Apple’s MagSafe battery pack disassembled | heise online


Apple’s first magnetic battery pack for the iPhone, the so-called external MagSafe battery, has been on sale this week – online and in brick-and-mortar stores. The specifications of the hardware intended for the iPhone 12, 12 mini as well as 12 Pro and 12 Pro Max were initially kept secret by Apple, so it is now interesting to learn more about the technical details. The power supply specialist Charger Lab from China has therefore now subjected Apple’s MagSafe battery pack to a teardown. Right from the start it becomes clear: This hardware apparently cannot be repaired.

Because the plastic housing of the MagSafe battery has to be opened with brute force. As the video shows, there is a lot of technology in the battery pack. There is not only one battery in the pack, but two – each with 5.733 watt hours (at 7.62 volts). These are placed next to each other. On the back there is a large metal plate that serves to dissipate heat. 16 magnets are integrated for the MagSafe hold.

More from Mac & i

More from Mac & i

More from Mac & i

More from Mac & i

There is control electronics for inductive charging and a battery controller. In addition, two charging coils are installed. There is no on / off switch – the battery pack is activated when it is attached to the iPhone. The system also automatically switches between 5 watts of charging power and 15 watts of charging power – the latter only if at least 20 watts are available via a Lightning cable.

Apple’s external MagSafe battery is not only capable of charging iPhones. As the first owners of the new hardware report, the battery pack also charges AirPods and AirPods Pro – as well as other Qi-compatible devices. It had already become known that the magnetic battery pack for the first time enabled a function in the iPhone 12, 12 Pro, 12 Pro Max and 12 mini that had been rumored for a long time: the so-called reverse charging, in which the iPhone inductively charges another device .

If the battery is attached to the iPhone, it can charge the external battery if a power supply unit is plugged into the iPhone (and not the battery pack) via a Lightning cable. This is the first time that such a function, as has been known for a long time from Samsung cell phones, is being implemented at Apple.


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