Is using advisable for a mobile phone?

Yes. You can use it for charge smartphones. But you need some bit of informations about power banks before going to buy.

Branded or generic power banks , they all have some common properties. Let me clear about this and after reading this message you will be able to choose the 'best' power bank for your phone.

1. MARKING CAPACITY : Marking capacity is the value written on power banks. Generic power banks are selling mostly using this technique. The total capacity of the power bank is varied from the marking capacity

Himanshi Agarwal

Well-known member
One of the biggest disadvantages is, of course, the constantly draining battery. If you purchase a power bank and don't plan on using it frequently don't be surprised when you see that the battery percentage has slowly drained out due to not using it.