My 2018 Clarity PHEV has been a pleasure to drive since we bought it in March, 2018. I regularly follow this forum and have learned much about the car. Last week, my wife got a call from a representative Honda who wanted to know if we would allow them to swap out our Clarity’s battery for a brand new one so they can study our old one. Sounded like a good deal to me. We’re scheduled to take the car into our dealer next Tuesday, so they can do the work. It’s likely to take all day and they’re providing a loaner for the day. Got a text yesterday with a link to a work order that read in part: “Customer coming in to assist in research project with American Honda, to have battery removed and install new ima battery, please order a new battery on sb 10-061 as per email attached” I am interested in this forum’s opinion on this. Should I be worried? Up to this point the car has performed flawlessly, although I seldom get the 47 miles on a charge. Maybe it’s the hilly neighborhood I live in. Currently I’m getting 42 miles on a charge, just under 9000 total miles, probably 90% of them are EV miles. But a free new battery??!! Love the car!