire, to handle 300A. By the way, the 0.85 is allowing for the inverter efficiency of 85%, which is conservatively low.

Yes, Horsefly bites hurt. My name is after Horsefly peak in Colorado, near our cabin. However, the peak is named after the bug, so the connection you made is still valid.

Click to expand...

1/0 from batteries, 4/0 out from the inverters.
Have 250A fuses to each inverter, but thought the 1000A would be safe, as I am interested in enlarging my system.
Thanks for the update.

OleMan2765 said:

1/0 from batteries, 4/0 out from the inverters.

Click to expand...

Not sure what this means. You have wire from the battery bank to the inverter. Is it 1/0 or 4/0? If 1/0, that is too small for 300A.

Horsefly said:

Not sure what this means. You have wire from the battery bank to the inverter. Is it 1/0 or 4/0? If 1/0, that is too small for 300A.

Click to expand...

Have to look into that. Kit had two batteries originally, added a third battery.
I need to verify from the buss bar to the inverters wire gauge. Think the wire is 1/0. might need double ought.