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Mag. Safe - Wikipedia. Windows Live Sign In Assistant Remove. Mag. Safe is a series of proprietarymagnetically attached power connectors, originally introduced by Apple Inc.

The connector is held in place magnetically so that if it is tugged — for example, by someone tripping over the cord — it will pull out of the socket without damaging the connector or the computer power socket, and without pulling the computer off the surface on which it is located. Mag. Safe (. LEDs on both the top and bottom of the connector show green if the computer battery is fully charged and amber or red if the battery is charging. Mag. Safe can be found on the Mac. Book, Mac. Book Pro and Mac. Book Air notebook computers, as well as the Apple LED Cinema Display. The Mac. Book Air has a lower- powered 4.

W version of the Mag. Safe adapter. The power brick is smaller, but the Mag. Safe connector is the same as on the 6. W and 8. 5 W chargers. According to Apple, an adapter with the same or higher wattage than originally provided may be used without problems.

It had a DC input (instead of AC like the original Mag. Safe chargers) and would power the computer, but would not charge the battery.

It is incompatible with the older Mag. Safe connectors without an adapter, and returns to the T- shaped design that points straight out, rather than the L- shape that runs along the side of the machine. The connector was made smaller to fit the thinner laptops. The first and second pins on each side of the tiny central pin have continuity with their mirror pins. The inner large pins are V+ (1.

V DC). Measuring with no load will give 6. V DC for Mag. Safe and about 3 V DC for Mag. Safe 2; the full voltage is provided after a ~4. Ohm load is applied for one second.

The computer uses this pin to change the LED’s color and retrieve the serial number and wattage of the power supply. There is no data communication via the adapter sense pin with the charger unit itself.

Rather it acts as shielding for the electrical pins and a ferrous attractor for the magnet in the laptop. Third- party products. Since this uses an actual Apple product, purchased legally, manufacturers believe that no licensing agreements are needed (a principle referred to as the first sale doctrine) and the patents are not violated. This, in turn, means that it is not possible to use the new Mag. Safe power adapter with these Mac. Books. Since mid- 2.

Mag. Safe AC adapters (either from Apple or third- party suppliers) that work with these Mac. Books, forcing owners to look for used original adapters. In 2. 01. 1, Apple posted a support document about the strain- relief problems with the MPM- 1 (. The i. Book series introduced a charger that resembled a mini- stereo plug with an additional metal ring.

Technical specifications for the MacBook Pro "Core i7" 2.8 15" Mid-2010. Dates sold, processor type, memory info, hard drive details, price and more. Crucial Memory and SSD upgrades - 100% Compatibility Guaranteed for Apple MacBook Pro (13-inch, Mid 2010) - FREE US Delivery. Technical specifications for the MacBook Pro "Core i7" 2.8 17" Mid-2010. Dates sold, processor type, memory info, hard drive details, price and more. Table of models for Macbook A1181 family; Model Early 2006 Late 2006 Mid 2007 Late 2007 (Santa Rosa) Early 2008 Late 2008 (White) Early 2009 (White) Mid 2009 (White. More ways to shop: Visit an Apple Store, call 1-800-MY-APPLE, or find a reseller.

The first puck- shaped i. Book chargers simply had a silver plug body, but the square white chargers introduced a color- changing illuminated ring that indicated charging status.

Tripping on an i. Book cord or yanking the cord out at an angle could bend the spring contacts inside the connector or break the solder pads under the connector, resulting in a laptop that would fail to charge when connected to the cord, or would only charge if the inserted plug were propped up or pushed down at an angle.

An especially forceful yank could flare the outer flange or even break the tip of the power plug. Replacing a damaged . The puck was the first model of charger with this connector. Example of a damaged plug due to being pulled forcefully out of the socket sideways. This strain is severe enough to damage the power socket also.

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References. November 8, 2. Retrieved July 9, 2. Retrieved 2. 8 October 2. Retrieved 2. 8 October 2. Archived from the original on 2. Retrieved 3 December 2.

Mobile Mac (blog of Macworld). Retrieved July 9, 2. Ars Technica. Retrieved July 9, 2.

Mobile Me (blog of Macworld). Retrieved July 9, 2. Ars Technica. Retrieved July 9, 2. Ars Technica. Retrieved July 9, 2. Knowledge Base. There's Now a Settlement for That – If You're an Owner of a T- Style Mag.

Safe Connector That Has Frayed Through no . Ars Technica. Retrieved July 9, 2.