A power bank is an external battery enclosed in a case. In the absence of AC power, it can be used to charge electronic devices. It is designed to serve as a back-up charger for people who are heavy smartphone users and are constantly on the move, such a business executives travelling for meetings, campers, people on vacation, or anybody who does not have access to a power outlet. A power bank considerably enhances battery life and can be used to fully charge your mobile phone two to three times before discharging completely. Power banks are manufactured with varying capacities and can have a capacity as large as 20,000 mAh. They are available in various shapes, sizes and capacities such from 1200 mah to 2600 mah or even 12000 mah. Their lightweight characteristic allows them to be carried and stored conveniently in purses or backpacks.
A power bank needs to be connected to a power source to get charged. It requires an input current according to the specification of the particular device and a minimum voltage of 5.0V. It usually comes with a USB connector or adaptor and can be plugged into a power source such as a laptop, tablet etc. Once it is charged it can be carried and used according to your needs.
There are typically three kinds of power bank. The most convenient one is the portable charger case. It looks like a normal mobile protective case, however, it functions as a back-up power source in times when your smartphone’s battery level dips. Another type of power bank that is currently more common in Pakistan is the USB power bank, which connects via a connecting wire to your phone. Just charge it to the maximum capacity when you have access to a power outlet and it becomes usable for a significant amount of time. A third type is the solar charger that uses sunlight to become charged. It is ideal for people who spend a lot of time outdoors as no extra power source is required other than sunlight for these power banks to work.
The advantages of using a power bank are manifold. Gone are the days when the only solution to charging your mobile phone was to hurriedly locate a power outlet and wait while the battery was charged enough to last you a while. You no longer need to compromise on your movement; a power bank provides you with constant power on the go. Just use a USB connector to plug it into your phone and continue using that ever-so-important smartphone. If you’re out in the woods enjoying what nature has to offer, but also worry you might lose touch with the outside world, a solar power bank is the ideal device. While you bask in the sunlight, it ensures that your smartphone remains full on power.
However, as with all electronic devices and especially when it comes to batteries and chargers, one needs to take certain safety precautions when dusing them. For optimum performance, a power bank needs to be charged for the allocated time, protected from water or fire and should not be damaged externally. If it heats up at any time, it should be disconnected from the power outlet immediately.
As far as buying power banks in Pakistan is concerned, kaymu.pk has many sellers on board that stock power banks. For people who are too busy to go to Hafeez Centre or Saddar, Kaymu brings to you these useful and handy devices at your doorstep. And it is not just restricted to those living in Lahore or Karachi, with kaymu.pk, you can get your item delivered to the farthest corner of Pakistan. A laptop or smartphone with a functional internet connection is all that is required. So log on to kaymu.pk and order away.
