OptiLedger provides a fast, easy driveline and battery health check for EV and PHEV vehicles. The tool reads vehicle data from internal control units (via CAN) to deliver a rapid battery health assessment, presented in a graded health report. It is intended for professional organizations that buy, sell, or maintain vehicle fleets. Use requires a signed agreement with the OptiLedger provider; customers receive one or more user IDs, activation tokens, and CAN adapters to access the vehicle communication buses..