BATLOGGER S2 Firmware 1.0

BATLOGGER S2 Firmware 1.0

Device Firmware

Firmware 1.0.3. Compatible with BATLOGGER S2 devices.


  • BATLOGGER S2 Firmware
  • Update instructions


  1. Make sure that the device battery is fully charged.
  2. Download the firmware file (ZIP) to the computer.
  3. Connect the device with the USB cable to the computer.
  4. Delete any old firmware (.upd) file from the SD cards root folder.
  5. Extract the downloaded ZIP file and copy the extracted files to the SD card. The file ‘BLS2_X.X.X.upd’ must be placed in the root folder of the SD card.
  6. Eject the device from the computer.
  7. The device LED blinks in rapid succession while the firmware is being installed.

See for further instructions.


(1.0.3 Released 07.12.2021)

  • Various stability improvements

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