Buy Used Macbook Charger
The MagSafe Charger maintains compatibility with Qi charging, so it can be used to wirelessly charge your iPhone 8 or later, as well as AirPods models with a wireless charging case, as you would with any Qi-certified charger.
buy used macbook charger
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\n The MagSafe Charger maintains compatibility with Qi charging, so it can be used to wirelessly charge your iPhone 8 or later, as well as AirPods models with a wireless charging case, as you would with any Qi-certified charger.\n
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thank you! i think i will try ebay ? my mom bought one a long time ago that ended up sparking when she used it... that is why i am hesitant. i am sure they are better regulated now ? thanks again
These fall mainly into four main types: MagSafe, MagSafe 2, MagSafe 3, and those that charge only with a USB-C connection on the Mac side. MageSafe 2 cables are split between MagSafe L and MagSafe T type connectors. MagSafe L is the longer, straighter connector that attached alongside the MacBook, while the T is the blocky square that was used on most MagSafe connectors.
The second thing that the MacBook Pro charger name tells you is its type. As of 2021, there have been only three versions released: MagSafe, MagSafe 2, and USB-C. The latter is used for the newest MacBook models.
For a long time, MacBooks used to be the only laptops Apple would make, and the last ones of this original type were made in mid 2010. But in 2015, Apple resurrected the name with an ultra-light, ultra-portable MacBook model that lasted a few more years until being just recently discontinued.
Once you know which Mac charger you need, you might be wondering where to buy one. The most no-brainer option is, of course, visiting your local Apple store or ordering from apple.com. But if you want to save a few dollars or get a special deal, you can also check some other places in the process.
How do you know when to buy a new charger? Obviously you need one when the old charger fails. But sometimes your adapter might simply start working slower than usual, which is quite difficult to pin down, unless you use robust monitoring software.
There are plenty of affordable third-party options if you need to replace your MacBook's MagSafe or USB-C charger. But is it safe to use a non-Apple charger for your MacBook? They may be cheaper, but are they still a good idea?
Ken Shirriff did a fascinating teardown of Apple's MagSafe 85W charger for his blog and made some surprising discoveries. First of all, Apple puts a lot more components into its chargers than you might expect. The MagSafe charger even includes a 16-bit microprocessor.
This microprocessor monitors the voltage and current running through the charger and shuts it down in case anything goes wrong. It's a handy safety feature that prevents dangerous overheating or power surges, protecting you and your MacBook from harm.
Similarly, a chip in the MagSafe connector communicates the charger's serial number, type, and power to the MacBook. This chip tells your computer if it's plugged in to the right type of adapter or not. It also tells the charger to start supplying more power when it's plugged in.
So what about cheaper MacBook chargers? Shirriff has also taken plenty of those apart and his findings show there aren't nearly as many safety features or components in them. What's more, the general construction quality is usually much lower, increasing the risk of electric shock or overheating.
Safety regulations for companies in other parts of the world---especially the US and the UK---are likely to be higher. So you're better off browsing Amazon for third-party chargers rather than shopping on AliExpress.
Unlike MagSafe, Apple doesn't own the USB-C design. This means third parties can legally produce their own USB-C chargers to use with your MacBook. As a result, it's possible to find USB-C chargers from reputable brands, like Anker, which are likely to offer similar safety features to Apple.
Just like third-party MagSafe chargers, these cheap adapters don't hold the same number of components and could cause damage to your MacBook, start a fire in your house, or even give you an electric shock.
Even Apple's adapters melt or flare up on occasion. So no MacBook charger is immune to failure, including official Apple ones. But if a 16-bit microcontroller monitoring the charger isn't foolproof, a third-party MacBook charger without a microcontroller must be even riskier.
There are plenty of reports of third-party chargers experiencing serious failures. Sometimes they spark fires. Other times they short out and deliver serious shocks. And they might even explode, causing serious injury.
It's very difficult to say for sure if a third-party MacBook charger is safe or not. It's always safest to buy an official charger directly from Apple, especially for MagSafe adapters. But if an official Apple charger isn't in your budget, here are some good practices to follow when looking for an alternative:
Even if you try to buy an official Apple MacBook charger, you might end up with a fake one instead. Counterfeit chargers are easy to come across online, often selling on Amazon or eBay for less than the official chargers.
As with anything else, whether or not it's a good idea to buy a cheap MacBook charger comes down to your personal priorities. Are you willing to increase the risk of fire and electric shock to save $60 on a cheaper charger?
It's also worth pointing out that using a third-party charger could void your MacBook warranty. Your original charger is covered under your warranty, so if something goes wrong with it, speak to Apple first to see if you can get a free replacement instead.
After confirming that the charger is your issue, check for dirt in all ports and connectors. A layer of dust or grime may be present, preventing the charger from making a proper electrical connection. Also, beware of invisible, sticky layers that may be the real problem.
To clean, get a cloth or cotton swab and remove any dirt you see. You can also use a quick spritz of isopropyl alcohol on the connector, but make sure to dry the charger thoroughly before using it again.
Strain relief: Strain relief refers to the head of the charger, which plugs into the MacBook, slowly disconnecting from the main cable. Caused by wear and tear, this issue appears more often on older connectors than power adapters with L-style or other MagSafe connectors.
If the large, boxy part of your charger remains hidden under blankets, sits in the hot sun, or otherwise resides in a heated area, it may overheat. Adapters are very sensitive to heat, which is why Apple installs automatic shut-off functions for when they get too hot. That means your MacBook will never charge if you keep charging it in a hot environment. Make sure your adapter is always in the shade and well-ventilated.
Use this support page to determine which charger is right for your Apple product. High wattage chargers may safely be used on lower wattage-rated Macs (e.g., an 85w charger can be used on a 45w-rated Macbook Air).
Make sure the proper wattage adapter for your portable computer is used. Select the appropriate power adapter for your Apple portable computer. You can use a higher wattage power adapter, but you cannot use one with less wattage without potential operating issues. (here + discussion here).
The power management must maintain the following inequality balanced, in terms of power: (power adapter + battery as a power source) >= (battery charger + the machine). The loads are prioritized: the machine has priority over the battery charger. The power management system also knows the electronic nameplate of the power supply and thus its rated power.
Thus, given an available input power, the machine load is satisfied first, and any leftover power is provided to the battery charger. If there isn't enough power left for the charger, the battery is by definition discharging unless it has no charge left. This is important. Conversely, a fully charged battery will demand a zero charger load, and that's fine.
Since the machine load takes priority and doesn't shed until there's insufficient power available, the battery will be always discharging whenever the supply can't provide sufficient power to cover the machine's needs. This means that with a 60W charger, the battery will charge only during light CPU load. If you have both cores going full-throttle, the battery will be always discharging until it reaches a zero charge state.
The rate at which the battery charges will also depend on the machine load. The battery charger can consume up to 30W or so. With an 85W adapter, that leaves about 55W for the machine, and it's insufficient to power a full machine load. Since the machine load takes precedence, the power available to the charger will vary depending on the entirety of the machine load: CPU/GPU, drives, USB/FireWire, screen, etc. With a very high machine load, the charger is left with very little power to use, even with an 85W supply, and will take very long to charge the battery. The longest I've seen was 20+ hours with everything going full blast (full CPU+GPU load, all USB and FireWire ports delivering full rated power, all drives spinning, screen at full brightness, speakers blaring).
I took a close look at my '65W' adapter. Apparently, it's not a 65W adapter after all, but an 85W with the older connector (the fat head connector). I always assumed it was 65W because of the age of our 2006 MBP... I guess the guy we bought it from used had replaced the adapter. You may want to check yours closely since they can get mixed up.
I have been using the 60w adapter from my old 13"macbook pro(which was stolen a while ago) for my new 15" macbook pro for about a month because I assumed that all the cables or adapters are the same from Apple(since it is the case for the usb cable) and I did not realize until one day it turned off itself. Most of the time, my macbook pro was connected to the power. Now I have switched to the 85w adapter and everything works fine, thank god. my question is: will this cause any issue or damage to my battery or hard drive or other parts of my macbook pro? 041b061a72