whats this Icon that appears for 5 seconds

[Android Central Question]

I get this Icon that appears in the top left of my Galaxy S8 for about 4-5 seconds and then it disappears.

It's a white rectangle filled box, with what is best described as a either a line graph chart, or a heart beat line on a hospital machine. starting from the left going to the right. It goes across, up a little, down double the length it went up, Up alot then back down where it stops that the original starting level, where it finishes with a little ball.

There is no consistency of when this appears, but it shows up for a few seconds and then disappears.

I have searched 100s of icons but cannot seem to find it.

I do know it is not the NFC Icon or the screen picture one.

Please Help!

 

[Jason Fournier1]

It tells you what is consuming background power.

 

[billsterjito]

Jason is correct

If you ship down on your Notifiсation shade when the icon pops up it will tell you what apps are using battery in the background