battery icon on home screen changing color

Hello mtclimer1,

I understand that your battery icon is changing colors and you want to know why. I am happy to help.

Take a look at the article below for what the icons and statuses on your iPhone mean.

Status icons and symbols on your iPhone

If you're seeing that the battery goes from green to red and then to yellow, the yellow means power saving mode or low power mode.

Use Low Power Mode to save battery life on your iPhone

If you're seeing some other colors then what is mentioned above let us know what colors you are seeing.

Let us know if that resolves this issue for you. 

Thanks for using the Apple Support Communities. 

Take care.