Victron Energy BMV-712 Smart battery monitor 6.5–70 VDC with external shunt, Bluetooth & programmable relay

The Victron Energy BMV-712 Smart is a high-precision battery monitor with integrated shunt and Bluetooth that tracks state of charge, voltage, current, and energy for 6.5–70 VDC systems.

Designed for boats, RVs, off-grid solar arrays, and industrial battery banks, the BMV-712 Smart gives a clear, continuous picture of battery condition and consumption. It combines an accurate external shunt, a readable display, and wireless reporting so you can see live and historical data locally or remotely. The unit’s extra input and programmable relay add flexibility for temperature sensing, midpoint monitoring, or managing auxiliary devices.

How does the BMV-712 Smart measure and display battery health?

The BMV-712 uses a precision shunt to measure current flow and integrates voltage sensing to calculate state of charge and remaining energy. The built-in display presents percent state of charge, voltage, current, and time/energy remaining, while Victron Connect shows historical trends and charts for analysis.

• Accurate current measurement via supplied external shunt
• On-screen readout: SoC, volts, amps, and time/energy remaining
• Historical logging visible in Victron Connect app

Can I monitor the battery wirelessly or integrate with remote systems?

Yes — the BMV-712 features built-in Bluetooth for direct connection to smartphones and tablets using Victron Connect. For remote monitoring, connect the BMV to a GX device via VE.Direct (cable sold separately) and upload data to the Victron Remote Management (VRM) portal.

• Bluetooth for local wireless setup and monitoring
• VE.Direct compatibility for GX integration and VRM access
• View live readings or historical charts from mobile devices

What extra inputs and control options does it provide?

The BMV-712 includes an additional programmable input and a relay output. The extra input can measure battery temperature, a midpoint voltage, or the voltage of a second battery; the relay can be programmed for alarms, automatic generator start, or load control.

• Programmable input for temperature, midpoint, or second battery voltage
• Configurable relay for alarms or device control
• Flexible settings via display or Victron Connect app

Are there safety or installation considerations I should know?

Because the BMV-712 handles high currents and voltages, correct installation is essential. The shunt is enclosed in a protective housing to reduce risk, but wiring, fuse placement, and mounting should follow local electrical codes and good practice for battery systems.

• Shunt supplied in special enclosure for safety
• Follow local electrical codes and best wiring practices
• Consult a licensed electrician or qualified installer when unsure

Who is this for? The Victron Energy BMV-712 Smart is intended for owners and technicians who need reliable, precise battery monitoring in 6.5–70 VDC systems: marine and RV owners, off-grid solar installers, fleet and industrial maintenance teams, and anyone who wants both a readable local display and wireless or remote monitoring capability. It’s especially useful where accurate state-of-charge, current tracking, and programmable inputs/relays help protect battery life and manage power-hungry loads.