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Do you carry something like this in your car, truck or bike?

Or in the case of 1290 owners your minivan or convertible VW bug?

I have the antigravity xp10 in my trunk
people cant believe that it will start a car
I even used it to start my bike once
I have used it many times to jump dead batterys
of stranded people
Plus during a power outage you can keep your cell phone charged !!!!