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快充5v9v12v是怎么切换的
更新时间: 2020-11-06 00:00:00  

手机快充插头有多种充电电压,比如说5V、9V、12V等,这三个电压是自动切换的,如果充电使用的数据线最高支持9V的电压,那么充电头就会使用9V电压进行充电,如果数据线最高支持10V的话,那么充电头会自动切换至12V。

关键词: 5v9v12v 怎么 切换

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