Can a 4g camera be used without charging?

4G cameras can be used without charging, because "charging" is not a necessary option for monitoring cameras. The surveillance camera can be used normally as long as there is network and electricity, and there is no need for follow-up fees. But if you need cloud storage or some value-added services, such as online duty, telephone reminder, abnormality check, etc. , you still need to open additional services and pay. Camera is a kind of video input device, which is often used to collect and transmit video and audio signals. Cameras are widely used in video conferencing, telemedicine, real-time monitoring and other fields. They can capture still pictures and dynamic videos, and are composed of lens, image sensor, signal processor and interface circuit. There are many kinds of cameras, including ordinary cameras, network cameras, thermal imaging cameras, motion cameras and so on. Each type of camera has its specific application field.