Engineers reveal ‘mysteries of Apple device charging’

Engineers behind the Altoids box-based iPod and iPhone charger Mintyboost have discovered Apple’s latest way to provide the correct charge to newer iPods and iPhones. According to a lengthy, detailed post and video, they discovered that newer iPhones draw more power than the Mintyboost’s two AA batteries can provide. To get around the issue, the group reverse-engineered a Griffin TuneJuice, and discovered that by using different voltages and resistances, they could signal the attached device to draw less power, thus enabling the two AA setup to power newer devices, although at lower-than-maximum power. More information is available at the above link.

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