Is it possible to charge with more or less output voltage?

Good day! Is ebook, native charging is not present, at the input says 5V DC. I have an old NOKIA charging from one 3.7 V and another V. 5.7 is it Possible one of them to charge the book?) Thanks in advance for your answers!
July 4th 19 at 23:39
2 answers
July 4th 19 at 23:41
Solution
That 3.7 - just will not work. The one for the 5.7 will work, but there is a possibility of breakage of the device.
The easiest way to use any USB charger, it is 5V DC. cable (solder / twist)
Thank You very much for the answer! - Lindsay.Goldne commented on July 4th 19 at 23:44
When you "test" any charge not forget to check the polarity. Usually Starace outside is a minus, but there are exceptions. (drawn on the power supply and near the entrance of the device) - turner.Beahan commented on July 4th 19 at 23:47
Thanks, I will consider. - Lindsay.Goldne commented on July 4th 19 at 23:50
where 5.7 put another rectifier diode, he only eats about 0.5 volts.
and charging phones are weak and need more amperage compare to not burn the charger - Einar39 commented on July 4th 19 at 23:53
July 4th 19 at 23:43
Solution
See polarity do not mix, usually there is an icon symbolizing a pole on the Central pin and what is on the outside
Thanks for the reply. - Lindsay.Goldne commented on July 4th 19 at 23:46

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