| Product Series: IC | Article No: FAQ112 |
Difficulties when uploading a new charge profile (algorithm) can be caused by older (pre-2017) software on the IC series chargers which do not support newer algorithms.
Symptoms could include E020, E026 and/or a flashing yellow/amber/orange triangle.
First, make sure you have downloaded the latest version of the algorithm deploy file since older versions of the file may not be compatible with newer IC software. As of October 2026, all deploy files on this support site have been updated to be compatible with all IC software.
Download Algorithms for IC Series Chargers
If the charger continues showing errors when attempting to upload the updated deploy file, the charger may have incompatible user settings preventing the upload. Software update files can be downloaded below which will update the charger to factory default settings.
940-0001_DQT01-C041_rev5_66FB: IC650 models (includes ERIC/Club Car models)
942-0001_DQT01-C041_rev5_BF8: IC900 models
941-0001_DQT01-C041_rev5_BF15: IC1200 models
Open the .zip file and copy the "CHARGER" folder to a blank USB drive, then insert the drive into the USB port on the charger. Leave the USB drive inserted until the top, triangular LED turns solid green, as shown here:
IC Series: How to reprogram, reflash or upgrade software and algorithms via USB
The software will upload automatically and set the charger to algorithm #71. You can now upload other algorithms, which can be downloaded here:
Download Algorithms for IC Series Chargers
As these chargers are outside our five-year support window, these remedies are provided as-is only and the user assumes risk of use of these files.