That obviously means I want to use it as a primary screen. Now a user normally expects the laptop to be intelligent enough to know that an external display is connected to it. That means it stops giving power to external displays, drives, even the ethernet port (if it has one).

I’ll give you the long and the short of it.īasically, when you close the lid of your MacBook, it sleeps. You know, unless you do what I did and lose yourself in forum discussions talking about the ‘hibernatemode’ command and the various power states of a MacBook. MacBooks handle power in ways that are not very obvious. Now I’m stuck using my laptop as a glorified desktop, and with an impossibly throttled CPU to boot.įortunately for you, this made me look for ways to use a MacBook in clamshell mode without keeping the charger always connected to it, and I found the solution. It did just that, and my battery doesn’t charge anymore. Now when I was getting started with this whole set up, I took Apple’s word for it and kept using my MacBook with the charger connected to it at all times, knowing full well that it will destroy my battery’s health. Take a look at the company’s official help document about this. You should too.Why do we need an entire article on how to do this? Well, turns out, Apple will not let you do that unless you have a power adapter connected to your MacBook. Will definitely use for all my Mac needs. So far I' ve had this new charger a week and it has been working perfectly. For some reason my current charger would only charge if the charger was positioned a certain way into the power outlet. It came quickly and works like my old on. My old adapter died and I decided to by from. :-) Just what we neededĪdapters are exactly as described for a lower cost than buying from Apple. worked perfectly!Īs soon as I plugged it into my laptop, it worked perfectly! I am a happy camper.

The ordering process was easy and it arrived on schedule. The adapter is just like the one I left behind and works perfectly on my 2009 MacBookPro. I can' t speak about the build quality of the internal workings as I haven' t seen them but it works great. I found this charger to be equally in quality and performance as chargers that came with my MacBook. I received my adapter in 2 days with expedited delivery which was appreciated. I am very happy with my Apple MacBook power adapter,the price is a bargain compared to what a replacement would cost from an Apple Store when it used to be in stock there. MacBook Adapter had large, clear illustrations of the product so I got the right one at half the Apple price. Until I started looking, I didn' t even know there were two types of Magsafe adapters. When the charger for my older MacBook failed, I was afraid I might have to get a new laptop or spend a lot for a replacement.

Power supply for mac book