Shunt, Inverter Wiring

[A.Smith]

Installing 2 100amp Battle Born in parallel, a Victron Shunt, and a 1200 watt inverter.

My question; Does the negative wire for the inverter go directly to the inverter, from the battery or through the shunt ?

I understand the negative off the battery goes through the shunt. Just not clear the inverter wiring.

Thanks,
Fred
aka, A.Smith

 

[Jon R]

The inverter negative should pass through the shunt so that the shunt measures that current. If you were to connect the inverter negative directly to the battery, bypassing the shunt, your tracking of battery stored energy would be way off when you use the inverter.

 

[Vic Harder]

+1

 

[A.Smith]

Thanks !

 

[craig333]

I bypassed the shunt on mine. I figure with the rare times I run the inverter it won't screw me up that much. Hopefully.

 

[Jon R]

I bypassed the shunt on mine. I figure with the rare times I run the inverter it won't screw me up that much. Hopefully.

What did you see as the advantage of bypassing the shunt?

 

[craig333]

The possibility of drawing too much current through the shunt. Making it act like a fuse. Maybe I worry too much.

 

[Vic Harder]

Shunt is rated at 500A. I think you will be ok. ;-)

 

[rubberlegs]

Speaking of external shunts, I just realized when our battery is heating, the shunt thinks it's being charged. Our battery uses about 4.5amps when heating.

 

[Vic Harder]

Speaking of external shunts, I just realized when our battery is heating, the shunt thinks it's being charged. Our battery uses about 4.5amps when heating.

Yes, that is a problem for keeping the SOC reading being accurate. I recommend that you set the shunt to auto SYNCHRONIZE when it detects that the battery is full.