eufyCam S3 Pro Solar Panel Not Charging? Here’s How to Fix It
Your eufyCam S3 Pro keeps its battery topped up with a solar panel. If the battery still drops, it is usually sunlight, the cable connection, a power-source setting or temperature.
What This Problem Means
If your eufyCam S3 Pro is showing this fault, working through the checks below in order resolves it in the large majority of cases. Each step is safe to try yourself and follows eufy’s official guidance.
Common Symptoms
- Charging shows 0 mAh in the app
- Battery drains despite solar
- Panel detected but not charging
- Battery drops on cloudy spells
Safe Checks You Can Try
1. Set the power source
In the eufy Security app, go to Camera Settings > Power Manager > Power Source and select Solar Panel. The camera won’t charge efficiently until this is set.
2. Get 2+ hours of direct sun
Position the panel for at least two hours of direct sunlight a day, angled to the sky and not shaded by walls, gutters or foliage.
3. Check the connection
Make sure the USB/charging cable is fully seated in both the panel and the camera (you may hear a click), and the waterproof seal is intact and undamaged.
4. Reduce heavy activity
If the camera sees a lot of motion it can use power faster than the panel replaces it. Lower the motion sensitivity and tighten Activity Zones.
5. Mind the temperature
eufy batteries only charge between 0°C and 45°C — in very cold or very hot spots charging pauses to protect the battery.
6. Update the firmware
Update the camera firmware in the app; eufy has shipped updates that improve solar-charging efficiency.
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When To Contact Support
If you have worked through every step and your eufyCam S3 Pro still has this problem, the hardware may need attention. Visit eufy support for further help or a replacement if it is in warranty.