Why is my smartphone charging backwards?

Question

Mobile devices

When charging a smartphone, at first everything goes well "charging in progress" 28%; 38%; 44%. Then everything goes in the opposite direction "there is a charge" but the percentage of charge goes down. Help solve this problem.

Answer 1

most likely, the battery calibration has gone wrong, try to completely discharge the battery (so that the device turns off by itself), remove it for 2-3 minutes, put it back, and, NOT turning on the phone, fully charge

Answer 2

There may be a problem with the charging cord to the phone.

Answer 3

Well, either the battery or the charge controller is dead, or they will change you to the service