[問題] QC的12V是幹嘛用的?
QC2.0/3.0的充電器好像幾乎都是這種規格
5V/2A(或2.4A) OR 9V/2A OR 12V/1.5A
12V的電流總是比較小
但是一算 9V2A和12V1.5A
電功率不是一樣嗎= =
那12V的電壓到底是幹嘛用的?
而且好像還沒有看過有人充電真的衝到12V過
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