Originally Posted By: Blast

huh? From the FAQ:
Quote:

Q. If my car battery is completely dead, or at a low level, will the PJ work?

A. No. The unit is not designed to replace or jump start a completely dead battery. This unit only carries 30 volts and if your battery is at too low of a point to accept a charge, then the LED light will not turn red.

That's not the only place they mention 30v.