Here is a Japanese customer wrote an article about Charmast’s power bank. He bought 2 power banks, one is W1052P, which is 10000mAh mini power bank with qc3.0 and pd; the other is W2002C, 26800mAh power bank with 3 inputs, 4 outputs. He first introduced the W1052P, and compared with...

  I assume that you have already read my other articles which introduced about the PD and QC.   If not, it does not matter as well.   You just need to know PD and QC are the most popular quick charge standard. If not the only 2 quick charge...

Essentially, a power bank is just a smart battery. You can take it everywhere to recharge your phones.   If you are not a geek of engineer, you may probably not take a power bank apart to see what’s the battery inside.   But as a science fan in your...

As a super smart guy since you have learnt math and physics at school, you sometimes should be or will be wonder, Why the capacity of power bank always less than my calculation?   Yea, the calculation is very simple: 10000 mAh power bank recharge a phone battery of 2000...

What is QC 3.0   Of course you can see a lot of power bank makes QC 3.0 on Amazon. And it always tells you it’s a quick charge.   So, What is QC 3.0? Why it is 3.0, not 2.0, not 4.0?   Believe me, if you search “What...