This set includes (see pictures):
Battery ‘fuel gauge’, time remaining indicator and much more The remaining battery capacity depends on the ampere hours consumed, the discharge current, the temperature and the age of the battery. Complex software algorithms are required to account for all these variables.
In addition to the main display options such as voltage, current and ampere hours consumed, the BMV-700 series also displays charging status, time remaining and power consumption in watts.
The BMV-702 has an extra input that can be programmed to measure voltage (or a second battery), temperature or midpoint voltage (see below).
Bluetooth Smart Use the Bluetooth Smart dongle to monitor your batteries with Apple or Android smartphones, tablets, macbooks and other devices.
Easy to install All electrical connections are made with the quick disconnect PCB on the power shunt. The shunt is connected to the monitor with a standard RJ12 telephone cable. Included: RJ 12 cable (10m) and battery cable with fuse (2m); no further parts are needed. Also included are a separate bezel for the front appearance of a square or round display, a retaining ring for rear mounting, and screws for front mounting.
Easy to program (with your smartphone!) A quick installation menu and a detailed setup menu with scrolling text helps the user to navigate through the various settings. You can also opt for the quick and easy solution: download the smartphone app (Bluetooth Smart dongle required)
Midpoint voltage monitoring (BMV-702 only) This feature, commonly used in the industry for monitoring large and expensive battery banks, is now being made available at a low cost for the first time, so that any battery bank can be monitored. A battery bank consists of a series of cells connected in series. The midpoint voltage is the voltage halfway through this sequence. Ideally, this midpoint voltage is exactly half of the total voltage. In practice, however, deviations occur that depend on many factors, such as different charge status for new batteries or cells, different temperatures, internal leakage currents, capacities and much more. Large or increasing deviations from the midpoint voltage indicate improper maintenance of the battery or a defective battery or cell. Corrective action after a midpoint voltage alarm can prevent serious damage to an expensive battery. For more information, see the BMV manual. Standard properties
– Battery voltage, current, power, ampere hours consumed and state of charge
– Time remaining at the current discharge rate
– Programmable visual and audible alarm
– Programmable relay to turn off non-critical loads or to run a generator when needed.
– 500 A shunt with quick disconnect and connection kit
– Shunt choice up to 10,000 amperes
– VE.Direct communication port
– Can store a variety of historical events that can be used to evaluate usage pattern and battery condition
– Wide input voltage range: 9, 5 – 95V – High current measurement resolution: 10 mA (0.01A)
– Low power consumption: 2.9 Ah per month (4 mA) at 12V and 2.2 Ah per month (3 mA) at 24V
Additional features of the BMV-702 Additional input for measuring voltage (from a second battery), temperature or midpoint voltage and associated alarm and relay settings.
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. See the BMV manual, section 5.2, for more information. We recommend our Battery Balancer (BMS012201000) to maximize the lifespan of series-connected batteries.