Sounds an awful lot like an incorrectly wired capacitor, fueling absolutely nothing.
Running:
30 neon/ccfl/led lights
2000W peak stereo
Playstation 2
Laptop computer
Aftermarket tacho
Dvd Remote control extender kit at 9V
high beams
a/c on full blast
and 4 lit up gauges.
My car happily sits at 13V when running and thats on a k-mart exide battery, what can some shitty capacitor do to make my car gain that 1.4 volts to make it a "perfect" voltage. Im almost tempted to buy one to see what it actually is.