• Free Shipping on Orders Over $99
  • 30-Day Returns
  • Secure Checkout

GridGuard 400W Portable Folding Solar Panel, ETFE Waterproof

$76.99

In Stock

  • 30-Day ReturnsHassle Free
  • 2-Year WarrantyOn Every Item

30-day returns and damage protection Return most items within 30 days. If your order arrives damaged, we will replace it or refund you. Free return pickup on bulky and heavy items.

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay

Product details

2-Year GridGuardPlus Warranty included. Every item we sell is backed by our two-year warranty. Questions? Call 1-800-680-4080.

A 400W portable folding solar panel for higher-output off-grid and backup charging. An ETFE coating and IP68 waterproof rating are made for outdoor conditions, and an MC4 output connects to compatible power stations and generators.

Solar panels turn sunlight into usable power, so you can recharge without the grid. Pair the panel with a compatible battery, power station or device to keep your gear running wherever the sun reaches.

Key specs

  • 400W solar output (panel rated capacity, not a battery)
  • ETFE coating, IP68 waterproof rated
  • MC4 output
  • Folding design for transport

Best for

  • Home backup charging
  • RV and off-grid living
  • Charging larger power stations

What to expect from the sun

On a clear day with about four hours of strong sunlight, a 400W panel typically yields roughly 1,200Wh of usable energy after real-world losses. Cloud, haze, shade and a poor angle will reduce that.

Good to know

A solar panel only produces power while it is in sunlight, and its rated wattage is what it can deliver under ideal conditions, so real-world output will usually be lower. Angle the panel toward the sun and keep it free of shade. Before you order, make sure the panel's connector and voltage are compatible with the power station or battery you plan to charge.

Setup and care

  • Unfold on a flat, stable surface angled toward the sun
  • Keep the panel clean and free of shade
  • Connect to a compatible device or controller before leaving it in the sun
  • Fold and store dry after use

Frequently asked questions

Does it work on cloudy days?
Yes, but at much lower output. Direct sun at a good angle gives the best results.

Will it work with my power station or battery?
It depends on the connector and voltage. Send us your model before you order and we will confirm, or call 1-800-680-4080.

How should I store and clean it?
Fold it, keep it dry and wipe the surface with a soft damp cloth. Do not use abrasive cleaners.

Can I leave it outside?
Use it outdoors while the sun is out, but bring it in during storms and store it dry for the best life.

Buy with confidence from GridGuardPlus

  • 2-year GridGuardPlus warranty on every item
  • Contact support for return instructions; shipping arrangements depend on the reason for return and applicable policy
  • If your order arrives damaged, contact support promptly so we can review and resolve the issue
  • 30-day returns
  • Real people on the phone: 1-800-680-4080, 875 Industrial Hwy, Unit 8, Cinnaminson, NJ 08077

Explore related power and solar products

Compare portable power station options and the 60W foldable solar panel kit. Products are not necessarily compatible: check charging voltage, connector type and input limits before purchasing equipment together.

WHAT THIS SOLAR PANEL IS FOR

The heavy hitter: 400W, ETFE-coated and IP68 waterproof

Larger power stations need more sun to refill. This 400W folding panel delivers roughly 1,200Wh from a good day, which is a large share of a 1,000Wh battery. Its ETFE coating and IP68 waterproof rating are made for rough outdoor conditions, and its MC4 output connects to compatible power stations and generators.

Right for you if…

  • You charge a larger power station for home backup or off-grid living
  • You want a rugged, waterproof panel
  • You want to recharge in a day or two, not several

Look at something else if…

  • You want a lightweight panel for backpacking
  • You need a fixed roof installation

What one clear day of sun gives you

A 400W panel with about four hours of strong sun typically yields roughly 1200Wh after real-world losses.

  • Laptop (about 60W)about 20.0 hours
  • Small fan (about 40W)about 30.0 hours
  • Wi-Fi router (about 20W)about 60.0 hours
  • Small fridge (about 60W while running)about 20.0 hours

Rough estimates using typical device wattages. Real results vary with the device, temperature, sunlight and battery age.

If you pair it with one of these power stations

Hours of strong sun to refill from empty, if the connector and solar input are compatible (about 75% of rated watts):

Good to know about this one

MC4 is a common connector, but power stations often use a different one. You may need an adapter, so confirm compatibility with your station before you order.

Plan before you need it

Solar works on the sun's schedule. Winter days are shorter and the sun sits lower, so panels produce less than in summer. If solar is part of your outage or off-grid plan, order the panels together with the battery or power station they will charge, and confirm the connector fits before the weather turns. Stock note: only 4 currently in stock.

If this is not quite the right fit

Not sure this is the right size for you? Tell us what you want to power and for how long, and we will check it against this product before you order. Contact us or call 1-800-680-4080.