#Macbook pro power cord replacement mac

Even the most basic power supplies have thermal protection, which is present in an Apple adaptor but it is pushed to the limit so that other elements may fail before it is activated.Īpple power adapters and accessories are a case of point in economics, like OEM spare parts on a car. Yes, the cable is designed to melt when short circuited, so is a plain fuse, and more intelligent power supplies have short circuit protection in addition to a fuse as a contingency against a general failure. However, neither the efficiency, neither, the stability, nor the reliability of Apple power supplies is anything to look at with admiration. If one's benchmark is fake Hong Kong, Taiwan or China power supplies (The likes of Bestec, etc), then Apple power devices are much preferred. Having read all the posts and knowing as much as I know about Apple power supply circuits, I would prefer to build my own power supply.Īpple power circuits are at best on the weak end of the spectrum and apart from being super innovative in proprietary protection are fairly basic and low end. I know many that have had good luck with quality third party adapters, but wanted to explain the why some third party adapters are dangerous to use and not even close to equivalent to Apple's product. I've been well served by buying Apple adapters in terms of reliability and safety, despite the higher cost.

The article above explains how the Apple charger is engineered with a processor in the MagSafe connector and a main processor that's equivalent to the original Macintosh - you're getting a computer inside every Apple charger as well as dense and highly safe design shown on the left and a knockoff design on the right. Unless you are using the adapter in an environment where a small fire could reasonably be contained without undue risk to finances or life, you might avoid using a third party adapter if you are not skilled at evaluating electronics for build quality. Also, some have high quality plastics and similar weight so you may have to be very observant to tell a good knockoff from a genuine part. The worst part of counterfeit adapters is that they typically carry the same 'safety' markings as a quality electronics adapter. I have seen far, far more dangerous adapters than safe ones.

I have on rare occasion seen some nice third party adapters that work with MagSafe connections - but none yet on MagSafe 2.

#Macbook pro power cord replacement mac

The MagSafe board on the Mac usually protects your hardware from any sort of short - and it also is replaceable if it's fusing blows. Since the voltage is low on the MagSafe side of the cord, this is more a heat/fire risk than a shock risk. I've seen people decide to use cords when lightly damaged - sealing the cable with electrical tape. The Apple cables appear to be designed to safely melt without starting a fire in cases where the internal insulation breaks down in case of crushing, slicing, piercing (kittens are even worse than cats in this regard) or simply worn out due to repetitive bending in the same spot.