1

Score

Avatar
Shawn Tice
16

Asked

What would cause my MacBook to kill AC power adapters?

History

I have a black MacBook Core 2 Duo Penryn, and it seems to be killing AC adapters. The adapter will work fine for awhile, but eventually it'll stop charging the computer. Once this happens, if I plug it into another MacBook, it won't charge that one either. If I leave the adapter unplugged for an hour or so, sometimes it'll start working again. Sometimes I have to wait longer. Eventually, though, the adapter stops working at all.

This same behavior started happening about a year ago, and I took it to an Apple store. They replaced the DC-in board, and that fixed the issue for awhile, but now it appears to be happening again. Any ideas?

We have two MacBooks that we use regularly sharing the same wall receptacles, so it seems unlikely that the receptacles are the issue since the other MacBook hasn't had any issues. We've seen the same AC Adapter death over several adapters, so it also seems unlikely that it's a problem with any given adapter.

Shawn Tice,

Post Answer

1

Score

Avatar
mayer
121.8k

Answered

Permalink • History

My first guess would be a ungrounded wall receptacle or reversed polarity.

What do you think of the battery as a second guess? Ralph +

rj713,

rj - The DC in was replaced and DC only runs one direction. A better bet would be substandard adapters.

mayer,

0

Score

Avatar
zheng
1

Answered

Permalink • History

如果你已经尝试换了一个新的ac电源适配器还是出现你描述的情况那可能主板有问题，你可以尝试换块主板试试！

google translation for that answer: "If you have tried for a new ac power adapter or the situation you describe it appears likely motherboard problem, you can try for block board to try!"

markus weiher,

Add Your Answer