Put in new battery and still has no power to any thing in the car?

Battery Disconnect or Replacement Problems

alternator (generator) problem. Could easily be the drive belt tension or a faulty alternator.
Having said that, the first thing to check would be the battery itself.
It can cause exactly this problem. Change in outdoor temp, moisture etc can just flatten a battery. Charge up the old one and see if it holds a charge. If it looks like it's leaking or corroded, put a new one in. If the same thing happens, check generator.
Batteries are strange things. work for years and years then one day...nothing. Can happen with new ones too, rare now, but still happens. Extreme changes in weather, low fluids (although most batteries are sealed now).
So......battery first (check fuses too) then if persists...generator.
Hope this helps.....good luck..

How do you know it's only putting out about 1/2 ? an 1/2 what ? Amps or volts ? Did you hook up a volt meter to the battery posts ? red to red an black lead to negative post of the battery ? Does it show 13.1 to 14. 1 volts with the engine running , if so it's charging . The only thing that would cause the alternator not to put out full charge amps would be a bad diode inside the alternator or a power or ground issue. You need to check power an grounds doing a voltage drop test . Voltage Drop Testing the Charging System

The fuse that powers the coil also powers the pcm. Is power getting to the fuse? You may have a wiring issue. Trace back to where the power stops...

Replace the battery cables. They can corrode under the insulation and you cannot see it. Make sure the terminals are clean.

change fuel filter

ON THE POSITIVE CABLE IT WILL HAVE A SMALL WIRE HOOK W/POSITIVE CABLE THAT RUNS TO TERMINAL ON ALTERNATOR,THIS IS MAIN HOT WIRE . LOOK ON THIS WIRE AT BATTERY IF HAS A ROUND BLACK RUBBER THING ON WIRE THIS BAD.

you have something staying on in the car, things to check lights ie glove box trunk , can put a test light between postive battery term and positive battery post the test light will light and will go out or greatly deacrease light when u pull the fuse of the circuit you load is on

Check Power At The Starter.

I would check the ignition switch