A few months after purchasing my 2AA LED Maglite the on-off switch functionality became unreliable – it didn’t cleanly switch on/off when rotating the head. Sometimes it required a slight tap. I took it back to the Wilderness Shop for warranty repair. A few weeks later it came back with a diagnosis "it was just the batteries" (!!). However, it did seem then to be OK.
Now it’s dodgy again. It seems that Maglite’s high standards have slipped – or maybe you’re not supposed to drop them down pitches? Rather disappointing overall, anyway.
I still use it – attached to my helmet with shock cord. It’s especially good for lighting up Suunto windows when surveying. I’m tolerating, and working around, the chronic switching problem.