I just retrieved the copy of the patent for the charger device described above. This thing delivers about 13 volts at 1 amp maximum. Considering losses it draws about 15 watts of power form the AC powerline. So 10 cents a day for electricity is way over the actual cost, unless you have really really high electric rates.

__________________
I got too many cars!! Insurance eats me alive. Dave

78 Corvette Stingray - 3k
82 242 Turbo Volvo - Manual - 270k
86 300e 5 speed manual - 210k
87 420sel - 240k
89 560sl - 78k
91 420sel - 205k
91 560sel - 85k
94 GMC Suburban - 90k
97 Harley Davidson Heritage Softail - 25k
00 GMC Silverado 1 ton 30k