BigBlue SolarPowa 28 Solar Charger(with no ammeter)


Regular price
Price: $65.99
Regular price
List Price: $69.99
Sale price
Price: $65.99
You save: $4.00 (6%)
View Cart


BigBlue SolarPowa 28 (with no ammeter)
Solar Charger | SUNPOWER Solar Cells | 3 x USB-Type A Connectors

The SolarPowa solar charger series (SolarPowa 28, SolarPowa 14) continues to harness power for your road trip, sailing adventure, beach gateway, or camping trip with an energy conversion of up to 24% into free energy under enough sunlight; while most solar chargers in the market are merely 15% efficient.

Sun Power Solar Charger

Receives worldwide acclaim and has been awarded top marks from various independent reviewers and magazine publishers.

Trademark of Trust

Special coated and high-density 900-denier polyester Oxford fabric to achieve the utmost durability with water resistance and scratch resistance.

Versatile Charging Options

Equipped with three upgraded USB (Type A) ports. Each maximum output is 5V/2.4A and the total maximum current is at 5V/4.8A. BigBlue SolarPowa 28 (with no ammeter) solar charger allows you to harness the sun's energy to charge multiple devices at once.

Coveted Charging Caliber

Embedded smart charge technology discerns your device's requirements and delivers the perfect charging speed. Rest assured with 100% safe charging, thanks to built-in protection against overcharging, overheating, and short circuits.

Fold-able Thus Portable

This folded-panel design offers plenty of surface area to harvest the sun's power, in addition to a zippered pocket (encased junction box with ammeter display) at the rear surface keeping the connected devices secure while they are charged.



Model: SolarPowa 28 (with no ammeter)
Rated Power: 28W
USB Output Ports: 5V/2.4A, 3 x USB: 5V/4.8A Total (Max)


Net Weight: 1.41lbs
Solar Cell Type: Monocrystalline solar (Sun Power)
Folded Size (L x W x H): 11.1 x 6.3 x 1.3 inches
Unfolded Size (L x W x H): 11.1 x 33.1 x .2 inches


1. Why the connected device cannot be charged?

Please check if your device is well connected to the solar charger or if the connecting cable works normally. Re-plug the cable or try with another cable.

2. Why is the connected device charging slow?

Ensure that the input current and voltage of the connected device are within the accepted range. The amount of sunlight, weather, or shady may cause fluctuations in the current output that prevent your devices from charging. In this event, try placing the solar charger in more direct sunlight or wait for the weather to clear. In order to get the maximum solar energy, please adjust the solar charger toward the sun.

3. What is the difference between the nominal / rated output from the actual output of the solar charger?

The maximum nominal / rated output of the SolarPowa 14 solar charger is rated based on the Standard Test Conditions (STC) – the industry-wide standard for the conditions under which a solar panel is tested. The test conditions are defined as irradiation 1000 W/m², temperature 77°F, and air mass 1.5.

The nominal / rated power refers to the power of the solar charger, which is not equal to the actual output of the solar charger. In fact, the actual power is less than the nominal / rated power, since there will be some power loss in the form of heat during the solar energy conversion, and a few other environmental factors such as the weather conditions, seasonal changes, and location.


24 Months


SolarPowa 28 Solar Charger (with no ammeter)


Order Confirmation

As soon as you place your order, you will receive an order confirmation e-mail. This means that we have received your order in our system and pre-authorized your choice of payment for the purchase.

If your item happens to be on back-order or unavailable, we will void the pre-authorization and reach out to you via e-mail. If your item(s) are available for immediate shipment (within 5 business days), we will process the charges and submit the order for shipment.

Order Shipment

Your order will ship within 5 business days. We will send you tracking information within 24 hours of your order leaving the warehouse to the e-mail address you provided when checking out. You should receive your item(s) between 5-10 business days.

We offer free shipping on all orders within the contiguous United States via FED EX, UPS, DHL and USPS.

No shipping outside the contiguous United States

If you have any questions feel free to give us a call or email us at 


  • Image of  topreasons Fast, Free Shipping
  • Image of  topreasons Easy Returns
  • Image of  topreasons Product Guarantees
  • Image of  topreasons Top Customer Service
  • Image of  topreasons Secure Checkout

Customer Reviews

Based on 1 review
Joe Black
Great charging solution for backpacks

The BigBlue solar charger worked well for me out on Colorado Trail for ten days. It works great in direct sunlight. I tested it when I got back home and it charged my iPhone SE from 16% to 75% in 70 minutes. It's relatively compact and clips onto the loops of my backpack easily. Make sure whatever device you are charging is kept in a cool area. I noticed my iPhone wouldn't allow charging when it was too hot.