So i just bought a new phone Alcatel pop c3 . And i have this problem that when i charge my phone to 100% and when i unplug it it goes to 99% in a second.. please take a look at this pictures any ideas?
That is normal behavior to see a drop by as much as 5% right after unplug.
I'll try and keep it brief but the charger cuts off at full and does not start again until it drops to 80-85%, depending on manufacturer, model, etc. Even though the phone is still plugged in it is consuming a little battery but the meter will not reflect that change in actual fill state until unplugged unless it gets below the threshold to start charging again. If you are turning the phone off when charging you'll probably see it take longer than a minute to drop but boot up is going to take a little juice so again you'll see a change quickly.
The dramatic drop needed to start the charge again is a safety feature designed into devices using lithium ion/polymer batteries.
Hope that helps. I can post a link with all the technical stuff if you need to see the brass tracks of how it works.