ok here is what is goin on with my 1990 civic 1.5 ... when i start up the car after jumping it the car will idle fine and go thru the rpm range fine.. after about 20 minutes of idling the car will start to bounce around in the rpm range going up and down as if the car wanted to die but wont... after that i will go and check the dash for any check engine lights which it does NOT have. the dash lights are dim, the door open light is dim. but after hitting the gas i can see that the lights get brighter.. now my problem is that.. the battery was just recharged today trickle charged all night.. also the battery will not get any keep any kind of charge.. i dont knwo what is wrong.. i change out a ton of things all my grounds are good.. i just dont know what is wrong.. the car will run fine after the battery is charged up to start the car. afterwards it wont start up after the battery is zapped of its juice.. dont know what to think... would my alternator be bad? would the battery just be the problem.. this is my 4th battery in 2 months.. PLEase HELP me.. this is my daily driver for school and work.and the winter beater.. help!!!!! please