Has anybody heard of this? It plugs into a cigarette lighter adapter, and will monitor your battery for you, then alert you when it gets down to a level you indicate, to let you know you should start the truck.
If you have used it, does it truly work?
If nobody has used it, does the principle behind it sound legit?
And lastly, it allows you to set the level of volts, for where it will alert you. What would be the best place to set that? Somewhere a little higher like 13? Please let me know on that one.
Thanks everyone.