Battery Data Logging Kits

Model # BDL-Series

Eagle Eye's BDL-Series Battery Data Logging Kits are designed for battery data logging of cell voltage, string voltage, DC current, and ambient temperature of battery systems under discharge or recharge. The modular design of the BDL-Series allows the units to be customized for use on wide variety of battery systems ranging from 12V to 800V.

Each BDL-Series kit consists of Data Acquisition Cases (DAC’s) which are used to gather measurement data from the battery system. A “String DAC” is used to measure string voltage, DC current (with fitted CT clamp), and ambient temperature. Cell DAC’s are used to measure the voltage of each individual battery cell – one Cell DAC connects to (4) or (12) battery cells, depending on the cell voltage. DAC’s communicate wirelessly to a COM Terminal that connects directly to the PC. Included DataView Management Software allows real-time data analysis and exporting of data to Microsoft Excel.

  • Specifications
  • FAQs
  • Benefits
  • More Info

Technical Specs

Measurement Range:Cell/Unit Voltage: 1 – 16 VDC
String Voltage: 12 – 800 VDC
DC Current: 0 – 1000 A
Temperature: -25 – 55°C (-13 – 131°F)
Accuracy:Cell/Unit Voltage: ±0.5%
String Voltage: ±0.5%
DC Current: ±1%
Temperature: ±1°C (±1°F)
Data Transfer:2 – 15 seconds
Sampling Rate:DAC to Com Terminal: Wireless 433 MHz
COM Terminal to PC via RS-232-to-USB
Communication:50 m (164 ft) unobstructed between DAC and COM Terminal
Power Requirements:DAC: 8 VDC (from connected batteries)
Operating Environment:Temperature: 0 – 55°C (32 – 131°F)
Relative Humidity: 85%
Dimensions:121 x 113 x 40 mm (4.75 x 4.5 x 1.6 in)
Weight:150 g (5.3 oz)


What are some common applications areas for this product?
Common applications include but are not limited to:

  • Power Utilities
  • Telecom/Communications
  • UPS Systems
  • Green Energy
  • Electronics
  • Battery Suppliers and Manufacturers
  • Government/Defense
  • Oil, Gas & Fuel
  • Motive Power
  • Medical/Biotechnology

How do the DACs function?
DACs are connected to the positive terminals of each cell by robust alligator clips. The clips connect to wiring harnesses which power the DACs. The DAC then wirelessly transfer the data to the COM Terminal.

What is the power requirement of the DAC and how much current do they draw?
DAC get their power from the batteries they are connected to. They require a minimum of 8V and use 30mA for operation.

Does the SLB-Series come with software?
Each BDL comes standard with DataView software. This software allows us to live monitor, view test data, and export reports to Microsoft Excel.

How many batteries does a DAC connect to?
Depending on the battery type either 4 or 12 batteries. DACs can connect 12 1.2V, 2V, and 4V cells. 4 cells can be connected for battery types 6V & 12V.


  • Simultaneously monitor cell voltage, string voltage, string current and ambient temperature
  • Lightweight modular DAC design for easy installation and operation
  • Tests 1.2V, 2V, 6V, and 12V Batteries
  • Magnetic contact points for mounting to battery or rack
  • Directly powered by battery, no need for extra power supply
  • One DAC connects to multiple batteries - saving time and money
  • Wireless communication between battery string and BDL DataView Software for data management
  • Monitoring interval is programmed by user for real-time monitoring results and report generation

More Info

The BDL-Series Kit Includes:

  • Cell DAC (quantity of DAC's based on system voltage)
  • String DAC
  • COM Terminal
  • Fitted CT Clamp
  • RS232-USB Adapter
  • Battery Data Logger Software
  • Carrying Case
  • User Manual

In addition to the BDL-Series, Eagle Eye offers the BMS-Series Battery Monitoring Systems which provide battery monitor solutions for full NERC and IEEE compliance on stationary battery systems.

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  • Model #

    Battery Data Logging Kits
    Range: 12 – 800V, 0 – 1000A

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Eagle Eye Power Solutions NERC Compliance

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Companies We Serve
  • US ArmyPennsylvania Power and Light
  • Emerson Network PowerCenovus Energy: Battery Testing & Monitoring
  • Duke EnergyATT