if 1A = 1000mA ..

why is power bank rated in mA. ???

why 2200mA .? is it not same as 2.2A. ??

we dont say 1200meters.. .  = 1.2km...

Depend on ur capacity u purchase.

mine is 30000mAh, and it says 500cycles only. WHich I think it is very less..

18650 cells ranges from 1600mah to 3400mah (panasonic 3400mAh, made in japan)

so lets say your powerbank is 6 cells, max is only 20,400mAh, these cells are sold for about RM 45 per cell, so the cells alone for 6biji is already RM 270.

so how could your unit be 30,000mAh ?

I dont know bro.. this was a gift to me by my sister. I just mentioned what it is written on the label..

thin type like handphone thickness right ?
should be about 4000 to 5000mAh max ler.

the battery capacity is max like that only

No bro.. it is damn thick, too big and heavy till my sister doesn't want it and give it to me. I it like 2.5 - 3x S4 phone thick..

not sure d....might be 18650 x 6 pieces.
can charge your phone how many times ?

Havent start to use it yet. Just got it yesterday... let you know when I start to use it..

Is that a LiPo from RC planes? What converter did you use?

PART 3: Lithium-ion / polymer （not 18650 battery，18650 is similar to AA type of cylindrical battery）

Borrowed another powerbank from my friend， it say it is using Li-Po ，smaller and thinner size.（diameter of 18650 battery is 18mm，this one is less than 18mm thickness）
The rated capacity is 5000mAh，everyone can guess how much is the real capacity?


Battery inside is thin, but is it soft one, if you press it, it will not restore back to the original position.


The voltage regulation is not good as PINENG powerbank, it fluctuate much more.
Some of the data taken:
4.77V 0.92A
4.80V 0.93A
4.64V 0.89A
4.48V 0.86A
4.37V 0.84A

From my calculation, the real capacity is only1.82W
Rated capacity 3.7Vx5000=18.5W only9.84% is the real one.
this powerbank had been used for 1 year plus, now only remain 9.84%，1.82W even can't charge iphone for half time.

For your information
Even though there aren't sand inside the powerbank, it doesn't mean it has real capacity.
For example: I opened a powerbank, inside contain 4 pcs of 18650 battery, if I said each 18650 battery has capacity of 10000mAh, 4x10000= 40000mAh. This can charge note 2 more than 10 times. Will you believe it?    Don't laugh, there are people will believe this.
Remember the highest capacity of 18650 battery is 3100mAh，manufactured by Panasonic. Those who said it has 5000 or 10000mAh are cheating.[/size][/backcolor]
If the powerbank is not using 18650 battery, but is Li-Po type, the price is much higher than 18650 type. Li-Po is extra thin and slim. Manufacture price also higher. Those who sell at cheap price, you know la 

Another sharing
Anyone can guess what is this ?

It is battery but not AA type，is 18650 battery，it is used in our laptop battery, this is called 6-cell type.
This battery I disassembly from Lenovo laptop, rated capacity is 48Wh, each 18650 battery contain 8Wh, or 2162 mAh.

Everyone can see that even laptop also use 18650 battery, don't think that this type of battery not good, it is cheaper than Li-Po type.

Hi I have bought a power pack and battery separate the battery says it's a ultra fire 6000mah 3.7v  there are also a lot of people selling the exact same brand. Do u think I have been conned

Is that a LiPo from RC planes? What converter did you use?