1. Material: The products are made of PVC material. PVC material is characterized by light weight, which makes the products lighter and easier to carry and install. At the same time, PVC material has good durability, which can maintain its physical properties in long-term use and is not easy to be deformed, so as to extend the life of the products. 2.Overload Protection: The memory protector has a built-in 8 Amp fuse for more reliable protection. The product ensures in the event of a short circuit and prevents currents from damaging your equipment. You can connect a starter with a 12V outlet to the OBD II memory protector, which retains vehicle codes and electronic presets. 3.Universal Application: The OBD II cable is thick and comes in 3M/10 feet lengths. The unit is compatible and works easily with 12-volt DC power devices, including jump starters, DC 12V sealed batteries or other automotive DC 12V power outlets, thus making it easy for vehicle owners to perform vehicle diagnostics or data transfers. 4.Convenient to Use: The product is simple and easy to use. First, you need to plug the OBD II plug into the OBD II socket of the car you want to replace the battery. Next, you should connect the other cigarette lighter to the backup battery power or plug it into the cigarette lighter of another normal car. Finally, you need to wait for the indicator light on the cigarette lighter to come on and you can ly replace the battery.