On my FJ62 I was having charging issues, and I think that is one reason the guy sold it. He thought the radio was draining the battery. I tried two aftermarket alternators and both were acting weird. I splurged and bought a factory reconditioned unit and lights went off, and electrical system...
I have a battery in one of my cars that is also 10 years old. Nothing fancy, just a big box store battery. It stays on a tender, and the car has almost zero draw while sitting. Sometimes you get lucky. Running your old battery down, may have put too much stress on it, so I would plan for its...