A:Answer Yes, you can purchase a solar panel separately for your eufy S340 Outdoor Solar Powered 3K PTZ Security Camera. Make sure the panel is compatible with your device.
Regarding the batteries, it is generally not necessary to change the internal batteries of the camera frequently as they are rechargeable. However, if the battery performance significantly degrades over time, you may need to consider replacing them.
To charge the camera without the solar panel and without taking it down every two days, you may use an external power source, such as a USB charger, if the camera supports it. Ensure the power connection is waterproof if the camera is placed outdoors.