What is power bank?
The consumers living standards is improving with the rapid development of the global economy.And with the expansion demand of people,there are more and more portable consumer electronic products coming out in the world,such as mobile phones,digital cameras,ipad...
All these things need electronic to keep them work.But these is one thing that confuses people is that the capacity of the device's buit-in battery is too low,the use time isn't enough for a frantic device use guy.People takes much time to play games,chat with people,surf the internet using the device.Even when traveling or on the business, it is the peak of using these devices, it appears that mobile is on the phone, the digital camera is taking pictures,PSP is playing games playing.
At this time the battery run out of power easily, make you feel the buit-in battery is very helpless and powerless.To solve this annoying problem,the power bank comes out.
A power bank is a device which used to put energy into a secondary cell or rechargeable battery by forcing an electric current through it.
Power bank can help many devices to solve the power shortage problem,and that let you have enouth power to use the device.Power bank's capacity is from 1000mA to 20000mA or more.It has a attractive outlook,it is small size, light weight,so it is easy to carry.The power bank's biggest usage is for the mobile phone,for Apple: Iphone 5s, 5c, 5, 4s, 4, 3gs, Ipad 4, Ipad Air, the New Ipad, Ipad Mini; Samsung Galaxy S4, S3, S2, Note 2, Note 3, HTC One, Evo, Droid Dna, Motorola Atrix, Droid and so on.
That is the power bank.