5伏4.5安线充电快还是9伏2安快

5伏4.5安线充电快还是9伏2安快
2025-03-14 23:36:59
推荐回答(2个)
回答1:

两种快充方式,理论上是5V4.5快10%—20%左右,但必须保证原装充电线。9伏好处是不挑剔线只要带着原装充电座就行,9伏在手机端会有个高电压转大电流的转换,充电时手机发热会略高于5伏大电流。另外有人喜欢去买长距离充电线,这时候9伏电压就有绝对优势了,充电线越长充电越慢,两米的充电线如果选用5伏4.5到手机大约只有1A左右了变成了慢充。如果用高电压9伏两米后至少还有8伏,快充不受距离影响。

回答2:

如果你的设备是5V的,那是大电流的快,如果用9v的充,会把电池搞坏。如果电池是9V的,5V的充不满。

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