Jeff Liebermann writes:


I just lost the third wall wart in a month.

Check your AC voltage. It may be on the high side.

In another country, I found an alarm wall-wart, 18V/500 mA or
so. It was a 50 Hz country and the line voltage was 125VAC+.

It had sagged; no longer a rectangle, it had become a parallelgram,
with the wall-edge now ~1" higher than the sagging outer face...


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