macbook pro magsafe 2 85 watt dc charger amazon

Macbook pro magsafe 2 85 watt dc charger amazon full#
Macbook pro magsafe 2 85 watt dc charger amazon mac#

But Lower wattage adapters don't provide enough power. The conclusion: You can use a compatible higher wattage adapter without issue, but it won't make your computer charge faster or operate differently. The internal convertor have wide input voltage range, I don't know about the range specifically in Mac, but it should from 14.5V to 20V at least depend on Apple’s office answer to this questions.

For example, if your original adapter is MagSafe 45W, that means the maximum voltage power supply is 14.5V, when it enter your Mac, the DC-DC convertors will convert the 14.5V to correct voltage ( for most of laptop it is 5V), in this case if you use MagSafe 85w power adapter alternately, the 85W MagSafe will supply 18.5V power, when it enter you Mac, the DC-DC convertors will convert the 18.5V to same correct voltage also.

Macbook pro magsafe 2 85 watt dc charger amazon mac#

The use of higher voltage MagSafe with Mac requiring lower voltage is okay, because there is a DC-DC convertors (with their own regulation) in your mac inside, this DC-DC convertors will give it the voltages needed for its components from either the adapter or the battery, and to charge the battery. For example, if your original adapter is MagSafe 45W, that means the maximum current your laptop need is 3.05A, in this case if you use MagSafe 85w power adapter, your laptop only pull 3.05A current also, although the 85W Power adapter can supply 4.6A current. How many current will pull through is depend on your laptop need. The use of bigger current adapters with devices requiring smaller current is okay because the current is pulled from adapter by your laptop, not pushed by your adapter.

MagSafe 2 85 W = MagSafe 85 W = 18.5V / MagSafe 2 60W = MagSafe 60W = MagSafe 2 45W = MagSafe 45W know wattage equals voltage times current (Watts = Volts * Amps), so if wattage is higher, that means maybe the voltage is higher, or maybe the current is bigger, or maybe both of them are higher and bigger.

Here is the Magsafe specifications from Apple: We will give the details explanations for why Apple’s answer is correct. The 85 Watt Power Adapter features a magnetic DC connector that ensures your power cable will disconnect if it experiences undue strain and helps prevent fraying or weakening of the cables over time.

We’d like to mention that the only advantage for use a high wattage adapter powering a lower power mac might even run cooler than the smaller wattage adapter. 85W Power Adapter for Apple MagSafe Macbook Use an extra adapter for home or work. Yes, you can If the ports of the adapter fit .įor all this kind of questions, Apple’s office answer is “You can use a compatible higher wattage adapter without issue, but it won't make your computer charge faster or operate differently.” It also powers the system if you choose to operate without a battery.Ĭompatible with 15- or 17-inch MacBook Pro.You may heard of these questions like “Can I use an 85W MagSafe power adapter to safely charge my MacBook Air?”, or “Can I use the high wattage MagSafe to my mac which need the low wattage?“。The answer is following and very clearly. This power adapter recharges the lithium polymer battery while the system is off, on, or in sleep mode. An AC lead is provided with the adapter for maximum lead length, while the AC wall adapter (also provided) gives users an even easier and more compact way to travel.ĭesigned to be the perfect travelling companion, the adapter has a clever design that allows the DC cable to be wound neatly around itself for easy cable storage.

Macbook pro magsafe 2 85 watt dc charger amazon full#

When the connection is secure, an LED located at the head of the DC connector will light up an amber light lets you know that your portable is charging, while a green light tells you that you have a full charge. In addition, the magnetic DC helps guide the plug into the system for a quick and secure connection.

The 85 Watt MagSafe Power Adapter features a magnetic DC connector that ensures your power cable will disconnect if it experiences undue strain and helps prevent fraying or weakening of the cables over time.