I wanted to see if there was any conclusion to this old thread, as I am now having this problem (happened twice in the last two months--most recently 2 days ago)... old thread link. I have a 1991 CRX.

https://honda-tech.com/forums/honda-accord-1990-2002-2/battery-light-comes-intermittent-2150687/

 

charging light normally means the brush set in the alternator needs to be replaced

numerous how-to's on youtube for how to swap them out, not too hard at all