BigBlue 5V 28W Solar Charger with Digital Ammeter, Waterproof Foldable Solar Panels with Dual USB Ports Compatible with iPhone Xs/XS Max/XR/X/8/7S, iPad Air 2, Galaxy S8/S7/S6/Edge, LG, Nexus etc.


30 in stock



BigBlue 5V 28W Solar Charger with Digital Ammeter, Waterproof Foldable Solar Panels with Dual USB Ports Compatible with iPhone Xs/XS Max/XR/X/8/7S, iPad Air 2, Galaxy S8/S7/S6/Edge, LG, Nexus etc.

  • Built-in Ammeter: The amount of Amps of our 28W solar charger depends on your devices, light intensity and cable used. If your device has an input current of 1A (such as the iPhone), the amount of ammeter will show between 0.8A and 1A in theory.
  • Exclusive SmartIC Technology: With the built-in intelligence chip, our solar phone charger can detects your device to deliver its fastest possible charge speed and assure charging stably (dual USB ports up to 4A max overall). SunPower Solar Panels with high solar conversion efficiency by up to 21.5% – 23.5% is great for any outdoor activities such as camping, climbing, fishing etc.
  • Special PET Polymer Surface: Industrial-strength PET polymer fabric protects your solar panel and your devices from occasional rain or wet fog. IPX4 waterproof level, but the USB ports and ammeter are not water-resistant, so keep them away from water while charging.
  • Easy To Carry: With compact size (11.1 × 6.3× 1.3in folded or 33.1 × 11.1× 0.2in opened) and lightweight (21.0 oz) design, dual-port power applys to all the Android devices and some of the DSLRs by connecting the cable attached. You will need an extra cable for other devices.
  • Package & Support: 24-month worry free and friendly customer service. Note: Please don’t place the device you are charging inside the pocket attached in order to avoid overheating then damage your devices


– 28W refers to the power of the solar panel, which is not equal to the actual output power of the USB port, because there will be some loss in order to maintain voltage stability and safety of equipment during the charging.

The power of the solar panel:

Our product has 4 solar panels, each piece is 7w; so the power is 4*7w=28W.

The actual output power means:

2 USB ports is respectively up to 5V/2.4A max and 5V/2.4A max, total output is 5V/4A Max

The total output of two output ports is 5V*4A=20W

– Our product is compatible with Apple device, pls use the original Apple cable.

– Any cloud cover arrives it may knock the value of ammeter down. We suggest you to replug the device and reopen the solar panels to reset the power controlle.

The Perfect Companion for Adventures

BigBlue 28W Solar Charger with Digital Ammeter

– Built-in Ammeter and Pocket with Zip, keep your devices safe and clean, 21.5-23.5% Solar Efficiency.

– Lightweight, easy to carry. When folded, it has the same size and thickness as a magazine.

– Designed specifically for all those people wit passion for trekking, camping, hiking, picnics, fishing, boat, etc.

– Compatible with most of USB rechargeable devices(5V/2.4A Max), include the Apple device, Note: please use the orginal cable.

– The package includes 4 hooks, allowing you to hook your solar panel everywhere (trees, backpacks, curtains, etc.)

– Waterproof and Internal Chip: Every time he loses contact with sunlight for a short period of time (dense forest, clouds, temporal passenger) will stop charging until he comes back into contact with the sunrays, without damaging your connected device.


– Please remember that Apple devices has an inner chip that stop the charge of the phone whenever its inner temperature get too hot.

– To prevent this kind of situations while charging the phone under the sun, we suggest to use a longer cable and keep the phone in a shadow area.

– Our solar panel isn’t suitable for small current charging products (standard charging current is below 200mA), which is prone to continuous shutdown and restart.



– USB Output1 : Max 5V/2.4A

– USB Output2 : Max 5V/2.4A

– Output : Max 5V/4A

– Actual solar panel output power : 28W Total

– Actual maximum USB output power20W

– Water Resistant : IPX5

– Ambient temperature : 70°C to -10°C/158 to 14

– Weight 622g/21.94oz

Package Contents

– Solar Panel*1

– Buckles*4

– 60cm Length Micro USB*1

– Manual*1

  • Brand: BigBlue
  • Manufacturer: BigBlue
  • Part Number: B401E-AU
  • Compatible Devices: Smartphones, Tablets
  • Voltage: 5 Volts
  • Batteries Included: No
  • Batteries Required: No
  • Number of Ports: 2
  • Product Dimensions: 28.5 x 16 x 3.4 cm
  • Item Weight: 595 g
  • Manufacturer reference: B401E-AU
  • Is Discontinued By Manufacturer: No

Additional information







Part Number


Compatible Devices

Smartphones, Tablets


5 Volts

Batteries Included


Batteries Required


Number of Ports


Product Dimensions

28.5 x 16 x 3.4 cm

Item Weight

595 g

Manufacturer reference


Is Discontinued By Manufacturer


Date First Available

6 March 2018