That's me, now on 191,000 with no issues, still charges and holds charge as well as ever, interestingly (well to me anyway,yes I know I am a saddo!) Lexus M.Keynes are offering a free 12 month traction battery warranty if your car passes the hybrid health check, normally £59 but free with a service at the moment, thats a really cute deal and probably will cost them nothing. Got mine booked in but then they have serviced mine 20 times.
I see one 450h on Autotrader states it had new hybrid batteries, not sure.