Why is my iPhone battery showing a red battery icon? 


If you notice your iPhone’s battery icon is turning red, it means your battery level is now at 20% or lower.

Therefore you should charge your iPhone to get to full 100%. If you slow done battery consumption, you can turn on Low Power mode to lower the battery drop.

You can turn on Low Power Mode at Settings > Battery > toggle to enable “Low Power Mode”.

You can check here why my iPhone’s battery colour has turned to yellow.

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