Battery Voltage Recorder BVR22 is a handheld device intended for measuring string voltage, single cell voltage, inter-cell connection voltage, ambient temperature, and cell temperature. Additionally, it enables simultaneous measurement of string voltage and DC current and helps the user to determine the capacity of the battery.

BVR22 can be used for measuring voltage and temperature parameters while battery is either connected or disconnected from the network. BVR22 measures and records voltage and temperature data in its internal memory, with an ability of storing measurements for up to 200 different strings. Measured parameters are displayed on the 2.8 inch color display.

Due to its ability to cover a wide voltage measurement range of up to 600 V DC, large battery banks as well as single batteries can be tested and supervised with this device. Download of collected data to an external computer is available via USB and Bluetooth communication. Detailed analysis and trending of battery banks and single batteries’ state of health is enabled by using DV-B Win software application set.

Main Features

  • Handheld
  • Automatically measures, time-stamps, stores voltages in less than 1 second
  • Simultaneous string (cell) voltage and DC current measurement, for use in the discharge test
  • Voltage measurement range: ± 600 V DC
  • Cell (electrolyte) temperature
  • Ambient temperature
  • RFID cell recognition
  • Easy transfer of measured data to DV-B Win software


Included accessories

  • DV-B Win PC software
  • Mini-USB cable
  • Transport bag and carrying belts
  • Power supply adapter
Recommended accessories

  • Sense cables
  • PT100 temperature indicator
  • Current clamps 30/300 A with    internal battery supply and    extension 5 m
  • Sense cables 2 x 3 m with banana    plugs + dolphin clip
Optional accessories

  • RFID tags 20 pcs
  • Bluetooth communication module

Technical data

Mains Power Supply


  • Type: 2 Cells – 2600 mAh Li-Ion
  • Voltage: 3,7 V
  • Charge time: 6 hours
    AC Adapter

  • Input voltage: 90 – 264 V AC, 50/60 Hz
  • Output voltage: 12 V DC
  • Output current: 1 A



  • Voltage measuring range: 0 – 600 V DC
Measuring range: Typical accuracy: Resolution:
±30 mV DC ±(0,05% rdg + 0,05% FS) 0,01 mV
±300 mV DC ±(0,05% rdg + 0,05% FS) 0,01 mV, for voltages <100 mV
0,1 mV, for voltages >=100 mV
±1 V DC ±(0,05% rdg + 0,05% FS) 0,1 mV
±3 V DC ±(0,05% rdg + 0,05% FS) 10 mV
±30 V DC ±(0,05% rdg + 0,05% FS) 10 mV
±600 V DC ±(0,05% rdg + 0,05% FS) 10 mV, for voltages <100 V
100 mV, for voltages >=100
  • Temperature: -50 °C – +260 °C /-58 °F – +500 °F

  • Type: TFT LCD 2.8 in
  • Viewing Area: 43,2 mm x 57,6 mm / 1.8 in x 2.3 in
  • Resolution: 320 x 240 pixels



  • USB and Bluetooth: Device to PC connection
  • RFID: Tags for cell recognition



  • Internal: 2 GB Micro SD Card


Real-time clock

  • Precision: ±5 seconds per month
  • Calendar: 100 year with leap year detection
  • Time retention: 10+ years (battery removed)


Environmental conditions

  • Temperature: -10 °C to +45 °C / 14 °F to +113 °F
  • Maximum relative humidity 95 % for temperatures up to 31 °C, decreasing linearly to
       40 % relative humidity at 55 °C
  • Pollution degree: 2
  • Insulation category: II


Dimensions and Weight

  • Dimensions: 223 mm x 116 mm x 53 mm
                            8.8 in x 4.6 in x 2.1 in
  • Weight: 0,7 kg / 1.3 lbs



  • Three years

  • Low Voltage Directive 2014/35/EU (CE Conform)
  • Applicable standards, for a class I instrument, pollution degree 2,
       Installation category II : IEC EN 61010-1
  • CAN/CSA-C22.2 No. 61010-1
Electromagnetic Compatibility

  • Directive 2014/30/EU (CE Conform)
  • Applicable standard EN 61326-1

All specifications listed herein are valid at the ambient temperature of + 25 °C (77°F) and with the recommended accessories included.

Specifications are subject to change without notice.

DV-B Win

The software provides the possibility of setting additional parameters (cell voltage, string voltage, capacity and time) for alarming and ending the test. The setting of the profile modes is graphically displayed.

Using DV-B Win software all results saved in device’s internal memory can be downloaded and presented in several forms. The communication with PC can be established with USB cable or by using the optional Bluetooth module. Single-cell voltages can be shown in the table, histogram graph, as well as line view in order to present the behavior of all cell voltages during the discharge process. A test report of collected data can be generated and user-customized for comprehensive battery state-of-health assessment. Numerical and graphical results may be exported from DV-B Win in selectable formats such as Excel spreadsheet, PDF and Word.


Download brochure

Version: 305
Published: 2017-07-19

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