Hi Bought this 2008 rx400h last year. Don't drive it alot and battery goes dead after 4-5 days. Had battery and charging system checked, are good. Terminals clean and tight. Has lexus battery in it. Lexus report showed battery replaced multiple times in the past, thought because not driven much, now see this is a hybrid problem. Currently disconnect battery when not going to go anywhere. Thinking of getting quick disconnect, used one before, worked good. Anyone ever find an easier fix for this? Thanks