1999Eldorado wont start after sitting. Battery is charged and alternator is charging. Just clicks when keys turned bat starts when jumpered

just sitting overnight. everything else seems to work but just clicks when key is turned. I checked battery terminals and both ground connections from battery. maybe a different ground giving me the problem? I'll try checking amps tomorrow. Thanks guys

o k thanks again As far as checking the diodes I can tell you that the battery is not going dead it checks out at 11.5 volts and when stared alternator charges it to 14,2 initially. after I jump start it I can turn it on and off all day when I take the car out. it just seems that when it sits the starter just clicks but again the battery shows 11volts at least. I know there are quite a few grounds on this car so is it possible to check them all to see if its one of them?

thanks. will be checking it later today. you both have been helpful

Thanks tennishoes. when I got someone to assist and crank it over the battery dropped below 5. Guess its time for a new one. after just acquiring the car no label on the battery to tell me how old it was.

hi guys and thanks again. It was the battery as you has stated. replaced it on saturdy and all problems are gone. Thanks again, Rick

a quick question if I may. Has it been done to change the fog light bulbs with hi-beam bulbs instead of the low-fog beam ones?