You will need to buy a USB-A to USB-C adapter to work with the 2025 R1300GS. I don't know if the 2024 R1300GS uses USB-A in the storage compartment, but the 2025 uses USB-C. You can find these adapters on Amazon.com.
This battery tender/reconditioner brought my battery back to life and is keeping it healthy during down-time. I have a Lithium battery, and am able to charge through my DIN socket. Love this thing and worth every penny!!!