I had the One X, used it for 3000hrs over about 6 years. Sent it in twice, and even out of warranty. Never charged and working great when retuned. Bought the ProX2 last year. Holding up well…. But, if it only last 6 years….not gonna let it get me down. Just a tool of the trade. Mechanics wear out wrenches, meters, air guns. A plumber’s gotta buy a new pipe cutter here and there too.