小米行動電源2 20000mAh故障狀況及排除 - 手機討論

By Susan
at 2017-02-12T10:00
at 2017-02-12T10:00
Table of Contents
手上的小米行動電源2 20000mAh另外一個輸出一直不太正常,兩組同時輸出時另一組電壓
完全不對
雙插輸出下按鈕開機,兩組輸出會飆高至13V以上
http://i.imgur.com/tYOSVva.jpg
進行邊充邊用時,兩組輸出也會飆高至13V以上
http://i.imgur.com/gAiVuQx.jpg
剛好入手的YZX ZL1100電子負載有含充電定義辨識,便拿出來測試看看
正常的輸出埠(靠近開關的),辨識的充電定義正常
http://i.imgur.com/ON6moEa.jpg
有問題的輸出埠,充電定義辨識不正常
http://i.imgur.com/GcCy9xI.jpg
直接把外殼拆開來看,居然在有問題輸出埠用的FP6601Q上發現一大沱焊錫!!
http://i.imgur.com/TdWPOf9.jpg
直接用手把焊錫摳掉,重新再進行測試,目前兩組輸出5V都恢復正常了
http://i.imgur.com/dpoZsph.jpg
兩組輸出埠充電定義辨識也恢復正常
http://i.imgur.com/wJgiH7l.jpg
結論:
購買充電器與行動電源時,使用前最好用USB電壓電流表先檢測一下輸出電壓是否正常,
尤其是把不支援快充,僅能使用5V充電的裝置去搭配支援快充的充電器/行動電源的使用
情況下,以免輸出電壓異常導致裝置燒毀
--
完全不對
雙插輸出下按鈕開機,兩組輸出會飆高至13V以上
http://i.imgur.com/tYOSVva.jpg

http://i.imgur.com/gAiVuQx.jpg

正常的輸出埠(靠近開關的),辨識的充電定義正常
http://i.imgur.com/ON6moEa.jpg

http://i.imgur.com/GcCy9xI.jpg

http://i.imgur.com/TdWPOf9.jpg

http://i.imgur.com/dpoZsph.jpg

http://i.imgur.com/wJgiH7l.jpg

結論:
購買充電器與行動電源時,使用前最好用USB電壓電流表先檢測一下輸出電壓是否正常,
尤其是把不支援快充,僅能使用5V充電的裝置去搭配支援快充的充電器/行動電源的使用
情況下,以免輸出電壓異常導致裝置燒毀
--
Tags:
手機
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