We're about 10k past that mileage where we're supposed to be having battery issues, maybe need a replacement, with our Prius and they aren't happening. I've been wondering if it was just a scare from the salesman to push me to an ICE. We've kept on top of the maintenance and it's been the most reliable car I've ever driven. Might just be a Toyota thing tho. I set aside the money for the repair and I'm waiting, but I'd really rather spend it on hookers and blow.