Why Do Some Apple MacBook Chargers Turn Yellow? Here’s What We Know

As it turns out, the yellowing of MacBook chargers is far from uncommon. Unfortunately, Apple hasn’t directly explained why this happens so often. Thus, folks online have discussed this phenomenon numerous times, conjuring up a handful of potential factors to blame. First and foremost is the frequently cited theory that this is due to a buildup of heat when charging. As a result of constant exposure to high temperatures, most forms of plastic are susceptible to discoloration over time. MacBook chargers, especially on the ends where the wires plug into the charging block and the MacBook itself, are no exception to this.

Another prevailing idea is that MacBook chargers yellow in specific areas as a result of near-constant contact with human hands. No matter how often you wash your hands, your skin secretes natural oils that can rub off onto whatever you might touch throughout the day. When you grab the end of your charger to plug it into your MacBook, you’re regularly adding oils and other substances that could cause staining and, therefore, discoloration. If you want to try avoiding this, Apple recommends that you clean your charging cable with a damp cloth, wipe it up and down its length, and then dry it off with a clean, dry cloth.

Regardless of the reason behind yellowing in MacBook charging cables, the matter of whether using these cables is safe is worthy of discussion.

Is it safe to use yellowing MacBook cables?  If you’re able to clean yours and reduce or even eliminate the discoloration there’s likely not a risk to keeping your charger around for a while longer. On the other hand, if heat is the issue, as evidenced by additional signs like the charger feeling warm, a burning smell, or even smoke coming from it, then it’s a no-brainer that a new charger is in order — perhaps even one that ideally will last longer and be more resistant to damage.

If you’re in the market for a new charging cable, the Apple USB-C woven charge cable is worth considering. While they can be more expensive than their more traditional rubber-plastic counterparts, and they are prone to getting dirty, braided cables are designed to be more sturdy and prevent breakage, as well as avoid tangling. One’s mileage may vary, but they’re undoubtedly a strong alternative if you’re worried a regular MacBook charging cable will sustain heat damage and turn yellow shortly after you purchase it.

Electronics are great, but unfortunately, they don’t last forever — especially Apple charging cables, which tend to break pretty often. If your MacBook charger doesn’t just need a good clean, odds are it has taken some kind of heat damage. If this is the case, it’s better to be safe than sorry, opting for a replacement instead of pushing the aging cable beyond its limits.