I have a 1994 Lexus ES300. It has around 200k miles. Everything ran good until a few months ago where the battery started to drain out when I don't use my car for 2 days, sometimes the drain happened overnight. When I have to go to school in the morning, I alwyas have to use those jumpstarter to start up the car. It has been such a nuisance. More than once, I bought the car to a local car shop and have them do several maintanance check. We replaced the battery several times, replaced the alternator. The starter has no problems. I don't know what could this be.
I bought my car to Goodyear for another checkup, they say that they could not find a source that is draining the battery. I know for certain that it was not a light that was left on overnight because I opened the Relay & Fuse box to remove the yellow tablet for lights and left the car overnight, however, the drain still occurred.
I have almost tried everything and I'm in a state of desperation. Could anyone offer suggestions besides buyin a new car? (I can't afford a new car because of high-insane insurance). PLEASE HELP!!