Victron Energy BMV-712 Smart Battery Monitor with Shunt 6.5–70 VDC — Black, Bluetooth & High‑Precision

The Victron Energy BMV-712 Smart is a high-precision battery monitor with built-in Bluetooth and a heavy-duty shunt for accurate state-of-charge, voltage, current and energy tracking across 6.5–70 VDC systems.

The BMV-712 Smart combines a rugged external shunt with an easy-to-read display and wireless connectivity so you can monitor battery health and performance on-site or from your phone. Designed for marine, RV, off-grid and industrial battery systems, it reports current flow, remaining time, and historical usage while supporting additional inputs for temperature or a second battery. The unit integrates with Victron’s ecosystem for remote monitoring when paired with VX- or GX-series hardware.

How does the BMV-712 measure state of charge and run-time?

The BMV-712 uses coulomb-counting to track charge in and out of the battery combined with voltage measurements to refine the state-of-charge estimate. It continuously updates remaining time based on current draw and recent discharge trends, giving a realistic runtime projection under current load.

• Shunt-based coulomb counting for precise amp-hour accounting.
• Voltage compensation improves SOC accuracy across load changes.
• Runs time-to-empty estimates that adjust with actual load.
• View historical consumption graphs in Victron Connect.

What connectivity options are available for remote monitoring?

The monitor has built-in Bluetooth to link directly to the Victron Connect app on smartphones and tablets for local setup, viewing, and logging. For remote internet-based monitoring, connect the BMV to a GX device via VE.Direct (cable sold separately) and publish data to VRM for worldwide access.

• Integrated Bluetooth for phone/tablet setup and display.
• VE.Direct compatibility to connect with GX systems for VRM access.
• Display and app show real-time and historical metrics.
• Easy local configuration using the front panel or Victron Connect.

Can the BMV-712 handle temperature sensing and multiple batteries?

Yes — an auxiliary input can be configured to measure battery temperature, midpoint voltage for large banks, or the voltage of a second battery. This flexibility helps protect battery life by enabling temperature-compensated charging and imbalance monitoring.

• Program the extra input for temperature, midpoint, or second battery voltage.
• Relay output is programmable to control alarms or external devices.
• Temperature compensation improves charging accuracy and battery longevity.
• Midpoint measurement helps detect and address cell-bank imbalances.

What should I know about installation and safety?

Installation involves high-current wiring and a shunt enclosure; correct placement and secure connections are essential for accurate readings and safety. Because of the shunt’s role in carrying main current, follow all electrical codes and consider professional installation if you are not familiar with battery systems.

• Shunt is housed in a protective enclosure for high-voltage applications.
• Follow local electrical codes and use appropriate gauge wiring and fuses.
• Incorrect wiring or placement can produce inaccurate readings or hazards.
• Consult a licensed electrician or certified installer when unsure.

Who this is for: The Victron Energy BMV-712 Smart suits boat owners, RVers, off-grid homeowners, and technicians who need accurate, real-time insight into 6.5–70 V battery systems and want both local Bluetooth access and optional remote monitoring via Victron GX hardware. Choose it when you require precise amp-hour accounting, configurable inputs, and integration with Victron monitoring tools for proactive battery management.