Power Bank Introduction
If you are looking for a way to charge your digital devices when no AC power is available, a power bank should be your best choice. Some power banks have a large capacity as high as 30,000mAh, so it will keep your digital devices running for extra hours or even days depending on your usage and the battery capacity.
A power bank usually comes with various connectors (Like micro-USB, Nokia 2.0, Sony, iPhone, etc), which can be used to charge up to 80% of all mobile phones, like Apple, Samsung, Nokia... What’s more, this doesn’t excluded its capacity to charge your other digital devices like MP3, MP4, GPS, laptop, digital camera, etc, since now all companies is using universal connectors like the new micro USB standard.
The power bank was particularly designed for you to tale along on business trips, camping expeditions, traveling... It will serve you well, especially if you need your digital devices almost all the time.
A power bank is usually slick, portable and can help you in lots of ways. Where does this power come from? It simply comes from the power retained by lithium ion battery (li-polymer battery) after a full of charging.
A power bank device requires an input current based on the specification of the device and minimum voltage if DC5.0V. It can be recharged through a USB connector of adapter. It also has an automated on/off technology which turns off charging your battery when your device is fully charged. This is just to prevent overcharging.
Like other electronic devices, a power bank had its safety precautions. In order to extend the life of your power bank, you need to charge it for its allocated times as to prolong its life, keep it away from water or fire and use it under proper guidance, it is better to read the precautious before using.
Purchasing a power bank is necessity, especially if you often have business trip or traveling.