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by twobitshifter 1868 days ago
The design of the iPhone and coin cell are similar. The iPhone battery is essentially a wrapped up coin cell. https://m.youtube.com/watch?v=RTjy2eFHzRc

In comparison a package battery like in an EV is made up of many individual cells to provide higher voltages. An iPhone can run on 3 or 4 volts, but a Tesla cannot.