E-POWO 400W Portable Solar Panel
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Portable & Foldable – 38 lbs, folded: 37.76 x 24.96 inches,suitcase-style design, easy to store & carry for RVs and off-road trips.
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Universal Charging – 7-in-1 adapter(DC5521/5525/7909/8028/DC35135, Anderson, XT60), compatible with most solar generators (37V output, check compatibility).
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Emergency Backup Power – Reliable solution for camping, cabins, and power outages.
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Durable & Waterproof – IP67 protection with ETFE coating for scratch, weather & corrosion resistance.
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Warranty & Support – Includes cables & manual, backed by 18-month warranty and 24/7 service.
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Why Choose Our Solar Panel
E-POWO 400W Solar Panel
Wherever the sun shines, the EP-003 is ready to power up!
With a high conversion efficiency of 23.5%, this 400W foldable solar panel works perfectly with solar generators to collect, convert, and store clean renewable energy. Whether for travel, camping, or daily backup use, the EP-003 ensures reliable solar power anytime, anywhere.
Use Scenarios
Where to Use It
Perfect for outdoor adventures, camping, hiking, and emergency power outages
Camping & Off-Grid Adventures
Set it up at camp to power your phone, flashlight, drone, or speaker.Lightweight and foldable—perfect for tent or ground setup.
3 Angle Adjustments
Use the stand to adjust the panel to the best sunlight angle setto 30°,45°, 60°
Supports Series and Parallel Connections
E-POWO
Include in the box
| Model | WHF-EP-003 |
| Peak Power | 400W+5% |
| Solar Cell Lamination | ETFE |
| Power Voltage | 37V |
| Power Current | 11A |
| Open Circuit Voltage | 46V |
| Short Circuit Current | 12A |
| Cell Type |
Monocrystalline Silicon
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| Cell Efficiency | 23.5% |
| Connector Type | MC4 |
| Solar Panel Weight | 34.32 lbs. (15.57 kg) |
| Adapter Cable |
DC5521,DC5525,DC7909,DC8020,Anderson, XT60, DC35135 Connectors
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| Dimensions (Folded) |
37.76 x24.96 x1.3 inch (959 x 634 x 33mm)
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| Dimensions (Unfolded) |
95.53 x37.76 x0.15 inch (2426.4 x959x3mm)
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| Waterproof Rating | IP67 |
| Operating Temperature |
14~149℉(-10~65 ℃)
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| Best Working Temperature | 77 ℉(25 °C) |
| Folding Number | 4 |
| Warranty | 18 Months |
Q1: What kind of battery can be charged by this solar panel?
A:1)Lithium-ion batteries
2)Sealed lead-acid batteries
3) Gel lead-acid batteries
4)Portable power station
Tip: To confirm whether the solar panel's compatibility with the third party devices, please consult with the seller.
Q2: Does the solar panel produce power when the sun isn't shining?
A: Yes, but please keep in mind that the amount of power the solar energysystem can generate depends upon sunlight The solar panels will produceslightly less energy when the weather is doudy, and no energy at night.
Q3: Can the solar panel work in winter?
A: Yes, but please keep in mind that the solar panel must be exposed tosunlight. Keep snow clear from the face of the solar panel. Colder temperatures increase voltage, which means the system is more efficientwhen it's cold & sunny meanwhile. However, there are fewer sun hoursduring the day in the winter, leading to an overall drop in production. Takesteps to converse energy to get the most out of the system in the winter.
Q4: How to decide the number of panels required to recharge?
A: 1)The output power of the solar panel should fit the recommended voltage. The max open circuit voltage must not exceed in the max input
voltage of power station.
2)The gross output current of the solar panel should be between the recommended working voltage.
Tip: When using multiple solar panels in series or parallel, please makesure that the accumulated maximum voltage and current of the solarpanels do not exceed in the maximum voltage and current of the powerstation.
Q5:ls it waterproof?
A: The main body ofthe solar panel is waterproof. Better Care, LongerLifespan.In order to maximize lifespan of the solar panel, please don't put itinto heavy rain or deeply soak the solar panel into water for long time. The junction box and connection points should not be immersed into water or anyother liquid.
Q6: How to clean the solar panel surface?
A: To clean the solar panel:
1) First remove loose dust / dirt with a soft brush.
2) Wipe the surface gently with a damp cloth to remove remaining dust or dirt.
3) Promptly remove bird droppings (guano) or other sticky substances to maintain optimal performance.
If you have any questions about this product, please let us know by filling out the form below, and we will contact you as soon as possible.
