They told me Ryobi tools have interchangeable batteries, when I try they don't match. What am I doing wrong?

Ryobi encourages users to take advantage of the interchangeable batteries that their ONE+ system allows for when using their 18V tools. However; it is imperative to comprehend the differences between standard 18V batteries and the more recent HP batteries.

Check the battery you're attempting to use first. Examine the battery pack for any additional pins. It is an ordinary 18V battery and will not work with your HP tool, which needs the designated HP battery for best results if it does not have these extra pins.

Check the tool you have. There should be obvious markings on your Ryobi One+ HP tool that identify it as an HP model. This differentiation guarantees compatibility with HP batteries, enabling you to take advantage of their increased power capacities.

Don't hesitate to provide additional details or insights in the comments or file your complaint.