Ever since I was able to start my car, the battery has never kept a charge. I have to constantly be charging it, luckily its a drag only car. But I am only able to get a few cranks out of it before its unable to work anymore. The alternator has been checked out and is ok, somehow it doesn't charge it. I do have underdrive pullies, but I am not sure that is completely the problem. My battery is in the trunk.