Victron Battery Monitor BMV-702 Retail - BAM010702000
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The BMV-702 is a high precision battery monitor, acting as a battery ‘fuel gauge’, time-to-go indicator and much more.
What is the difference between BMV 700 and 702?The 702 has the same features as the 700 but in addition (just like the 712 Smart) it has an auxiliary input. This can be used to measure the voltage of a second battery or temperature using the temperature accessory, or midpoint voltage.
BMV-702 additional features
The remaining battery capacity depends on the ampere-hours consumed, discharge current, temperature and the age of the battery.
Complex software algorithms are needed to take all these variables into account.
Next to the basic display options, such as voltage, current and ampere-hours consumed, the BMV-702 displays state of charge, time to go, and power consumption in Watts.
The BMV-702 also features an additional input which can be programmed to measure the voltage of a second battery, battery temperature and corresponding alarm and relay settings, or midpoint voltage (see below).
No additional parts needed.
Note: suitable for systems with grounded negative only (battery monitor is not isolated from shunt)
Bluetooth Smart
Use the Bluetooth Smart dongle (not included) to monitor your batteries on Apple or Android smartphones, tablets, macbooks and other devices.
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: RJ12 cable (10m) and battery cable with fuse (2m) with no other components needed.
Also included are a separate front bezel for a square or round display appearance, a securing ring for the rear mounting and screws for the front mounting.
Easy to program
A quick install menu and a detailed setup menu with scrolling texts assist the user when going through the various settings.
Alternatively, choose the fast and easy solution: download the smartphone app when combined with Bluetooth Smart dongle (Not included).
Midpoint voltage monitoring (BMV-702 only)
This feature, which is often used in industry to monitor large and expensive battery banks, is now for the first time made available at a low cost, to monitor any battery bank.
A battery bank consists of a string of series connected cells. The midpoint voltage is the voltage halfway along the string. Ideally, the midpoint voltage would be exactly half of the total voltage. In practice, however, deviations will be seen, that depend on many factors such as a different state of charge for new batteries or cells, different temperatures, internal leakage currents, capacities and much more.
Large or increasing deviation of the midpoint voltage, points to improper battery care or a failed battery or cell. Corrective action following a midpoint voltage alarm can prevent severe damage to an expensive battery. Please consult the BMV manual for more information.
Standard 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: 6.5 – 95V
- High current measurement resolution: 10 mA (0.01A)
- Low current consumption: 2.9Ah per month (4mA) @12V and 2.2Ah per month (3mA) @ 24V
More about midpoint voltage
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.
We recommend our Battery Balancer (BMS012201000) to maximize service life of series-connected batteries.
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