US Patent 12117869 Portable electronic device case accessory system

Systems involve implementations such as an electronic-controller-implemented method for use with an accessory assembly couplable with a device assembly and a payment card reader assembly, the method including determining activation status of the accessory assembly; and controlling charging status of the device assembly based at least in part on the activation status of the accessory assembly. Other aspects are described in the claims, drawings, and text forming a part of the present disclosure.