charge, or USB adapter will not be able to trigger the PD protocol. Fast charging supported for iPhone 12/12 Pro/ Max when used with USB-C to Lightning cable(Not Included) Doesn’t charge
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THIS should work
USB Charger 5v 2.4a,Cabepow [2Pack] Dual Port 12W USB Wall Plug,Charger Block Adapter Cube Replacement for iPhone Xs/XS Max/XR/X/8/7/6/Plus iPad Pro/Air/Mini, Galaxy9/8/7(ETL Certified) White
It will do a faster charge than the original 5w charger block that came with the iPhone 6S.
However, the iPhone protects itself from overheating during charge so limits how quickly it will charge. This is not only to stop the battery from expanding during charging but also to get the most out of its expected life.
The faster you charge (i.e. with greater wattage), the more it can damage the battery, especially with older technology batteries... hence the circuitry to limit charging cycle overloads.
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