Alternator issue?

[firecatf7333]

98 civic 170 k

So I started my car and drove 1 mile down road to the store. Shut off car and then it wouldn't start. I had it jumped and it went about 5 minutes and then shut off again. Battery reads 12.48 when off and then it's losing volts when running until it will shut off.

Also the belt was smoking a little be a use the car will sit for a week at times. It's smoked/ squels a little before and then it runs down the road and stops.

Could the belt be bad and not allowing alternator to Charge? How do I check this.
Or is it just the alternator?

 

[XpL0d3r]

Check fuse 15 under the dash and see if it's blown.

CEL on at all?

 

[firecatf7333]

#15 fuse is good

 

[XpL0d3r]

The smoking indicates either the belt is slipping, something else in the bay is rubbing against it, or the alternator pulley is partially seized.

 

[firecatf7333]

Its more a squeaky burning smell but only does it after sitting for a few weeks. If car is drove daily it doesn't do it