text:  Most of the shops, when they recognize a problem, they replace it with Interstate. They don't have to call Interstate. They don't have to do anything. If it's under complete warranty, you get a battery replaced free. If it's under a warranty where you have a certain amount of value left, they count that value towards the purchase of the next one. No questions asked. Nobody has to call Interstate and get approval. So that's why I recommend Interstate because they have the best warranty.