Power bank
The contentiousness use of the mobile phone has enraged external batteries one of
the essential trimmings in our day-to-day life, so much, so that some peoples
do not leave home without them. Moreover, it is that this simple device allows
us to charge our Smartphone is wherever we are. There are many power
banks, but they are not all the same. If you are going to buy an external battery for
your phone, these are the several keys point that you should believe to
make your choice right.
Capacity:
A look at the marketplace returns model
above 20,000 mAh . The more power, the more times we can charge our
phones, but at the cost of transfer a important external battery. The idea is
to find a compromise between functionality and density.
Though company provides us with
milliamp-hours (mAh) of capacity of the power bank, this figure does not
correspond to reality due to aspects such as the efficiency of the devices itself
or the operating temperature. Likewise, with the passage of time the capacity
of the batteries diminishes, because of their deterioration. A simple way to
estimate the actual capacity of an external battery is to approximate it to
65-75% of its notional capacity.
What
capacity is most favorable? It depends on our requirements, but a good opening
point is that at least once we can totally charge our smart phone. If you are look
for a model to give your phone's battery a boost that hardly takes up space,
there are very solid models such as the 5,000 mAH AUKEY Mini ( 12.99 euros ) or
this 6,700 mAh RAVPower ( 15.99 Euros ).
Though, for a stability connecting
lightness and functionality, the 10,000 mAh battery are motivating , which can provide
us with about 5,500 mAh, which in general will be enough to charge our phone
once in full and a little more, which never hurts.
How long does it take to fully
charge?
The object of a power bank is that
it is for all time ready to charge our phone, so the ideal is to leave the
house with the battery at 100%.
In this sense, it is necessary that
it be charge as soon as promising and for this, we will verify the supply
amperage, or what is the same, the number of electrons moving per next along
the cable. Taking into financial credit that we are going to charge it in a
plug, the higher this figure, the better.
Of course, it is of little use to choose an external battery with ambitious charging specifications if we do not use a charger capable of supplying those volts and amps enough. And is that the power banks do not include adapters, so we will have to use our own.
What kind of port does it use to supply itself?
The type of port used to load has a lot to do with the preceding point. Although the power specifications are usually available, a good way to know if it charges fast is to observe the connection that it uses to power itself , since the charge speed is connected to the type of port : where the USB-C type o USB 3.0 are faster, input ports such as USB 2.0 or mini USB 2.0 anticipate more limited speeds.
In adding up, in the event that it
uses USB-C and your phones has the same port - present for example in the Huawei
P30, Galaxy S10 you can "murder two
birds with one stone" using the same one. Cable and adapter both to charge
the phones and to power the battery.
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