AUTOOL BT30 ECU Emergency Power Supply Cable Includes 3A Fuse

The AUTOOL BT30 ECU Emergency Power Supply Cable is an OBD emergency power cable designed to keep the vehicle ECU and electronic systems powered during battery replacement. It helps prevent data loss, reset issues, and electronic setting loss while allowing users to observe real-time voltage and current changes through the built-in high-definition digital display. BT30 combines OBD emergency power support, voltage and current display, leakage detection assistance, insulated clamps, and fuse protection for safer battery replacement and electrical observation. Review the BT30 operating voltage, operating current, temperature range, interface, fuse, cable length, and structure before use. Use a fully charged 12V spare battery and connect BT30 correctly before removing the original vehicle battery. Keep the vehicle power switch OFF during the operation. The new BT30 improves the original ECU power supply function by adding display, leakage observation, electrical protection, and insulation upgrades. The packing list uses one most relevant package image only, showing the BT30 product box, user manual, and main OBD emergency power cable. Key features • Digital Display: The built-in display lets users observe voltage and current changes during operation instead of working blind. • Insulated Cable: The insulated, fully enclosed cable design is described to reduce electrical leakage risk and improve handling comfort. • 3A Fuse Guard: A built-in 3A fuse is included to help protect the device and vehicle ECU during a circuit fault. • Product: AUTOOL BT30 ECU Emergency Power Supply Cable • Product Type: OBD emergency power cable for battery replacement and leakage detection support • Main Function: Maintains ECU and vehicle electronic system power during battery replacement