I hope you guys can help me out. I have a 2000 Honda civic. Yesterday I left the headlights on for about 15 when I parked up in a parking lot. When I came back, my car wouldnt start, and all I heard were the click-click-click noises. (In that past, I had problems with the battery dying, but ever since I put in an Optima yellow top, I havent had that problem.)

After getting a jump start, I was on my way for a 50 mile drive on the highway, I figured my battery would re-charge. Once I turned the engine off, SAME thing! Click click click....

I used my meter, and my batter read, 12+ Volts... I jump started it again and with the engine on, it read 14.4 or so...

I did notice that when I jump started the car.. it was a very WEAK start, not the usual starting sound I got prior to leaving my lights on.

Another weird thing is I noticed that when I turned my headlights on (while driving on the highway) my radio would cut out for a second, in addition to the guage cluster turning off for a split second.

What do you guys think is the problem? Weak battery? Alternator? Starter? I cant figure it out... please help.