That said, information is key before making the choice. Battery replacement cost depends on the brand. Mine would be $10K to $12K (without the warranty). But mine's neither a Too Expensive Still Liberals Adore. Nor is it a Government Motors. Nor is it a pickup-truck wannabe. LOL
I would think even $10K to $12K for a replacement battery - sans warranty - is too much to put into a used vehicle that is otherwise also well-worn.