Check the listing for details. OBD II Vehicle ECU Emergency Power Supply Cable Memory Saver Replacement Tool. Condition: New. Listed at 9.99 USD. AUTOOL BT30 Auto ECU Emergency Power Supply Battery Clip is a special emergency rescue device for car batteries. It is mainly used to provide vehicles with temporary power backup to start the engine or perform other necessary electrical operations when the vehicle battery runs out of power or when starting is difficult. Replacing the car battery without backup power may not only lose various memories of the car, but also cause display irregularities. Restoration may also require readjustment at the dealer. Emergency start If the vehicle battery is flat or completely discharged, the BT30 battery clip can quickly supply the vehicle with sufficient power to start the engine. Power supply: In addition to starting the engine, the BT30 battery clip can also supply power to other electrical systems in the vehicle, such as the stereo system and lights. Safety protection: The device has built-in over-current, over-voltage and short-circuit protection to ensure that no damage is caused to the vehicle or personnel during use. Easy to use: The BT30 battery clamp is designed to be simple and intuitive, allowing users to easily connect and disconnect the battery without complicated operating procedures. Function: Protects the memory when replacing the car battery and prevents resetting of settings such as car dashboard information, digital clock, stereo, memory location, ABS, etc. For the 12-volt battery connection.Specification Cable Length: 750mm / 29.52in Color: Black and Red Weight: 145g Package Include: 1piece x AUTOOL BT30 Emergency Power Battery Clip MORE PRODUCTSMORE PRODUCTSMORE PRODUCTS 3 YEARS WARRANTY Delivery DetailsMORE PRODUCTS MORE PRODUCTS MORE PRODUCTS 3 YEARS WARRANTY Delivery Details