How to pick the right power bank for you mobile or tablet?
1.Analyse your device first-First you need to decide what device you want to charge whether it’s a mobile or a tablet and what’s its battery capacity.
For example, I have a OnePlus One which has 3100 mAh battery and need a current flow of 2 Amperes plus for it to charge fast otherwise it will take it ages to charge.You can find the optimum current flow by seeing the details in the prescribed charger.
2.Power Output-I would recommend buying a Power Bank which has at least one port to deliver current at more than 2 Amperes.There should be at least 2 ports for charging multiple devices at one time.Though you buy a power bank with more capacity it is of no use that your device takes ages to charge.
3.Capacity-This is the 3rd important thing one should keep in mind before buying a power bank.You should take a power bank with twice or thrice capacity of your device.

For example, if I need to buy power bank for OnePlus One I would choose a 10,000 mAh almost thrice capacity.
4.Manufacturer-I would recommend you to buy power bank online and by companies like Xiaomi, Ambrane, Lenovo or Intex.Please beware that duplicate models are available on the market and sold on roadside shops and shouldn’t be bought as they are fake and can be dangerous ignoring the cheap price at which it is sold.
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