Charging system issues..'05 Mazda 3 2.3L

[Chaps]

Battery light came on the other day so I took it into dealer and it was diagnosed that the alternator was on the way out. They recommended I get it fixed elsewhere to save on costs. Had it replaced, battery light came on a week later. Took it back in cuz I was advised it may be a faulty alternator that was installed. Had it replaced again and had the same battery light issues. Replaced the battery and light is on still.

Not sure what the cause could be!!!!

[igzy]

Check the grounds, i.e. look at the bolts and perhaps remove, clean the threads or lube them and retighten. Check the relays in the junction block in the engine compartment for the alternator/battery and all the fuses....