The Product which you can see is iPhone 8 Plus Battery .
iPhone 8 Plus Battery is a high quality and affordable part.
If your iPhone 8 Plus battery dies so fast When you notice that doesn’t give battery life then new battery installations is pretty reasonable, and certainly much cheaper than buying a new phone. Replace it with below Product.
iPhone 8 Plus Battery is designed to work perfectly.
The image below use to present product is just for reference
Actual product will be different from image.