AUTOMOTIVE COMPUTER MEMORY SAVER 10 FOOT. 2.5MM TO LIGHTER PLUG 

l Prevents electronic memory loss when replacing battery.

l Maintains electronic, memory on digital radios, clocks, door locks, etc. when replacing car battery.

l Internal fuse helps to prevent shorts.

l Simply plug into cigarette lighter...and use with a 9-volt battery(not included) or attach clamps to a spare 12-volt car battery!

1. Use to provide power to prevent the disappearance of car data when replace a car battery

2. Powered from both 12V battery and 9V battery

3. With Alligator clip cable connect 12V battery

4. With a battery box to contain 9V battery