I purchased a new AC200Max new in 2022 with a 4 year warranty. Now it is 2026 and I am on my 3rd unit which just failed. I am sure they will want to replace it with another on that will fail and then I will have no warranty and be stuck with 3 bricks as I also purchased 2 B300 batteries. I am hoping they will read this post and come up with a better solution as I am not happy with getting another Max. E Simpson