Victron Battery Monitor BMV-712 Black Smart | BAM030712200 | 500A Shunt

The precision battery monitor BMV-712 constantly monitors the status of your battery. Battery current and voltage are continuously measured. With this data, the current state of charge of your battery is accurately calculated and provides a reliable value, so you always know how much energy is still available.

With integrated Bluetooth

With its built-in Bluetooth, the BMV Smart is ready for the age of the Internet of Things (IoT). Most other Victron Energy products also feature Bluetooth. Wireless communication between products thus simplifies system installation and improves performance. The Victron Connect app can be downloaded for free from the Victron homepage, the App Store or Google Play.

By integrating the Bluetooth interface into the monitor, the VE.Direct interface is free for other uses, for example to connect the BMV to the Color Control GX.

Standard functions of the battery monitor:

• Display of battery voltage, current, power, consumed ampere-hours and state of charge
• Display of remaining runtime at current discharge rate
• Programmable visual and audible alarm
• Programmable potential-free switching contact that switches when a settable state of charge or a certain battery voltage is reached, e.g. to switch off non-essential loads or to switch on a generator if necessary or to perform other actions and, of course, switches back when a programmable switching threshold is reached.
• High current measurement resolution 10 mA (0.01 A)
• Wide input voltage range: 9.5 – 95V
• One 500 Amp quick-connect shunt and a connection kit
• Shunt capacity up to 10,000 Amps optionally available
• VE.Direct communication port
• Stores a wide range of historical data that can be used to evaluate usage patterns and battery condition (historical values).

How it works:

Battery capacity is measured in ampere-hours (Ah). For example, a battery that delivers a current of 5A over a period of 20 hours has a capacity of 100 Ah (5x20=100). The BMV continuously measures the current flow into and out of the battery and calculates the amount of energy supplied or withdrawn. However, since the effective capacity of a battery also depends on age, discharge current, and temperature, a simple consideration of ampere-hours is not sufficient. For example, if a 100 Ah battery is discharged in two hours, it will only have an available capacity of 56 Ah due to the high discharge current.

Apparently, the battery capacity is almost halved. This phenomenon is called Peukert efficiency. In addition, the capacity is further reduced by high or very low temperatures. Simple recording of ampere-hours or voltage values is therefore not sufficient to assess the state of charge of a battery. The BMV battery monitor displays both the actually withdrawn Ah and the current state of charge corrected with the Peukert coefficient and charge efficiency. By observing the state of charge, the battery condition can be best assessed. The value is given in percent, where 100% means fully charged and 0% means completely empty. This can be compared to the fuel gauge in a car.

Additional functions of the BMV-712 compared to the BMV-702:

Integrated Bluetooth dongle, for transmitting the values of the battery computer to smartphone or tablet (iOS or Android)

Midpoint voltage monitoring

This function, often used in industry to monitor large and expensive battery banks, is now available for the first time at a more affordable price, so that any battery bank can be monitored. A battery bank consists of a string of cells connected in series. The midpoint voltage is the voltage after half the string. Ideally, the midpoint voltage is exactly half of the total voltage. In practice, however, there are deviations. These depend on numerous factors, such as a different state of charge for new batteries or cells, different temperatures, internal leakage currents, capacities, and many more.
Large or increasing deviations in the midpoint voltage indicate improper battery care or a faulty battery or cell. Corrective measures as a result of a midpoint voltage alarm can prevent serious damage to an expensive battery. Please also refer to the manual for more information.

Easy programming

A quick installation menu and a detailed setup menu with scrolling assist the user when making the various settings. Please refer to the manual for further details.

BMV-712: Cost-effective, a monitor with very high resolution

• Highest resolution: 10mA (0.01A) with 500A shunt
• Can be used with 50, 60 or 100mV shunts, nominal current from 500A to 10,000A
• Very low consumption: 4mA @ 12V, 3mA @ 24V
• Very easy to connect: BMV-702 comes with 500A shunt, 10 meters RJ12 UTP
• Cable and 2 x 2 meter battery cable including fuse supplied. A
• Ground cable from shunt to battery minus is additionally required.
• Easy to install control panel (round or square), ring for concealed
• Installation (rear panel mounting) or screws for surface mounting
• Wide voltage range: 6.5 - 95V DC without series resistor
• VE.Direct to USB interface (for connection to a computer)
  

Optionally available:

• VE.Direct to USB interface cable for connection to a computer
• The PC application software BMV-Reader displays all current readings including historical data on a computer. It can also log the data in a CSV format file. This software is available for free and can be downloaded.
• Larger measuring shunt, 1000A and 2000A
• Connection cable from the measuring shunt to battery minus
• Battery temperature sensor BTS-702
  

Scope of delivery:

• Battery monitor BMV-712 with black housing
• Shunt 500A
• 10m UTP connection cable (between shunt and monitor)
• 2 x 2m battery connection cable with fuse