Apple’s plastic MagSafe power adapter is certainly a big improvement on the old bullet-tipped model, but it is still prone to breakage. Exhibit A: My own power-adapter, which frayed internally and eventually stopped passing precious electrons to my MacBook a few weeks back.
Apple has hopefully fixed this with updated MagSafe tips for the 85 Watt adapters which come with the 15 and 17-inch MacBooks, and the 65 Watt versions for the 13-inch MacBook and MacBook Pro. The tip is aluminum and puts the plug in parallel with the cable instead of at right-angles, just like that of the MacBook Air, only with this new design the aluminum extends past the rectangular tip and into a cable-coddling tube. This tube alone should fix a major failing point of the adapters.
It’s just a shame (for me at least) that these didn’t come out a little earlier, so I didn’t have to drop my $80 on yet another piece of plastic junk. Than again, maybe Apple’s adapters just seem to fail more often because the computers themselves last so long?
Apple 85W MagSafe Power Adapter [Apple]
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Source: Gadget Lab