- Not enough direct sunlight hours
- Panel shaded or facing wrong way
- Panel dirty
Problem Description
Your eufy SoloCam S340 has an integrated solar panel but the battery keeps draining. The camera is supposed to be maintenance-free with solar power but you are still getting low battery warnings. The solar panel does not seem to generate enough power to keep the camera charged.
Why This Happens in Real Homes
The SoloCam S340's integrated solar panel is designed to maintain the battery from a few hours of daily direct sun, not to rapidly recharge it — so "not charging" often means the panel isn't getting enough direct light, or the camera's activity (pan/tilt tracking, frequent triggers) is draining faster than the trickle can replace. It's a busy camera, so its solar budget is tighter.
Aim the panel at true direct sun for several hours a day, unshaded and clean, and if the battery is low, charge it fully over USB first so solar only has to maintain it. Reduce excessive triggers and tracking that outpace the panel, and expect less in winter's short, weak sun. Solar keeps a well-placed camera topped up; it won't fast-charge a drained one.
Symptoms
- S340 solar not charging
- Battery drops despite sun
- No charging shown
- Charge won't hold
- Drains faster than solar recovers
- Panel seems ineffective
- Charging slow
- Won't reach full via solar
Recognize these? Here's what usually causes it.
Common Causes
- Not enough direct sunlight hours
- Panel shaded or facing wrong way
- Panel dirty
- High activity outpacing the trickle
- Cold weather reducing charging/battery
- Expecting fast charging (solar trickles)
- Firmware affecting power reporting
- Very low battery needing a USB charge first
Most fixes happen in the first 3 steps.
Never use harsh chemicals or abrasive materials on the solar panel. Scratches permanently reduce efficiency.
Tools & Requirements
These tools will help you complete this fix.
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Step-by-Step Solution
Check Sun Exposure
The S340 solar panel needs direct sunlight not shade or indirect light. Observe your camera location throughout the day. Does direct sunlight hit the panel for at least 3-4 hours? Morning or evening sun is weaker than midday. Identify any shade sources blocking sunlight.
Optimize Panel Direction
In the northern hemisphere solar panels should face south. In the southern hemisphere face north. The S340 integrated panel means repositioning the entire camera. Find a mounting location where the camera view works and the panel faces the best direction.
Clean Solar Panel Monthly
Dust pollen and bird droppings accumulate on the panel reducing efficiency. Clean the panel surface monthly with a soft damp cloth. After storms check for debris. Even light dust can reduce charging by 10-20 percent.

Needed for this step
WHOOSH! Pro 16.9 fl oz Refillable TV Screen Cle...
This helps complete the fix you are currently reading.
$19.99Reduce Power Consumption
If the camera uses more power than solar provides the battery will drain. Reduce motion sensitivity to trigger fewer recordings. Lower video quality from 4K to 2K. Disable the spotlight or reduce its duration. Disable unnecessary features like night vision extension.
Accept Seasonal Limitations
Winter has shorter days and weaker sun angle. Solar charging may not keep up from November through February in northern latitudes. Plan to manually charge the camera once or twice during winter months. This is normal for solar-powered cameras in high latitudes.
Quick Solutions
Still having issues? This is usually the deeper cause below.
If drain continues after replacing batteries, check the event history — a stuck-open sensor or rapid polling loop burns through batteries in days.
The eufy app shows solar charging status. Check this to verify the panel is generating power and diagnose if charging is happening but insufficient.
Live view problems that start suddenly usually trace back to an upload speed drop — the camera itself is fine, the bandwidth path to the cloud isn't.
- Not enough direct sunlight hours
- Panel shaded or facing wrong way
- Panel dirty
- High activity outpacing the trickle
- Cold weather reducing charging/battery
Before you go — try one of these (they fix most cases).
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Official Manufacturer Manual
eufy Security provides official product documentation through their online manual rather than downloadable PDF. Access setup guides, troubleshooting steps, and product specifications for your eufy SoloCam S340.
Source: eufy.com
Need More Help? eufy Security Support
Note: The contact information below connects you directly to eufy Security's official customer support team, not Trunetto. They can help with warranty claims, device replacements, and advanced technical issues.
How Does eufy Security Compare?
Before replacing your eufy Security device, see how it stacks up against alternatives in our full comparison guides.
Accessories owners commonly pair with eufy SoloCam S340.
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