Protects each individual cell of a Victron lithium iron phosphate (LiFePO4 or LFP) battery. Each individual cell of a LiFePO4 battery must be protected against over voltage, under voltage and over temperature.

Victron LiFePO4 batteries have integrated Balancing, Temperature and Voltage control (acronym: BTV) and connect to the VE.Bus BMS with two M8 circular connector cord sets. The BTVs of several batteries can be daisy chained. Up to ten batteries can be paralleled and up to four batteries can be series connected (BTVs are simply daisy-chained) so that a 48V battery bank of up to 3000Ah can be assembled. Please see our LiFePO4 battery documentation for details.

The BMS will:
– shut down or disconnect loads in case of imminent cell under voltage,
– reduce charge current in case of imminent cell overvoltage or over temperature (VE.Bus products only, see below), and
– shut down or disconnect battery chargers in case of imminent cell overvoltage or over temperature.

Protects 12V, 24V and 48V systems.
The operating voltage range of the BMS: 9 to 70V DC.

Communicates with all VE.Bus products
The VE.Bus BMS connects to a MultiPlus, Quattro or Phoenix inverter with a standard RJ45 UTP cable.

Victron BMV-712 Grey Smart Battery Monitor with Built-In Bluetooth

AllGo OutDoors — Fri, 30 Jan 2026 06:02:01 +0000

Built similarly to and with all the functions of its predecessor, the BMV-702, Victron has introduced built-in bluetooth connectivity to its BMV-712 Smart Battery Monitor, thus giving you the ability to access important information from your battery monitor via a smart phone or tablet. Like any good battery monitor, it allows you to better maintain your batteries and track your energy usage and charging systems. The monitors pay for themselves many times over, and we can’t imagine being without them on any battery-based system. When an independent, stand-alone system is desired, the Victron BMV series is an excellent choice.

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

Download the Victron Bluetooth app
Use a smartphone or other Bluetooth-enabled device to
– customize settings
– monitor all important data on single screen
– view historical data
– update the software when new features become available

Easy to install
All electrical connections are to the quick-connect PCB on the current shunt. The shunt connects to the monitor with a standard RJ12 telephone cable. Included: RJ 12 cable (10 m) and battery cable with fuse (2 m); no other components needed. Also included are a separate front bezel for a square or round display appearance, a securing ring for rear mounting and screws for front mounting.

Midpoint voltage monitoring
One bad cell or one bad battery can destroy a large, expensive battery bank. When batteries are connected in series, a timely warning can be generated by measuring the midpoint voltage. Please see the BMV manual, section 5.2, for more information.

Very low current draw from the battery
Current consumption: 0.7Ah per month (1mA) @12V and 0.6Ah per month (0.8mA) @ 24V
Li-ion batteries have virtually no capacity left when discharged until low voltage shutdown. After shutdown due to low cell voltage, the capacity reserve of a Li-ion battery is approximately 1Ah per 100Ah battery capacity. The battery will be damaged if the remaining capacity reserve is drawn from the battery. A residual current of 10mA for example may damage a 200Ah battery if the system is left in discharged state for more than 8 days.

Bi-stable alarm relay
Prevents increased current draw in case of an alarm

Other features
– Battery voltage, current, power, ampere-hours consumed and state of charge
– Remaining time at the current rate of discharge
– Programmable visual and audible alarm
– Programmable relay, to turn off non critical loads or to run a generator when needed
– 500 Amp quick connect shunt and connection kit
– Shunt selection capability up to 10.000 Amps
– VE.Direct communication port
– Stores a wide range of historical events, which can be used to evaluate usage patterns and battery health
– Wide input voltage range: 9.5 – 95V
– High current measurement resolution: 10 mA (0.01A)
– Additional input to measure voltage (of a second battery), temperature or midpoint voltage, and corresponding alarm and relay settings.

Battery Monitor	BMV-712 Smart
Supply voltage range	6.5 – 95 VDC
Current draw, back light off	< 1mA
Input voltage range, auxiliary battery	6.5 – 95 VDC
Battery capacity (Ah)	20 – 9999 Ah
Operating temperature range	-40 – 50°C (-40 – 120°F)
Measures voltage of second battery, or temperature, or midpoint	Yes
Temperature measurement range	-20 – 50°C
VE.Direct communication port	Yes
Bistable relay	60V / 1A normally open (function can be inverted)
RESOLUTION & ACCURACY (with a 500 A shunt)
Current	± 0.01A
Voltage	± 0.01V
Amp hours	± 0.1 Ah
State of charge (0 – 100%)	± 0.1%
Time to go	± 1 min
Temperature (0 – 50°C or 30 – 120°F)	± 1°C/°F
Accuracy of current measurement	± 0.4%
Accuracy of voltage measurement	± 0.3%
INSTALLATION & DIMENSIONS
Installation	Flush mount
Front	63mm diameter
Front bezel	69 x 69 mm (2.7 x 2.7 inch)
Body diameter	52 mm (2.0 inch)
Body depth	31 mm (1.2 inch)
ACCESSORIES
Shunt (included)	500A / 50mV
Cables (included)	10 meter 6 core UTP with RJ12 connectors, and cable with fuse for ‘+’ connection
Temperature sensor	Optional (ASS000100000)

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Batteries and Battery Monitors Archives - Allgo Outdoors

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Victron BMV-712 Grey Smart Battery Monitor with Built-In Bluetooth