The Autel OBDII Memory Saver is a specialized tool designed to maintain power to a vehicle's onboard electronics when the main battery is disconnected, such as during a battery replacement. Polarity & Surge Protection: Ensures the device is protected against incorrect connections, safeguarding both the vehicle's electronics and the memory saver itself. Protects the vehicle's sensitive electronics from voltage spikes or surges that could occur during the power transfer process. Alligator Clips: Includes clips to connect to a 12-volt backup battery. LED Status Indicators: Three LEDs provide clear visual feedback on the power supply status, ensuring the user knows the device is functioning correctly. Saves Time and Effort: Eliminates the need to re-code or reconfigure systems after a battery replacement, saving time and avoiding potential headaches. Wide Compatibility: Works with most vehicles equipped with an OBDII/EOBD port.