April 4, 2021, I bought an interesting auxiliary battery. It's super tiny and has 20,000mAh. So I thought it'd be revolutionary if it's true but...

◆ Info.
You have to be careful when buying auxiliary batterie from overseas directly.
For Coupang, only buy the ones that support the rocket delivery.
For domestic products, check the KC mark.
Check thoroughly even if it has reviews.

◆ Tag.
#auxiliary batteries #Don't just buy #anything

◆ Timestamp.
00:00 Intro
00:12 Opening
00:44 Beginning of the incident
01:50 External design
04:05 Test
05:37 Manipulated review on open market
07:58 Asked Coupang
09:00 How to prevent it
10:32 Conclusion