New Power Adapter Issue

Okay, this is going to be kind of long, I apologize.
So, I have a Macbook Pro that is a few years old (it's the last model to have the one button). Recently, by original power cord got frayed and stopped functioning, so I got a new one. I got the new L-shaped adapter and I started having issues. If I unplug it and plug it back in a few minutes later, it doesn't recognize that it's plugged in. But, if I shut down the computer and take out the battery and put it back in, it will start working until I unplug it again for an extended period of time. The cord works fine in my sisters computer, it's not a battery issue(got a new one after this problem), I reset the SMC, so the next thing on my list to check is the logic board. But then something occurred to me that I should have thought of earlier. What are the odds that my logic board will fail exactly the same time I bought a new power adapter? I think there is something different about the power adapter that is causing issues the SMC or something. Is this what's going on? Are there other reports of this happening? Is there going to be an SMC update to fix this?

The new adapter with the angled plug doesn't work with older (pre-unibody) MBPs. If I were you, I would return or exchange it for one of the older ones with a straight plug. If you can't exchange it where you bought it, ask for a refund, and buy a new or refurbished adapter from one of these vendors:
http://eshop.macsales.com/item/Apple/A1290AR/
http://macbookadapter.com/85wcompare.html
The first is a highly dependable Mac-centric vendor with whom many regular posters here have dealt often and happily, including myself. The second is a vendor I've never dealt with and can't vouch for. I mention them only because they advertise old-style MagSafe adapters both new and refurbished. Before ordering from either of these or any other vendor, telephone them and confirm that the older style is available and will be supplied to you if you order.
Message was edited by: eww

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