How to charge a power bank?
As electronic devices have played an irreplaceable role in our modern life, keeping their battery alive is a constant concern. Needs create idea and market, power bank comes up to become the best partner of electronic devices.
Power bank is very easy to use, simply plug a USB cable into the device which needs to be charged, in a similar way in order to charge a power bank, insert the USB cable into a qualified USB charger or a computer and connect it to the power bank, apparently applying a USB charger will be more effective due to higher output current rating.
Most customers only pay attention to the key features like capacity, how many times and how fast the power bank can charge devices. Don’t forget there is one more question you need to ask– How long it will take to fully charge a power bank?
The input rating is the key when it comes to recharging the power bank – the higher is the input current rating the more quickly it will charge. You’ll usually see a figure in Amps on charger, for instance 1A. You multiply this number by the voltage (5V for USB) to find the rating in Watts. A 1A input can charge at 5W, anyway, you would better look for a device that can charge at 2A (10W).
How to charge a power bank faster?
Do note that for a high capacity power bank like 20000mAh, 2A input rating is not the best solution. Let’s assume the power conversion rate is 90%, it will take 20000 mAh /2000 mA / 90% =11.11 hours to get fully charged, the result is not that acceptable. How about 4A input? Let’s take a look, the charging time turns to be 20000 mAh/4000 mA/ 90% =5.56 hours, it saves 50% of the recharging time.
The dual 2A input ports allow EasyAcc 20000mAh Power Bank to halve the charging time to get full juice, however, you need to apply a dual port USB charger to plug 2 cables in it. This monster can automatically detect the input of devices connected and therefore output the most appropriate current due to the Smart technology applied in it, making the charging process safer and faster. Four USB ports with a total 4.8A output make it possible to charge four devices simultaneously at full speed. More information about how to charge and use EasyAcc 20000mAh Power Bank is released in the video below.