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J4 powerbank-Practical application version

Can quickly understand the advantages of J4 powerbank

J4 powerbank-Complete version

Complete version

J4 powerbank-Streamlined version

CJ4 Mobile Power - Key Version

JW cable box

Millions of users recommend - rapid charging cable box, for those who want to charge and often forget to bring the wire, you can refer to this video.

JW cable box - instructions for use

Operating instructions for the wire box for 2-in-1 (MICRO and IPHONE)

J4-無限並聯演示

同時充電-同時放電

J4-輸出電流測試

以IPHONE XR做為測試-輸出高達2.05A

J4-夾附手機教學

如何夾附手機-內有兩種做法

J4-支架教學

如何當作支架使用

J4-固定扣教學

固定扣教學

J4-電池放入教學

電池放入教學

J4-電池保護板教學

市面上帶保護板的電池-不支援

J4-燈號顯示講解

※注意事項:更換電池後,更改為電壓顯示電量,
如需電量顯示十分標準,請在電源內將電源充滿即可,
電量顯示不影響電源功能,一切使用正常。

J4-並聯充電掩飾

並聯充電掩飾

J4-並聯入電演示

並聯入電演示

J4-電源收納盒使用教學

電源收納盒使用教學

J4-u型線材使用教學

u型線材使用教學

J4-Related test

Ios charging test

J4-Related test

Charging lamp test

J4-Related test

Positive and negative terminal protection IC

J4-Related test

Maximum current & excessive current protection

J4-Related test

Temperature over temperature protection IC

J4-Related test

Over discharge current protection IC

J4-Related test

Overvoltage protection IC

J4-Related test

Output Power Trial - (non-BSMI laboratory test - belongs to PCBA test efficiency mode)

J4-Related test

Output short circuit protection IC

J4-Related test

Output overvoltage protection ic