Has anyone tried using this Noco Battery Settings Keeper while changing out the battery on their cars? It is supposed to preserve radio station presets, seat settings and other information that would be lost after the battery is disconnected. Has anyone had any success with using this device? I figure that if it works, it is a necessity with cars as sophisticated as ours.

 

i have seen this in my mechanics toolbox... but i never asked him whether or not it really works...