The Victron BMV-712 Smart is a battery monitor for 12V, 24V and 48V systems. It tracks state of charge, voltage, current, power and consumed amp-hours, and sends the data over Bluetooth to the VictronConnect app on iOS and Android.

Key features

• Bluetooth, built-in Bluetooth Smart (BLE) connects directly to VictronConnect, no dongle needed.
• Measurements, state of charge, voltage, current up to 500A via the included shunt, power in watts and consumed amp-hours.
• Dual voltage input, a second input can monitor an auxiliary or starter battery, or midpoint voltage on a bank.
• Relay output, programmable single-pole relay for alarms or switching based on voltage, SOC or temperature.
• Display, backlit LCD with rotary encoder for readout without a phone.
• VE.Smart Networking, shares battery data with other Victron devices, and works with VRM when connected to a GX device.

How it works

A 500A/50mV shunt measures current in and out of the battery. The BMV-712 uses this to calculate state of charge by coulomb counting, which holds up better under load than voltage-based estimates. It logs charge cycles, deepest discharge, average discharge and time since last full charge. Settings such as battery capacity, Peukert exponent, charge efficiency factor and tail current are all adjustable through VictronConnect.

Applications

Suited to off-grid solar systems, marine dual-battery setups with a house bank and starter battery, motorhome and campervan leisure batteries, and backup power systems where battery condition needs tracking. The shunt fits on the negative conductor between the battery negative terminal and the rest of the system's negative connections.

What's included

• BMV-712 Smart display unit
• 500A / 50mV shunt
• 10 metre connection cable between shunt and display
• Mounting hardware