Can You Charge an iPhone in 9 minutes?

Scotty at Strange Parts was tired of forgetting to charge his iPhone and then waiting almost 2 hours for it to charge. He decided to try a number of crazy hacks to see how much time he could shave off that.

First, he tried hooking together 100 regular 1 amp iPhone chargers to make one giant charger. That didn’t work because of the BMS (Battery Management System) in the phone that’s there to provide current-limiting protection. He tried bypassing the BMS and using off-board LiPos. But that only shaved off maybe 30 minutes.

In the end, he tried hooking the phone to a 5000 farad lithium-carbon super capacitor with a charge current of 47 amps. With that, he was able to get a full de-charged iPhone 8 to charge in 9 minutes. 9 minutes!

But, carrying around a large, flat supercap with your phone is not very practical. So, for now, Scotty (and the rest of us) will just have to live with the slow-charging phones that we have.


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