Key benefits and why you need it - Keeps car electronics alive during battery replacement, so memory for radios, clocks, and settings is preserved. - Compatible with any 12V DC power source and various car battery setups, including starting conditions and memory saver applications. - Shows real-time voltage and current on the unit, with color indicators (red for voltage, green for current) for quick status checks. - Built-in protection features for safer use during battery replacement, including reverse connection protection, protection against incorrect connections, leakage detection, and other safety functions. What it does - The device acts as a car battery replacement memory saver that works with 12V DC sources and car batteries, including during running starts and when using battery memory saver DC 12V acid batteries or automotive 12V power outlets. It displays voltage and current, with red indicating voltage and green indicating current. How to use 1. Connect two crocodile clips to a 12V DC source from the battery. When connected correctly, the red indicator will be on. 2. Insert the plug into the OBD port of the car. You will hear a continuous beeping sound, signaling that the system is active and the memory saver is protecting the car’s electronics. 3. With the beeping ongoing, you can remove the old battery from the car and install the new battery. Important safety and usage notes - The device includes reverse connection protection, protection against incorrect connections, a self-protection mechanism, and leakage detection to enhance safety during operation. - If the original vehicle battery is heavily discharged, using the memory saver to pass current can cause high current draw. The unit’s fuse is 5A, and attempting to deliver excessive current can blow the fuse and prevent proper battery replacement. - Correct practice: power the vehicle from the original battery to restart and fully charge the battery, then perform the replacement. Current and compatibility details - Works with any 12V DC power source and car battery setups, including running starters and memory saver applications, using DC 12V sources and automotive 12V power outlets. - Memory saver displays both voltage and current; voltage is shown in red, current in green. Use scenarios - Scenario 1: You need to replace an aging car battery in a vehicle without losing radio presets or memory for ECU settings. Connect the memory saver, start the replacement process, and ensure continuous protection of vehicle electronics during the swap. - Scenario 2: In a home workshop or garage, you are replacing a car battery and want to monitor the power supply. Use the unit with a 12V DC source to keep memory intact while performing the battery swap. - Scenario 3: At a service center, you replace batteries in multiple vehicles. The device provides a safe, protected way to maintain memory and prevent electrical resets, with clear voltage/current readings to assist technicians. Specifications and safety at a glance - Input: 12V DC power source - Protection: reverse connection protection, incorrect connection protection, leakage detection, and other safety features - Display: displays voltage (red) and current (green) - Fuse: 5A - Function: supports car battery replacement memory saver with continuous beeping signal when connected to vehicle OBD port This description preserves the original product functions, models, and practical usage while presenting a clear, customer-friendly overview with concrete benefits, use cases, and safety guidance.