An icon found in the latest version of iOS shows a new Smart Battery case.
Found by Tom on Reddit, the icon was found after he trimmed down Apple's Smart Battery Case for the iPhone 7 to fit his iPhone X. After doing so, the case did function, and also revealed a new icon showing an iPhone X battery case with a vertical camera cutout and slim design.
However, as the iPhone X has been discontinued, we're sure that this icon is for the new Smart Battery Case for the iPhone XS. It was found in action on iOS 12.1.2.
The icon is the same as the one found by in an Apple Fall merchandising guidea while back. It sports a thin design with a Lightning port on the bottom and fits the iPhone XS well, without a chin.
There's now been lots of information about Apple releasing a new battery case, so it's likely they will release it in a press post very soon.
We don't recommend trying any changes or tweaks to your iPhone battery or any accessories that, if damaged, could cause harm.