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28W Foldable Solar Charger for Mobile Devices and Laptops

28W Foldable Solar Charger for Mobile Devices and Laptops

5   (17 Reviews)

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Strongrr 28W 18V Foldable Solar Charger with High Efficient Monocrystalline Solar Panels, Ultra Fast USB 2.1A Smart iCharging Technology for Laptop, Cell Phone, iPhone & More

You're hiking and you need to check your GPS, but the battery's dead. You have the chance to take a beautiful photograph of a landscape you discovered on your camping trip but your camera and your phone have so little power left. Your kids are bugging you to leave the picnic early because their tablets or their video game systems are nearly out of battery power.

In all these situations, you have an energy source that could solve your problems shining down on you, but sadly, you can't harness the power of the sun to charge the batteries on your devices.

Or can you?

With the Strongrr 28W 18V Foldable Solar Charger, it's possible to harness solar energy and put it to use to recharge virtually any battery-powered device safely and quickly. Using smart technology, this 28-watt charger senses what type of device you've plugged in and optimizes its energy output to recharge it as rapidly as possible without overloading, short circuiting or overcharging it.

The Strongrr 28W 18V Foldable Solar Charger was made specifically with active lifestyles in mind, so it's ready for all types of conditions and very easy to carry. The four-panel charger is the smallest of its power rating on the market today and folds up to just 9.25" x 11.375" x 1.75" in size, so you can store it anywhere. Its anti-scratch polyester canvas construction makes it rugged and durable, eliminating worries about wear and tear, no matter where you travel.

Don't cut your adventure short or forgo using your devices when you're in the great outdoors. Get the Strongrr 28W 18V Foldable Solar Charger and use the power of the sun to stay powered up! Order one today.

Product Features:

  • Powerful 28W Solar Panel Charger with dual-port technology easily Charges Phones, Tablets, and Laptops simultaneously
  • Use with solar generator to have a mobile AC outlet capable of powering just about anything which uses standard household plug
  • Compact Size for Great Portability (Closed 9.25” x 11.375” x 1.75” | Open: 47.25” x 11.375”) easily fits in backpack or laptop case
  • Industrial-strength mono-crystalline solar panel array provides most reliable power and polyester canvas ensure weather resistant durability, easily connect with multiple solar panels for even more power!
  • Includes Laptop Charging tips and user manual – everything you need to start harnessing the power of the sun, Covered by our Dynamic 18 Month Warranty


Solar recharger can detect what type of device you've plugged in so cell phones, tablets, laptops, gaming systems, GPS devices, digital cameras and other devices all recharge as safely and quickly as possible


Most compact 28watt charger on the market with just 4 high efficiency monocrystalline solar panels; Only measures 9.25" x 11.375" x 1.75" to fit into your backpack with ease.


Anti-scratch polyester canvas can stand up to demanding conditions. Polyester canvas outer protects the solar cell from moisture, so you can truly take this solar charger anywhere


Daisy chain up to three of these solar chargers for up to 84 Watts of charging capability; Use with the PB160 generator, and you can store power to recharge at night and in emergencies when there's no sun available

Package Contents:

  • 28 Watt Solar Charger
  • 10 Laptop Adapter Tips
  • 1 Carabineer
  • Instruction Manual

Additional Information

Weight 1 lbs
Capacity 5V
Voltage 5.6A
Color Black
Length 1
Width 1
Height 1
Instructions And Manual For Installation No Instructions...
Specifications - Mono-crystalline Solar Panel: 28 Watt - DC Output: 15-18V 1.55A Max - Chain: 15-18V 2A Max - Optimal Operating Temperature: -20° C ~50° C

Customer Reviews

Was very skeptical at first, but now I don’t leave home without it. Review by junjun
How do you rate this product?
I was skeptical at first if this solar generator power pack was any good and if it was going to last. It comes nicely packaged with instructions and the product is pretty solid looking and has a nice feel to it. I gave it a full charged over night and started testing to see how long it can power my devices. I was able to power my laptop running only on this power pack for about 6 hours, 3 hours each time and it still had some juice in it. What I really like about this product is I don’t need any adapter and just plug it directly into the a/c outlet like a wall outlet. It supports a grounded 3 prong port along with UK ports which make it really nice for my devices that require a 3 prong plug. I like how it comes with the built in a/c power inverter and a high capacity power pack all in a nice compact portable unit. I’ve tested this device with lights, small appliances and it powers everything like a champ. I bought a string of LED lights that I will keep next to this device just in case of power outage or on camping trips. It works great and powers the lights without any problem all night. The 2.1A USB port is great for charging my tablet and cell phone amazingly faster than my wall charger. The device does make a very dim sound when the fan is running but hadrly noticeable unless the room is quite. Overall it's a great power pack. The solar panels are not available until next month and looking forward to buying one to use with this device. Now I take this device with me on all of our family outings or stored in the center of the house in case of emergency and power outages with the led lights. (Posted on 3/2/2016)
Awesome. Love it Review by LBO Customer
How do you rate this product?
Works really well. The 3 pin outlet is fantastic.
If you are wondering regarding charge it can store w.r.t. devices, I used my Mac book air with starting battery 5% and used it plugged in to the battery for 5 hours with intensive use as was using chrome cast screen mirroring to TV which utilizes lot of processing power and at the end of it the Mac book battery was 100% and external battery was exhausted enough to not support the 3 pin switch but could still charge phone using USB.
(Posted on 12/15/2015)
Portable Power with a Punch Review by Donald J. Hall
How do you rate this product?
Compared to other kits this kit has the best portability for the amount of power it produces and can put out. Weighing in at about 7 or 8 lbs its much easier to carry around that the other kits I’ve seen around. Does everything I need it to do while I am off the grid. The standard ac output (wall plug) is great and usually not seen on kits this small. There’s no question in my mind this is the best value for a portable solar kit on the market. (Posted on 11/21/2015)
Charger you can count on Review by Bruce J. Ferebee
How do you rate this product?
I am the type of person who makes sure that when disaster comes, my family and I will be totally prepared. This device is an answered prayer. Gone are the days of those bulky solar panels.. This is the real thing! Good job. (Posted on 10/14/2015)
High Quality Product !! Review by Mark Harris
How do you rate this product?
I am very impressed with the quality, it seems very durable, like it will last a long time. It charges my phone just like the wall outlet. (Posted on 9/30/2015)
I'm satisfied Review by Adam Sorenson
How do you rate this product?
Seems well made. Charges well in full sun. It's a solar charger people it needs the sun to work. Don't buy this to charge your phone while spelunking and complain that it doesn't work. It's not the charger it's you! (Posted on 9/12/2015)
Works Review by Sadia
How do you rate this product?
It worked fine in bright sun, does what it is supposed to do so no complaints from me about it. (Posted on 9/5/2015)
Amazing charger Review by James J. Sharp
How do you rate this product?
This charger is really great. I brought it me when I took my girlfriend for an overnight camping. She was really impressed. (Posted on 8/19/2015)
just what I wanted! Review by Johnny
How do you rate this product?
It charges every USB device I own in short order! I use this panel on a long road trip. I spent a week slowly making my way south from North Seattle to San Diego, and this panel kept my phone, mini jam box, and battery bank topped off. This panel is going with me to Half Dome this summer, and I am sure it will provide the same awesome charging along the way! Nice work LB1, and great price! (Posted on 8/2/2015)
Addicted to solar now Review by Toby
How do you rate this product?
Pretty awesome gadget. I set it up on the dashboard while I drive and charge my electronics and my battery stick incase they die. Lets me charge my laptop with the car and my nav with the solar. I think I am addicted to solar energy. (Posted on 7/25/2015)
Absolutely does what it should. Review by Christopher Berns
How do you rate this product?
Absolutely does what it should. I took it out to the field in the desert at White Sands and it kept my phone and NewTrent 14000maH battery topped off. Do take the plastic off of the panels (it looks sewn in to the seams but you can pull it out pretty neatly) when you get it, I didn't until the second week and it made a difference. (Posted on 4/17/2015)
I love this charger! It rocks. Review by Ozz
How do you rate this product?
I love this charger! It rocks. I have had it about a week now and have tested it under numerous conditions. Under direct sunlight, this is every bit as fast as charging with an outlet. (Posted on 4/17/2015)
Can't Get Any Better Review by Mike K.
How do you rate this product?
This is a really high quality battery pack. This generator eonnects to LB1 Solar Charger and allows me to camp with free power or have something in case of real emergency. I would recommend everyone to get a combination of these two in case of the a bad day. (Posted on 4/8/2015)
I absolutely love the chainable solar panel Review by wayne
How do you rate this product?
I absolutely love the chainable solar panel.almost identical to goal Zero. the battery and inverter with everything else is absolutely perfect for backpacking have not found a better solar generator for backpacking (Posted on 4/4/2015)
I've used this a few times already to charge up ... Review by Tenn
How do you rate this product?
I've used this a few times already to charge up mobiles and tablets. While it will take longer than an electrical outlet, it is a very workable backup in the event of loss of power. When in storage, it folds into a compact bundle. (Posted on 12/17/2014)
Very very useful. Review by Fishingcustomer
How do you rate this product?
Charged two large battery packs totaling 30,000 mah while I was on a mission trip in the Amazon river. Ended up charging probably 7-8 people's cell phones throughout my trip. Very very useful. (Posted on 6/26/2014)
I like it. It is lite and it holds a ... Review by Terry
How do you rate this product?
I like it . It is lite and it holds a lot of power. I will purchase more soon. I think that every home owner should have one or two (Posted on 12/10/2013)

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