Battery Monitor Setup
Battery Monitor Setup
A properly installed battery monitor is the most important instrument in your system. Select your model below to get started.
Install the Shunt on the Negative Bus
The SmartShunt must be installed on the main negative cable between the battery bank and everything else. All negative loads and chargers must pass through the shunt — otherwise the monitor won’t see those currents and readings will be inaccurate.
Connect the Sense Wire
The SmartShunt has a small positive sense wire (red, with inline fuse). Connect this to the battery positive terminal. This powers the shunt’s electronics and allows it to monitor battery voltage as well as current.
Configure via Victron Connect
Open the Victron Connect app and tap your SmartShunt from the Bluetooth device list. Set your battery capacity (Ah), charge efficiency factor (typically 99% for LiFePO4), and the charged voltage threshold for your battery type.
Connect to Cerbo GX via VE.Direct
Connect the SmartShunt to your Cerbo GX using a VE.Direct cable. It will appear as the battery monitor in the Cerbo’s system overview and on VRM — showing state of charge, voltage, current, and time remaining.
Install the Shunt (Same as SmartShunt)
The BMV-712 uses the same 500A shunt on the main negative cable. All negative connections from loads and chargers must connect to the load side of the shunt — not directly to the battery negative terminal.
Wire the Display Unit
Connect the BMV-712 display unit to the shunt via the supplied RJ12 cable. Mount the display where you’ll naturally glance — at the helm, at the chart table, or near the main panel. The display powers on automatically once the sense wire is connected.
Configure Battery Capacity & Settings
In the BMV-712 menu (hold the right button to enter setup) or via the Victron Connect app over Bluetooth, set your battery bank capacity in Ah, the charged voltage threshold, and the charge efficiency factor (99% for LiFePO4).
Connect to Cerbo GX via VE.Direct
Use a VE.Direct cable from the BMV-712 shunt (not the display unit) to a VE.Direct port on your Cerbo GX. The BMV data will appear in the Cerbo’s system overview and on VRM.
Also in your order? Set these up too:
Readings look off after install?
Shunt placement and synchronisation trips up a lot of people. We’re happy to help you dial it in.
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