Anker 20100 does not charge Note 9 past 95 percent

#1

Hi all,
Bought a new Anker 20100 and fully charged it (took a few hours), plugged my Note 9 into the Anker but only charges the phone up to 95 percent, then stops.
Also I noticed that when I’m not using the Anker to charge anything, the 4 blue LEDs turn on for a few moments then off… then on, then off, without me pressing the button. Is this normal?

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#2

Have you tried charging your note 9 through another power source since you used the battery?

The second problem is normal :+1:. If you don’t plug something in then the battery turns off after a few seconds :+1:

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#3

Yes I have charged my Note 9 with my Samsung charger and no problems.
The 4 blue LEDs turn on when the powerbank isn’t being used. It’s random. I leave it on my table and i don’t touch it, the leds turn on, then off… a few seconds later they turn on again and off.

#4

I would recommend contacting anker support at support@anker.com

Good luck!

#5

Here is a video of the LEDs


I will contact support and let you know. THanks.h

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#6

Yep. The LEDS are supposed to do that. It’s actually he powerbank powering off. Since your not charging Anything, it does that to conserve energy…

#7

Wonder if your phone isn’t drawing enough power for the charger to stay on.

#8

I doubt it since it’s only the last 5%.

Electronics (and batteries in general) draw less power in the last 20%.

#9

You’re right, and the higher the charge level the more resistance there is, so power draw becomes less and less.

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#10

its usually around 90% or more that the current starts reducing since the voltage is very close to max. CC-CV charging profile switches from CC to CV.
May be 20100 has a auto switch off when current reduces to certain value (that value may be below the charging requirement for Note 9)

#11

Yes but it keeps turning ON first…by itself.

#12

Of course it does. You push the button and power it on. Them the powerbank realizes nothing is plugged in, so it powers off.

#13

I think you don’t understand me. When I am not using it, not touching it… the leds turn on and off.
I mean I place the battery bank on a table in the kitchen, and walk away from it. I am not standing near it. I am 1-2metres away… the LEDs turn on and off. I am NOT touching the button. I am NOT touching it at all!

#14

Can you post a video of that? In the video you posted, you hit the button to turn it on.?.?.

#15

@TechMan He did post a video of it. Post #5. I would just contact Anker support.

#16

In that video they clearly hit the button to make it turn on.?.?.?

#17

But only in the beginning… then a ghost is pressing it after that initial press!!!

#18

Oh, I guess I should have watched the whole video :pensive:. Sorry, I did something stupid…