Firmware

SmartGPU Update

Important: Do not interrupt power during this update.

Download Now: Version 1.15

Instructions:

  1. Download the firmware below onto the root directory of a USB drive, formatted exFAT or FAT32.

  2. Power ON the SmartGPU and confirm the terms of use. 

  3. Insert firmware USB drive into the SmartGPU USB port marked “DATA”. 

  4. The below screen will appear after the USB drive is inserted:

  5. Choose CONTINUE to proceed with the update process

  6. The following screen will confirm the new version of the firmware to be updated to as well as the current firmware version: 

  7. Press UPDATE to continue with the firmware update. 

  8. The following screen will show a progress bar for the installation of the new firmware. DO NOT turn your unit off or remove the USB stick during this process.

  9. After the bar fills, it will turn green as in the above screenshot. Then the unit will automatically start the reboot process, and a new progress bar will appear with the notification “PLEASE WAIT.”

  10. After this bar fills, the unit will reboot as normal.

  11. Note updated SW Rev on the boot-up screen. The SmartCHARGER is now ready for use.

  12. Go to your app store to update the SmartGPU app on your mobile device.

 


Firmware Versions for Download:

Version 1.15

Version 1.15 Notes

This version introduces an important new feature in the Battery Maintenance Charger function to more accurately charge during the absorption stage. A new Settings option, CHARGER HARNESS RESISTANCE, allows the user to choose a fixed value of 86 milliohms or AUTO-CALIBRATION. Screen shot below: 

The default selection is AUTO-CALIBRATION which measures cable resistance installed in the aircraft through a proprietary scheme. If measured cable resistance is greater than 120 milliohms, current limiting is automatically engaged. Measured charger harness resistance above 220 milliohms may indicate a fault condition (possible corrosion or bad connection) and charging is suspended. 

The FIXED AT 86 MILLIOHMS selection is appropriate if the provided harness kit has been installed. With this selection, current limiting and suspension features are not enabled. 

This firmware release also includes the following refinements:

  • Detection of excessive parasitic load in both maintenance mode and scheduled charge.

  • Improved convergence to target absorption and float voltages

  • Increased time for bulk and absorption modes to accommodate larger battery types

  • Improved user feedback when center button is pressed and held

  • Improved timing of initial charge delay and scheduled charge