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Yahoo!奇摩知識+ - 分類問答 - 手機通訊 - 發問中
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關於汽車用藍芽耳機與PC、NB的USB電壓疑問
Aug 8th 2013, 09:01

小弟手上有一台藍芽耳機是汽車點菸器轉接成類似USB的接頭。
然後提供給來芽耳機充電使用。

而藍芽耳機的電壓規格如下:

工作頻率:2.402-2.480GHz

電池規格:3.7V/50mAH 可充電鋰電池

充電電壓:DC4.75-5.25V

充電時間:約2小時

汽車點菸器轉接頭是有兩個USB插槽,一個接給藍芽耳機用,還剩下一個插槽。

請問汽車點菸器的電壓電流是多少呢?

如果我把上述規格的藍芽耳機拿去給電腦或NB的USB充電,這樣藍芽耳機會不會壞呢?
鋰電池會不會壞?
在車上還有一個USB插槽,可以插一般USB接頭的電子產品嗎?

是汽車點菸器的電壓比較高呢? 還是電腦與NB的USB插槽電壓比較高?

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