NASA Marine BM1 Clipper Battery Monitor - 12VDC + 5m Cable Included¦For Boats. NASA Marine BM1 Battery Monitor - 12VDC. The BM-1 is designed to monitor performance of 12Volt lead acid battery systems with capacities of up to 600 Amp hours. It is supplied complete with a precision 100 AMP shunt and a prefabricated cable assembly to enable simple DIY installation. The unit continuously monitors voltage, current (charge or discharge), number of amp/hours (charge or discharge), the batteries state of charge and the time to charge or discharge.
This information leads to more efficient use of the battery, which can enhance battery life and reduce the risk of failure. The minimum information required to monitor the state of charge of a battery is the terminal voltage and the charge/discharge current. The BM1+ measures both these parameters and computes the state of charge using a complex, well proven, algorithm. A simple and intuitive display shows the service battery voltage, charge/discharge current, state of charge, and time to charge/discharge.The instrument also warns the user when the charge level is too low so that load can be shed or charging commenced to protect the battery. A resettable Amp Hour counter is provided for checking the efficiency of the charging system or keeping a track of power consumption and a second input lets the user monitor the voltage of the starter batter. The simple display format does not mean the internal software is unsophisticated. In fact two separate algorithms are used. One based on integrating amp hours over the charge and discharge cycle, the second based on an adaptive internal mathematical battery model. A unique feature of the BM1+ is its ability to use information from both algorithms, during the charge/discharge cycles, to continually update its performance. This means that, unlike many other systems that rely solely on amp hour integration, the NASA BM1+ never needs to be re-synchronised with the battery. The algorithm includes Peukert's equation to ensure accuracy over a wide range of load currents. The BM1+ does all this whist consuming a meagre one and a half milliamps.
Some say that they can calculate the state of charge from the terminal voltage only but, as we all know, the terminal voltage falls when the battery is under load and rises when under charge. This fall and rise can be quite substantial, especially when a heavy current is flowing, so how can the terminal voltage be used to calculate anything without knowledge of the magnitude of the current involved? Standard 110mm square Clipper case.
High contrastLCD, backlit for night viewing. Simple operation - 4 keys to selectbacklight, Volt/Amp/State of Charge screen. AMP hours or Time to run. Supply voltage 8 - 16 Volts DC.
Supply current 1.5 milliamps. Battery capacities 5 - 600 AMP Hour.
Charge current 100 AMPS Maximum. For more exciting deals on NASA Marine Items & Accessories. NASA Marine BM1 Clipper Battery Monitor - 12VDC + 5m Cable IncludedFor Boats. Display; 100 AMP shunt link to M8 Ring terminal; 5 m cable. Comes in NASA Marine Retail Packaging so makes a Great Gift.THE LATEST IN TECHNOLOGY DELIVERED WORLDWIDE. The item "NASA Marine BM1 Clipper Battery Monitor 12VDC + 5m Cable IncludedFor Boats" is in sale since Friday, November 17, 2017. This item is in the category "Vehicle Parts & Accessories\In-Car Technology, GPS & Security\GPS & Sat Nav Devices\Other GPS & Sat Nav Devices". The seller is "sustuu" and is located in Harrow, North West London. This item can be shipped worldwide.