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iPhone 15 can limit battery charge to 80%. Does this mean there’s now battery passthrough? (www.macrumors.com)

submitted 1 year ago by [email protected] to c/apple_enthusiast

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I limit my laptop battery charge to 80% with a third party software tool. Laptops can generally bypass the battery and directly power themselves from the wall.

Does this new 80% battery limit setting imply that the new iPhones are able to do the same? Implication would be less battery wear while docked on a desk/in a car or due to long “AAA” gaming sessions, since it will draw power direct from the wall rather than using the battery as a middleman.

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[–] [email protected] 1 points 1 year ago

The battery is not always in the power path. I thought that was how it worked for a long time but got clarification from a writer at anandtech who used to do SoC deep dives. When plugged in the iPhone is directly powered by the wall adapter, excess goes into the battery.