Prophylactic battery replacement

[KGMtech]

I do. Shop at leisure for replacement when original is 4 or 5 years old. Part of my OCD I guess?

 

[Nick1994]

Usually ahead of time, or when they show some sign of failure. I can't remember many batteries just flat out being completely dead. I can usually hear a sign of weakness of slower starting ahead of time.

I replaced a leaking battery on my Jeep 2 years ago, still started it just fine. But I take it out to the middle of the desert off-roading and don't want a failure. A few months ago the Genesis still started but sometimes had a little hesitation to start, had it tested and it was at like 1/2 the CCA. That one is an ouch, $250 battery.

Bizarre timing of this thread and my comment.

My little sister who drives my 2007 Sonata called me this afternoon, it wouldn't start. I knew right away, it must be the 4 year old battery. When I posted this morning in this thread I had looked up who has the best deals for batteries for it too, so I knew to just head to Costco.

Edit: She left the dome light on...