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I’m installing a Victron DC-DC Victron Orion smart 12/12/30 in my truck camper. I already Have a 200amp battleborn lithium bank and am using a Victron smart shunt with a Victron BMV 712 already in place. Question is do I run the DC-DC negative through the smart shunt or directly to the Orion DC-DC charger?
Connect the negative battery terminal to the M10 bolt on the "BATTERY MINUS" side of the shunt. Tighten the shunt bolt with a maximum torque of 21Nm.
Note that there should be no other connections on this side of the shunt or on the negative battery terminal. Any loads or chargers connected here will be excluded from the battery state of charge calculation.
Connect the negative of the electrical system to the M10 bolt on the "SYSTEM MINUS" side of the shunt. Tighten the shunt bolt with a maximum torque of 21Nm. Make sure that the negative of all DC loads, inverters, battery chargers, solar chargers and other charge sources are connected “after” the shunt.
Note that up until 2020, the SYSTEM MINUS connection was labelled LOAD MINUS.
Connect the ferrule pin of the red cable with the fuse to the shunt by pushing the pin into to the “Vbatt +” terminal.
Connect the M10 eye terminal of the red cable with the fuse to the positive terminal of the battery.
The battery monitor is now powered up. the Bluetooth LED will start blinking and Bluetooth is active.
In order to be fully functional, the battery monitor needs to be configured; see the Configuration chapter.
In case the battery monitor is going to be used to monitor a second battery, battery bank midpoint or battery temperature, see one of the next 3 paragraphs on how to do this and then go to the Configuration chapter.
My set up is very simple. 2 100Ah Battleborns. No solar, no inverter.
I’m familiar with the Victron smart shunts and have two on my boat and realize that the onboard chargers negative leads need to be to the shunt.
I was pretty sure the DC-DC Victron would be no different and the negative from the truck battery should go to negative of shunt and then to the DC-DC charger to be able to know the proper charge state. Reading what you posted tells me this would be correct, am I correct? Thanks
I have the smaller 12/12/18 Victron unit and monitor my system with a Renogy RBM500 display.
From the Neg terminal of my battery bank it goes directly to the shunt connection.
Next it goes directly to a 150a buss which then connect’s up all my load wiring.
Truck battery wiring has a 30a resettable circuit breaker mounted directly on it and then my wiring goes to a 4 pin Curt plug up inside the front drivers side of the bed.
I added an additional 4 pin plug on the front of my camper next to the original camper plug from there it goes directly to the Victron unit and then connects up to the 150a buss inside my battery compartment.
The Victron unit is Bluetooth so I can see the charging amount on my phone as well as viewing the display inside the camper.
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