Q: voltage

Hello,

I have a MacBook Pro from 2007. Today it powered off and would not power on after operating for about 25 minutes.

There was no amber or green light on the power cable connector.

I tried another recepticle but had nothing. Removed the battery performed a reset then took it to an Apple Store.

It powered on with their adapter and mine. Wiggled the cable around but it was fine.

The building I was working in was built in 1807. However I am not sure when the wiring is from.

I was thinking the Power Adapter might not work if there was too low voltage but the adapter is rated for 100-240 volts.

I went back to the building and had an intermittent green light from a few circuits so I did not power it on.

They had renovations performed in .1999, have a 100 amp service but I do not know about the wiring.

I came home and it's been working fine for about 90 minutes

Do these power adapter become flakey after a while?

It is a:

85W MagSafe Power Adapter

Model Number 1222 (the invoice lists it as part # MA598Z/A

100-240V-1.5A 50-60Hz

Note: This has the issue with the wire shielding sliding away from the adapter (if that makes any sense).

That occurred around 2009.

I am not sure if these are relevant but I will post them.

In November 2009 the LCD did not work and Apple replaced a board with a PCBA MLB 2.2 GHz Rev2 (under the protection plan).

Unfortunately, I did not notice the speed. I had a 2.6 GHz but that is beyond the scope of this posting.

The past 12-16 the LCD brightness flickers, dims, brightens, etc.