Battery light

Do as the following.
Start the vehicle and wait for the engine warm up a little bit, then remove the possitive terminal. If the engine stops instantly, you will know for sure that the altenator you have been replaced is still bad. The other way you can check while the engine is running is if the altenator voltage is reading at 14v-14.5v with the battery terminal on the battery. If the charger voltage is dropped down below 14v, you know for sure that the charger is bad.
The problem you have seem to be a bad charger problem.
Good luck,
Tran

I was driving in a parking lot last night going about 10 mph, when all of a sudden my car just shut off totally. Lights and radio stayed on, but the engine just turned off. On the dash I had an orange check engine light and a red battery light on. I put it in park and it started up strong as usual. But then the rpms began to flutter in the low range ( below 2000 rPm) the lights flickered also, not off, but like they werent getting as much power as usual. When I keep the rPms above 2000, the the truck runs like normal, it is just when I dont that it will shut itself down.

Any ideas? Thank you

I replaced battery and belt and alternater [2] and checked wire from alt. And all fuses light stays on. Alt. Is putting out 14.5 volts. How do I get light out?