My truck battery runs down while parked in my driveway. I have taken it to the shop and they can't find anything wrong. After the battery is charged it starts good, but after it sits for 2 or 3 days, the battery is down again. I have replaced the battery and the new one is doing the same thing. When I touch the terminal to the battery post I can sometimes hear a little click, like a feed back. Do you have any idea what that is?
Thanks