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USB-C PD直充相机（如索尼A7M4、佳能R5）在录制视频时可边充边拍，但输入功率需≥30W才能实现拍摄中净充电，20W适配器只能减缓耗电

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UnverifiedUSB-C PD协议通过5V/9V/12V/15V/20V几档固定电压档位供电，PPS（可编程电源）则支持在3.3-21V间以20mV步进连续调压，这是安卓旗舰实现40W+超级快充的技术基础77% similar UnverifiedUSB口需看是否支持PD/QC快充及总输出功率，多数智能排插USB总输出仅18-30W，多口同时充会降速，不能替代独立充电头76% similar

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