Battery Replacement Memory Data Backup Save OBD2 with Protection Fuse

• In today's cars, even when the engine is not running, power is supplied from the battery to maintain electrical system memory such as car navigation, audio, power windows, clock, and engine learning values. • Therefore, if you replace the battery without backing up the memory of each function, not only will each setting be reset, but it may also cause warning lights to turn on and affect vehicle operation. • In some cases, it may be necessary to have the dealer reconfigure the settings to recover data that has been reset. • This memory backup tool can avoid such problems when replacing the battery. • After replacing the battery, you no longer have to worry about setting the time, restoring audio settings, unlocking the security lock, resetting error codes, etc., allowing for smooth battery replacement. • Professional tool for car dealerships and repair shops. • [How to use] 1.Connect to "+" and "-" of the working battery.If there is no voltage problem due to the built-in check system, the green lamp will light up.*If you make a connection mistake and clamp the +&- in the opposite direction, the red lamp will light up.*If the voltage is lower than 11.3V, the lamp will turn yellow.| 2.Insert the main unit into OBD2 and if there is no problem, two green lamps will light up.The backup is now complete. • Total cord length: approx. 78cm • For 12V