Bosch 18V Battery to Ryobi ONE+ Tool Adapter | tool, Robert Bosch GmbH, adapter | Don't think you can use your 18V Bosch Professional battery with a Ryobi One+ tool? The Badaptor
Amazon.com: X-Adapter 1x Adapter for Ryobi 18v Tools Works On Bosch 18v Blue Professional Batteries (Not 18v PBA All Battery)- Adapter Only, Black (BS-RY18) : Tools & Home Improvement
Bosch Blue 18v Battery Adaptor to Ryobi One Tools - Etsy
Bosch Battery Adapter to Ryobi – Power Tools Adapters