Schumacher ElectricOBD II Memory Saver Cable – Preserves Vehicle Settings During Maintenance – Compatible with Most Vehicles

Do you use the car cig lighter to obd ports or do you have to use an external 12v source for the cig lighter? What external source do you use if need?

Will this plug into any vehicle?

Is pin #16 the pin that provides power in the OBD2 port

The dc voltage of the cig lighter plug on my lithium battery jumpter is over 16 volts. will i damage my car if i use the memory saver at this voltage