“Why does the iPhone charge at 7.5 W? With MagSafe, it should charge with 15W? Which iPhone models will charge at 15W? How is the power split if multiple devices are charging?”
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Hi, Great questions! Here’s the breakdown: ．iPhones using MagSafe-certified chargers can charge up to 15W, but only models from iPhone 12 and newer support this speed. ．If your iPhone is charging at 7.5W, it means the charger is operating in standard Qi mode, not MagSafe mode (possibly due to case thickness or alignment). ．When multiple devices are charging, the total power output is shared across all pads. For example, if the station is rated at 15W for the phone, adding AirPods and Apple Watch will reduce the available wattage per device to prevent overheating and maintain safety. --Energizer PowerPacks Service Team
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