Answer (1 of 11): Usually that it’s charging. Apple 45W MagSafe Power Adapter for MacBook Air. Using MacBook Air charger for MacBook ProUSB C Fast Charger for New MacBook Air 13 inch 2020/2019 2018, 45W USB C Power Adapter for iPad Pro 12.9 Gen 4/3,Galaxy S20 Ultra / S20+, PPS Supported Samsung Fast Charger with 6.6ft USB C to C Cable.
Which Charger For My 2012/13 Serial Number OfUsing a MacBook Pro charger for MacBook Air Thats because inside that little silver housing of the connector there is actually a computer chip with the identity and serial number of the pow. Usually when the magnetic latching momentarily loses contact.![]() They also differ by wattage.For instance, the MagSafe 2 power adapter comes with 45W, 60W, and 85W variations. Are all MacBook chargers the same?As you can see from the table below, there are four different types of MacBook chargers: USB-C, MagSafe 2, L-shaped MagSafe, T-shaped MagSafe. Under Overview tab locate the information about the MacBook type, size, and year.For instance, in the screenshot above, I have MacBook Pro (Retina, 13-inch, early 2015).Now I can locate my laptop in the MacBook Pro 13-inch model table and see that I need 60W MagSafe 2 power adapter.The table also has an Amazon link which I can use to order the charger I need.But before you proceed with the purchase, let me answer some commonly asked questions about MacBook chargers.Click here to scroll down to tables. In the dropdown menu click on the first item “About This Mac” Click on Apple logo in the top left corner of the screen How to identify an original MacBook charger?Before purchasing any parts, you need to know the specifications of your computer.To identify MacBook year and model follow these steps: Using a MacBook Pro charger for MacBook AirIt is perfectly safe to use a MacBook Pro power adapter on lower-wattage models, such as MacBook Air as long as the charging ports are compatible. So yes, you can use a lower wattage charger with your MacBook. The difference is that the 45W power adapter has less power, and it may not charge fast enough while MacBook Pro is under heavy load.I have both 45W and 60W chargers at home and found that 60W charger indeed works faster than the less powerful one.At the same time, I was able to charge with a 45W adapter while watching YouTube videos. When using a charger from MacBook Air with a more powerful MacBook Pro expect a longer charging time.For example, a MacBook Pro 13-inch 2012-2015 requires 60W MagSafe 2 charger.However, it is possible to use a 45W MagSafe 2 charger (the one that comes with MacBook Air) without any issues. Are MagSafe L and T interchangeable?Yes, MagSafe 1 power adapters that come in L and T shapes are interchangeable. The only difference is MagSafe 2 is longer and thinner while MagSafe 1 (the older one) is slightly shorter and thicker.MagSafe and MagSafe 2 are not interchangeable due to size differences. What is the difference between MagSafe and MagSafe 2?Both MagSafe and MagSafe 2 T-style power adapters, look almost the same. And I didn’t notice any abnormal battery degradation personally. Eventually, the extra heat may degrade the MacBook Air battery faster.I have both MacBook Air 13-inch 2014 and MacBook Pro 13-inch 2015 models.I use their chargers interchangeably, and I never had any issues in 4 years with either one. But it is ok to use a 60W charger of a MacBook Pro with it.A power adapter with more watts will charge MacBook Air faster.On the other hand, the faster the battery is charging, the more heat it generates. In the System Information app, click on the Power section under Hardware. Start Spotlight Search and type in System Information. Plugin the power adapter to the AC and plug it into the MacBook. The only way to tell the difference is by connecting the charger and then checking the System Report.Steps to identify the original MacBook charger: How to identify an original MacBook charger?It is tough to tell the difference between fake and original MacBook charger.Counterfeit chargers lately have the same external attributes: look, labels, and even serial numbers. Excel for mac ascii code 160Especially, if it can fry my expensive laptop.Replacement chargers have a comparable number of components inside. Replacement MacBook chargersYou can buy so-called replacement chargers on Amazon, and they usually cost 3-4 times less than original ones.Out of curiosity, I tore down both original and replacement chargers, and here’s what I found: Replacement charger is not UL-certified and does not have serial numberReplacement chargers do not have the Apple logo on the side, and also they are not certified by UL.I don’t know about you, but I would never buy anything that was not properly certified. If the serial number is not all zeroes, then the charger is genuine.Original MacBook Charger has serial numberHere’s how the fake charger looks in System Information: Fake MacBook charger does not have serial number Are fake MacBook chargers safe?According to Underwriters Laboratories (UL) study “consumers face potentially fatal risks after 99% of fake Apple chargers failed a basic safety test.”While the research was done on 400 various iPhone chargers, it is reasonable to assume that more expensive MacBook charges carry similar safety risks. The original charger has a unique serial number. More isolation in original charger (on the right) MacBook Air ChargersHere’s the table of MacBook Air chargers.I also included links to Apple and Amazon websites, so you can make a purchase if needed.
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