Iphone 7 Charging Rate

It's purely 5V through standard Lightning cables, although I believe it can tolerate a slightly higher voltage. I don't believe any iPhones use anything other than nominal 5V inputs.

The max input current should be 2.1A. That may not actually be the max charge rate to the battery because obviously other circuitry will be operating. And of course once it gets closer to 100% the charge rate drops to protect the battery from overheating.

Sadboy69 wrote:

Thank you.

"I don't believe any IPhones use anything other than nominal 5V inputs.", I thought the Iphone 11 Pro ( newer Iphones ) now uses 18W charger provided from apple, I believe either the voltage / current increases right ?

I wouldn't need to be a higher voltage. I was under the impression that iPhones specifically used 5V. It could be that the new ones do accept higher input voltages, although Apple is pretty tight-lipped on what they do. Anyone have one of the newer 18W supplies with the output voltage specified on the power adapter?