This also applies to the 60W and 85W Macbook chargers. In this manner, you do not force the power supply to operate beyond its limits.
The general rule with power supplies is to always have more power than what you really need.
The Macbook does have safety precautions to prevent damaging the battery, so the effects are often negligible. Using the 85W charger may hasten the degradation of the Macbook’s battery. Heat is the number one killer of laptop batteries, including the Macbook. The faster you charge a battery, the more heat it generates. It lets you stay on the outlet for a short a time as possible and get back on the move as quickly as you can.īut there is also a downside to having a fast charger. Of course, charging faster is a good thing, especially when you are always on the run. Even if you are using the Macbook while charging or even if you are charging another device via its USB port. It delivers 25W more power or 40% more than the 60W charger.Īn increased amount of power delivered to the Macbook lets you charge at a faster rate. It is the amount of power they can deliver to the laptop. Despite that, there is still a major difference between the 60W and 85W Macbook charger. The two chargers will both be able to charge your Macbook so you should not worry about choosing the wrong one. If you are looking for a replacement Macbook charger, you may be facing the dilemma of choosing between the 60W Macbook charger and the 85W Macbook charger.
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