ok i have a 93 toyota celica 2.2L... for some reason whenever i use the battery without the car running like listening to my radio or accidentally leaving a light on... when i start the car id idles really high at 3000 rpm and doesnt drop at all... if u ever barely touch to gas is shoots up to 5000 if u wait about 15 to 20 minutes it all goes back to normal... i was thinking maybe the car is tryin to hurry up and charge the battery but im clueless please help