A PoE injector or switch can power Reolink cameras which then enables you to use a single network cable for both video and power transmission.
GSMzone Sheffield
reolink QSG 1080p Outdoor Battery Camera User Guide
reolink QSG 1080p Outdoor Battery Camera User Guide
PoE Network Switches
Reolink Injector for PoE Cameras : r/reolinkcam
GSMzone Sheffield
reolink QSG 1080p Outdoor Battery Camera User Guide
Budget Friendly Surveillance IP Camera Setup: Synology, Reolink Cameras, and Netgear POE switches.
reolink QSG 1080p Outdoor Battery Camera User Guide
reolink QSG 1080p Outdoor Battery Camera User Guide
How To Set Up PoE Relink NVR With Monitor Connected - GSMzone
Efficient Transmission: This PoE injector is the perfect solution to expand your network by converting non-PoE Gigabit ports into PoE+ Gigabit ports.
Reolink Gigabit PoE Injector, Convert Non-PoE to PoE, Supplies PoE+ (30W) or PoE (15.4W), Distance up to 100m, Plug & Play, Suitable for Reolink PoE
Efficient Transmission: This PoE injector is the perfect solution to expand your network by converting non-PoE Gigabit ports into PoE+ Gigabit ports.
Reolink Gigabit PoE Injector, Convert Non-PoE to PoE, Supplies PoE+ (30W) or PoE (15.4W), Distance up to 100m, Plug & Play, Suitable for Reolink PoE