MagSafe Battery Pack teardown confirms dual-cell design

MagSafe Battery Pack teardown confirms dual-cell design


Screenshot: Charger Lab

A teardown of Apple’s new $99 MagSafe Battery Pack from Charger Lab has given us our best look yet inside the new accessory, and revealed more details about how it works. For starters, it confirms recent speculation that it uses a pair of battery cells wired in series like Apple’s previous Smart Battery cases, but it also gives us a look at the NFC circuitry and heat shielding within.

A dual-cell design is important, because it allows the voltage of the battery pack to be higher than a comparable single-cell design. While each individual cell is labelled as being 3.82 volts, the overall voltage of the battery pack is 7.62 with them wired in series. It means the pack should be capable of supplying more power than its 1,460mAh capacity…

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