Solar Panels Charger with Digital Ammeter, BigBlue 28W SunPower Camping Solar Panel, Dual USB(5V/4A Overall), IPX4 Waterproof, Compatible with iPhone 13/11/Xs/X/8/7, iPad, Samsung Galaxy, Google Pixel
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- 【Built-in Digital Ammeter】BigBlue 28w solar panel charger can measure the current real-time value, convenient to your use. Note that the value of actual outputs depends on your connected devices, sunlight intensity and the used cable. If your device has an limited input current of 1A (such as the iPhone), the amount of ammeter will show between 0.8A and 1A in theory.
- 【Higher Solar Conversion Efficiency】SunPower Solar Panels is the most durable panels at present, whose conversion efficiency can reach 24%. If clouds blocking the sun, this portable solar charger can detect intelligently the sunlight and restart to charge your electronic in 30s when there are enough sunlight. Foldable design and 4 carabiners is easy to carry for any outdoor activities such as camping trip, climbing, fishing etc..
- 【Exclusive Smart IC Technology】With the built-in intelligent chip, our solar phone charger detects your device then deliver its fastest possible charging speed( Single maximum output up to 5V/2.4A, dual maximum outputs is up to 5V/4A). Dual-port applys to all the 5V Android devices and 5V powered apple devices. Note: We don't provide the lightning cable for Apple devices.
- 【Special PET Polymer Surface】Industrial-strength PET polymer fabric and IPX4 waterproof panels protect your solar phone charger from occasional rain or wet fog, but the USB ports and ammeter are not water-resistant. The zipped pocket keeps your devices safe and clean while camping. Please don't place your cellphones inside the pocket while charging for fear of overheating and damage.
- 【Easy to Use & Friendly Customer Support】Please unfold four solar panels in direct sunlight in the open air ( No cloud and no shadow ), then connect your device to the usb-A port with your certificated cable. What You Get: 1x 28W Solar Charger, 1x USB-A to USB-C cable, 4x Carabiners and our friendly customer service.
Product Description


BigBlue 28W SUNPOWER Solar Charger with Digital Ammeter
- Portable and folding solar charger, designed specifically for those people with passion for trekking, camping, hiking, picnics, fishing, boat, etc.;
- Built-in Ammeter and zipped pocket, this 28w folding solar charger keeps your devices safe and convenient to your use;
- This solar charger with 2 USB-A outputs, compatible with most of 5V USB rechargeable devices, include the Apple and android cellphones, tablets, power bank, LED flashlight etc..
Model | B401E |
Folding Size | 11.1x 6.3x 1.3in |
Unfolded Size | 33.1x 11.1x 0.2in |
Net Weight | 1.5lbs |
Solar Panel | SunPower |
Operating Temperature | 14 ℉-158℉ |
USB-A Output | 2* 5V/2.4A Max, 5V/4.0A Max in Total |
Package Included | 1x 28W Solar Charger with Digital Ammeter, 1x USB-A to USB-C Cable, 4x Carabiners |


If cloud or shade passes, does solar charger automatically recover or does it stop charging?
Yes, this 28w solar panel charger can automatically recover to charge your phone
What does the red LED light mean?
The red LED light will go on when the solar panels works normally; It will flicker when there are over-current or short circuit.
This solar charger can charge Androids and Apple cellphones and power station?
BigBlue 28w solar panel charger can charge most Androids and Apple cellphones, but our solar phone charger doesn't include the lightning cable for iPhone or iPad. This product comes with 2 5V USB-A output, so it can't charge power station.
Why the real output is different from the power claimed?
This product has 4 piece panel, each is 7w, so the power is 4*7w=28W; Theoretical output is 5V/2.4A Max for each port, 5V/4.0A Max in total, the total theoretical power is 5V*4.A=20W Max. But there are loss in the solar energy conversion process.
BigBlue Solar Panel Charger Family
![]() 28W Solar Charger | ![]() 36W Solar Panel | ![]() 100W Solar Panel | ![]() 100W Solar Panel | |
Folding Size | 11.1x 6.3x 1.3in | 14x7.7x1.4in | 16.5x14.3 x1.9in | 24.9X21.3X0.7in |
Net Weight | 1.5lbs | 3.64lbs | 8.8lbs | 8.2lbs |
No. of Output Ports | 2* 5V/2.4A USB-A | 1 DC+ 1 20W USB-C+ 1 USB-A | 1 DC+1 45W USB-C+2 USB-A | 1 DC Output with SAE Connector |
Solar Panel Type | SunPower Solar Panel | Monocrystalline Panels | Monocrystalline Panels | Monocrystalline Panels |
Max DC Output Powe r | N/A | 20V/1.8A | 18V/5.5A | 19.8V/5.05A |