Engine will not crank at all...still getting electric power

wow old and still on the road that old, rare here, USA.
the charge lamp means the Aternator is failing
causes are.
1: belt slips to it or belt missing
2: wire to it fell off. or burned, cut etc.
3: fuse huge 50amp blown under hood.
4:the alternator is bad.
5:engine trouble such that RPM is 500 rpm AT IDLE AND THE ALTERNATORS JUST DO NO LIKE THAT.

ALL YOUR STATED EVIDENCE IS 100% NORMAL FOR DEAD ALT.

charge up the battery and drive to a shop and tell them to fix the ALT.
they even test it.

use an ammeter to find it

it's easy, with one tool, near impossible with out, (pull one fuse each night, nah that sux)

http://www.fixkick.com/drain/drain.html

It could be a throttle position sensor is the check is light on? There is also a crank position sensor that has to be re learned sometimes with engine swaps as well

Dirty battery terminal. . Why is this not on the drivers test. Don't just look at thrn. Remove then and clean until all all All surfaces are shiny. You don't really have a problem. Have fun!

Do you know how to do automotive electrical system testing . Voltage drop ,charging system voltage testing etc.... You don't say what year the vehicle is ? Are any light's lit on the instrument cluster , check engine , battery symbol etc.... Your best bet mite be to take your vehicle to a qualified repair shop . Do you know what a wiring diagram is ? how to use one to find testing point's in a electrical circuit ? Do you own a DMM - digital multi-meter ? Free wiring diagram's at http://www.bbbind.com/free_tsb.html Find wiring diagrams for system's - componets your having problems with an test the electrical circuit .
Electric Testing Techniques You Need to Know Learn how the electrical system works .

Even though all your other electrical bits are working it could be that your battery doesn't have enough juice to crank the engine. It doesn't take much power to run the radio, lights, etc, but cranking the engine requires the battery to have a very strong charge. If your battery is more than 5 years old, that's very likely the issue. I'd start there. Also, be sure to check the battery terminals and ground for corrosion and clean if necessary. If replacing the battery doesn't solve the problem it could be the starter solenoid or a loose electrical connection somewhere.

make sure you have fuel preasure, it could be a bad crank sensor or a fuel pump. good luck.

Have you tried turning the engine over with a socket on the crank bolt.

check you fuses and clean your battery terminals, you might have a relay that controls you ignition. or could be your coil pack.

sell your saturn