Victron Energy BMV-702 Black Retail Battery Monitoring Module

DC input voltage range [V]: 6.5 - 95

Recommended battery capacity [Ah]: 1 - 9999

Weight [kg]: 0.74

Dimensions [mm]: 69 x 69

Communication type: Bluetooth; VE.Direct

Category: Monitoring/Communication

Product warranty: 5 years

The BMV-702 Black is a highly accurate battery monitor. The essential 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 into or out of the battery.

Midpoint voltage monitoring

This feature, often used in industry to monitor large and expensive battery banks, is now being made available for the first time at a low cost, to monitor any battery bank.

A battery bank consists of a series of cells connected in series. The midpoint voltage is the voltage at the middle of the string. Ideally, the midpoint voltage should be exactly half the total voltage. In practice, however, deviations are observed depending on many factors, such as different states of charge of the batteries or new cells, different temperatures, internal leakage currents, capacities, and much more.

A high or increasing deviation in midpoint voltage indicates improper battery care or a faulty battery or cell. Corrective action following a midpoint voltage alarm can prevent serious damage to an expensive battery. For more information, see the BMV manual.

Easy to install

All electrical connections are made on the quick-connect PCB of the current shunt. The shunt connects to the monitor with a standard RJ12 telephone cable. Included: RJ12 cable (10 m) and fused battery cable (2 m); no other components are required.

Also included is a separate front bezel for a square or round display look, a mounting ring for rear mounting, and screws for front mounting.

Standard Features:

• Voltage, current, power, ampere-hours consumed and battery state of charge
• Time remaining at current discharge rate
• Programmable visual and audible alarm
• Programmable relay, to turn off non-critical loads or to run a generator if needed
• 500 Amp Quick Connect Shunt and Connection Kit
• Shunt selection capacity up to 10,000 Amps
• Shunt selection capacity up to 10,000 Amps.
• VE.Direct direct communication port
• Stores a wide range of historical events, which can be used to assess usage patterns and battery health.
• Wide input voltage range: 6.5 - 95V
• High current measurement resolution: 10 mA (0.01A)
• Low current consumption: 2.9Ah per month (4mA) at 12V and 2.2Ah per month (3mA) at 24V

On the Support tab, you can find an instructional video on how to install the BMV-7XX series monitor and optimize the synchronization parameters.