Many smartphone owners are confident that if you connect the phone to a USB-charging with a large current (eg tablet), a smartphone can burn.
Many modern chargers have poverbanki outputs currents 1A and 2.1A, which often depict characters smartphone and tablet.
In fact, a smartphone can be connected to any of these outputs and the charger will not damage the plate smartphone.
The smartphone can fire only if the charger voltage produces more than it needs, and the current, indicated on the charge - it is simply the maximum current that it may issue a smart phone and will take from it as much as he needs.
All conventional chargers with USB output (at least for a smartphone, at least for the tablet) have an output voltage of 5 volts (now there are fast charging with Quick Charge, which can voltage issue 7, 9 and 12 volts, but initially they give the same 5 volts and the voltage is increased only in agreement with the electronic circuit charger supporting this technology).
Of course, for all the people who are familiar with the electronics, everything I wrote above it is obvious, but many normal users are afraid to connect their smartphones to the charger, which indicated large currents. And for good reason.
© Alexey Nadozhin
The main theme of my blog - Equipment for human life. I write reviews, share experiences, talk about all sorts of interesting things. My second project - lamptest.ru. I test LED lamps and help figure out which ones are good and which are not.