Modern smartphones, from the point of view of work, much exceeds the first sensory models. An ordinary smartphone keeps charging at least one day, allowing you not to worry that you will remain without a means of communication. However, different situations occur when the gadget can be discharged, and there will be no suitable charger or socket nearby.
What is an external battery
PowerBank is a portable power source, with which you can "feed" any gadgets. By design, it is similar to the usual battery of only large size. It consists of 2-10 batteries connected to the controller board. Here is the usual connector for connecting the USB cable. This is all wrapped in a robust building. The ability to compatibility with any devices is achieved through the use of a universal USB 2.0 port. The cable is connected to it from your tablet, smartphone, MP3 player, cameras.
How to choose an external PowerBank battery - look at the container
This is the main selection parameter. The greater the container, the greater the amount of energy can be stored in the device. Capacity V. Changes mach. You can find devices with a capacity of up to several tens of thousands of millions of hours. Decide which level of charge you will need to see the capacitance of the battery of your tablet or smartphone.
The battery in the average smartphone has a capacity of 2200 mach, and in more expensive models up to 3000 mach. This means that PowerBank is 5500 mach Enough for 2.5 charging cycles. External battery per 10000 mach (fully charged) enough for 5 cycles. If you select charging for the tablet, the container should begin with 20-30 thousand mach.
How to choose an external battery POWERBANK - charging speed and current
The current of the current is the factor on which the charging speed depends. The more ampere, the faster the charging will take place. For smartphones, this indicator should be at least 1 amp, otherwise the charging process will be very long (3 times longer than from the outlet). For tablets, the current strength must begin with 3 amps.
How to choose an external battery - dimensions
Powerbanks There are very different, for all occasions. If compactness is interested in you, you will have to sacrifice the capacity. If you need to recharge your smartphone on the way home, it will not become drama. Small-sized Power Bank are manufactured as breckswhich can always be worn with you. Weight depends on the material from which Power Bank is made. Often portable They are made of plastic, but metallic models are found. Preferred and more beautifully looks like an aluminum gadget, but it is very easy to scratch. In general, the size depends on the functional. Want a powerful charge - buy big powerbank.
How to choose an external battery - indication method
Most manufacturers use LED indication from several small light bulbs. Their flashing signals about changing the charge level powerbank. Yes, many say it is not very informative, but such an indication is enough to deal with the level of charge portable. If you are not enough for you, then you can buy more expensive models with LCD screens and detailed display of information.
We recommend that you do not panic. Think, why do you need this source of energy? Perhaps you do not make sense to overpay and enough will buy portablewhich will be able to recharge the smartphone by 50%. Or do you want to always feel confident with a powerful source of energy? The choice is yours.
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