Reolink camera/NVR models that support FTP uploading: 

All Reolink PoE cameras (except add-on cameras which can only work with Reolink NVRs), all plug-in WiFi cameras (except E1, E1 Pro, Lumus), Argus 3 Pro, Argus Eco Ultra, Reolink Duo 2(battery), Reolink Go Plus, Reolink Go Ultra and all Reolink NVRs.

Note: If you cannot find the FTP features for the above-mentioned battery-powered cameras, contact Reolink Support Team with a picture of the system information of your device.