Last night driving with the ac on and cruise set and windshield wipers on so then I decide to turn on my headlights and for a split second rpms,speedo, and lights dim for sec not effecting engine. Then I'm in town cruise off but ac and wipers and headlights still on put turning signal on and does it again. So I'm wondering if anyone else had this prob or if someone new if it sound like the battery or alternator.

 

If you're loosing power while the engine is running, it would be the alternator. If they're just dimming for a second, and engine isn't effected, it could just be normal. Depends on the severity; the Honda alternators aren't that high capacity.

 

I agree with AutoXer, but if you want a second opinion, you can take the car to Autozone and they'll test it.