 to deal with that get some kind of peace of mind there but uh at least if you're buying something mechanical like a car uh that you're used to a conventional vehicle you have some sense of what could go wrong and what and how much that will cost but with a battery electric as you say the battery is is so much the the cost of the car such a high percentage of the value of the car and you can't look into a battery and see whether it's working or not so talk to us a little bit about that