Victron Energy BMV-712 Smart Battery monitoring module

The BMV-712 Smart isa high-precision battery monitor. The main function of a battery monitor is to calculate the ampere-hours consumed and the state of charge of a battery. The ampere-hours consumed are calculated by integrating the current flowing in and out of the battery.

With built-in Bluetooth, the BMV Smart is ready for the age of the Internet of Things (IoT). As Bluetooth is implemented in most other Victron Energy products, wireless communication between products will simplify system installation and improve performance.

Use a smartphone or other Bluetooth-enabled device to:

• Customise settings
• Monitor all important data on a single screen
• View historical data
• Update the software when new features are available

Easy installation

All electrical connections are made via the quick connection board on the power shunt. The shunt is connected to the monitor using a standard RJ12 telephone cable. Included in the scope of delivery: RJ 12 cable (10 m) and battery cable with fuse (2 m); no other components required.

Also included are a separate front frame for a square or round appearance of the display, a locking ring for rear mounting and screws for front mounting.

Medium voltage monitoring

A bad cell or a bad battery can destroy a large, expensive battery bank. If batteries are connected in series, a timely warning can be generated by measuring the centre voltage. Further information can be found in the BMV manual, section 5.2.

Very low current consumption from the battery

Current consumption: 0.7Ah per month (1mA) @12V and 0.6Ah per month (0.8mA) @ 24V

Li-ion batteries in particular have practically no capacity left when they are discharged until the low voltage is switched off. After disconnection due to low cell voltage, the capacity reserve of a Li-ion battery is about 1Ah per 100Ah of battery capacity. The battery will be damaged if the remaining capacity reserve is removed from the battery. A residual current of e.g. 10mA can damage a 200Ah battery if the system is left in a discharged state for more than 8 days.

Bi-stable alarm relay

Prevents increased current consumption in the event of an alarm.

Standard features:

• Battery voltage, current, power, ampere hours consumed and state of charge
• Remaining time at the current discharge rate
• Programmable visual and audible alarm
• Programmable relay to switch off non-critical loads or operate a generator if required
• 500 amp quick-connect shunt and connection kit
• Shunt selection option up to 10,000 amps
• VE.Direct communication port
• Stores a wide range of historical events that can be used to analyse usage patterns and battery condition
• Wide input voltage range: 6.5 - 70V
• High resolution current measurement: 10 mA (0.01A)
• Low current consumption: 2.9Ah per month (4mA) @12V and 2.2Ah per month (3mA) @ 24V

In the Support tab there is an instructional video on how to install the BMV-712 Smart Monitor and how to synchronise lithium-ion batteries and optimise the synchronisation parameters.

Technical data

Input voltage range DC [V]: 6.5 - 70

Recommended battery capacity [Ah]: 1 - 9999

Weight [kg]: 1.02

Dimensions [mm]: 69 x 69

Communication type: Bluetooth; VE.Direct

Category: Monitoring / Communication

Product warranty: 5 years