We know that the power bank is very important when we travel for two to three days journey.
Bhut there is most important thing about power bank is uts capacity and as well as its charging speed as we know many more local companies are selling power bank online in very low price but there is no profit in its.the only waranty of 6 months are given there and non of those local power bank can charge a single phone within 3 hours. so as per if we select expensive but branded power bank instead of any other local companies which are make our time waste have to choose a better branded power banks like sony and mi as well as samsung.
I have experienced a local power bank which is just waste for me now.and I m looking to buy a new one
By checking its charging 3.7-4.5 mhz.