1. How to choose your......
POWER BANK

3. Understand the capacity of Power Bank ! Bigger is always better!1
Understand the capacity of Power Bank ! Bigger is always better!

4. Power Bank capacity range - 2,000mAh to 30,000mAh
Know the battery capacity of your gadget
DO NOT buy Power bank which have less power than the battery power your gadget

5. 1560 mAh
( Once )
3120 mAh
( Twice )
Iphone 5S
Battery: 1560 mAh
10000 mAh
( At least 3 to 4 times )

6. Output ports and Ampere output – Charging Speed!2
Output ports and Ampere output – Charging Speed!

7. VS
Most powerbanks will come with 1 output port ( 1A ), letting you charge 1 device at a time
Some devices comes with 2 output port : 1A and 2.1A.
1A – Smart phone ; 2.1A – Smart phone + Ipad/Tab
The usefulness of a powerbank is its versatility

8. Brand Name, Build And Cells Used3
Brand Name, Build And Cells Used

9. Do you know why most China Power Bank are so cheap ?

10. Your China-bought power bank could be filled with sand… There aren't even enough sand to build a sand castle !!!
A citizen of Taiwan recently bought a powerbank (made ​​by companies in Shenzhen, China) with a very large capacity, it’s 24,000 mAh at a very cheap price. When it’s used to charge a cell phone, it’s fail. Needless to say, the device above is actually a fake with the enclosure being packed with sands. That little cylinder next to the PCB board is the actual battery. From the looks of it, it'll probably be less than 2400mAh.

11. it could be filled with mismatched batteries
Taken from a newly purchased cheap power bank, opened up for inspection.
Note that the colour of the 6 Li-Ion batteries are all different, which is very unlikely if they are manufactured from the same batch.
The soldering point is rusted and shows sign of multiple re-soldering.
Leftover glue on the surface.

12. Genuine power bank uses either lithium-polymer battery cell or lithium ion battery
Lithium-polymer battery cell Lithium ion battery cell

13. Thus,
Do not buy power banks from unverified sellers, or directly from China.
Pay a little bit extra, get your stuff from reputable brick and mortar stores or even from Storekini.com where they have a large range of Power banks for you to choose from.
You don’t have to avoid China brands like YooBao, but make sure you get it from someone you can trust.

14. 4
Power Bank features

15. Power Bank has some features related to your gadget.
choose the Power Bank which has the following features:
Protection of short circuit. As we know fires are often caused by a short circuit. Choose a bank that features a power cut power when a short circuit occurs.
Protection of overcharge. We need the Power bank can automatically cut off the electricity when charging the battery is full, because overcharge will certainly shorten the life of the battery bank either battery the power or battery gadget.
Protection from high temperatures. This gadget is very important so you do not have problems, as well as your battery.

16. for the safety of your iPhone, Blackberry or Android gadgets.
Auto Off feature
for the safety of your iPhone, Blackberry or Android gadgets.
when your phone battery is fully charged, the charging process of Power bank will automatically stop.
prevent these undesirable things such as over-charging or overheating.
* Notice of the power bank battery Cells. Make sure the battery in the Power Bank is genuine and not refurbish. Completeness of the Power Bank should have the A / C, connectors, light indicator and other equipment that support the performance.

17. OUTPUT PORTS & AMPERE OUTPUT BRAND, BUILD & CELLS USED
(1.0 A & 2.1A)
CAPACITY
( BIGGER IS ALWAYS BETTER )
HOW ???
BRAND, BUILD & CELLS USED
FEATURES

18. Do not be dazzled by the price too low so that you do not regret it.
If you choose the right power bank, then you will secure your gadgets from a serious problem.