---
product_id: 48850968
title: "BigBlue 28W Solar Charger Foldable with Digital Ammeter"
brand: "bigblue"
price: "841 zł"
currency: PLN
in_stock: true
reviews_count: 13
category: "Big Blue"
url: https://www.desertcart.pl/products/48850968-bigblue-28w-solar-charger-foldable-with-digital-ammeter
store_origin: PL
region: Poland
---

# 2.4A max charging current 28W solar power output 25.4% solar conversion efficiency BigBlue 28W Solar Charger Foldable with Digital Ammeter

**Brand:** bigblue
**Price:** 841 zł
**Availability:** ✅ In Stock

## Summary

> ☀️ Charge Smarter, Adventure Harder!

## Quick Answers

- **What is this?** BigBlue 28W Solar Charger Foldable with Digital Ammeter by bigblue
- **How much does it cost?** 841 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/48850968-bigblue-28w-solar-charger-foldable-with-digital-ammeter)

## Best For

- bigblue enthusiasts

## Why This Product

- Trusted bigblue brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact & Durable Design:** Magazine-sized foldable panel with stainless steel eyelets and IP44 water resistance for rugged outdoor use without bulk.
- • **Smart Charging, No Guesswork:** Built-in digital ammeter and Smart IC tech optimize charging speed for your devices, ensuring efficient power delivery every time.
- • **Stay Connected Rain or Shine:** IP44-rated waterproofing and auto-restart function keep your devices charged even in variable weather conditions.
- • **Universal Device Compatibility:** Dual USB-A and USB-C ports support most smartphones, tablets, cameras, and power banks for versatile connectivity.
- • **Power Your Adventures Seamlessly:** 28W foldable solar panel delivers reliable energy on the go, perfect for camping, hiking, and remote work.

## Overview

The BigBlue 28W Solar Charger is a foldable, portable solar panel featuring high-efficiency N-type monocrystalline cells with up to 25.4% conversion rate. It includes a digital ammeter for real-time charging data and Smart IC technology to optimize power output via dual USB-A and USB-C ports (max 2.4A). Compact and lightweight, it’s designed for outdoor enthusiasts needing reliable, eco-friendly power with IP44 water resistance and easy attachment options.

## Description

Product Description bigblue 28w solar charger 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, 22.5-25,4% Solar Efficiency. Lightweight, easy to carry. When folded, it has the same size and thickness as a magazine. Designed specifically for those people with passion for trekking, camping, hiking, picnics, fishing, boat, etc. This solar charger can store electricity? Our solar charger can't store the electricity, pls unfold four solar panels in the direct sunlight and then connect with your device. This solar charger can store electricity? Our solar charger can't store the electricity, pls unfold four solar panels in the direct sunlight and then connect with your device. What's the auto-restart function? Any cloud or covering arrives may knock the value of output down, but this folding solar panel charger can automatically recover to normal charging speed when there are enough sunlight. What's the auto-restart function? Any cloud or covering arrives may knock the value of output down, but this folding solar panel charger can automatically recover to normal charging speed when there are enough sunlight. This solar charger can use for Androids and Apple cellphones? Compatible with most of USB rechargeable devices, include the Apple device(Except iPad Pro). Our solar panel isn't suitable for small current charging products (standard charging current is below 200mA), which will be continuous shutdown and restart. This solar charger can use for Androids and Apple cellphones? Compatible with most of USB rechargeable devices, include the Apple device(Except iPad Pro). Our solar panel isn't suitable for small current charging products (standard charging current is below 200mA), which will be continuous shutdown and restart. Why the real output is different from the power claimed? 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. Why the real output is different from the power claimed? 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. BigBlue Portable Solar Charger Series 28W Solar Charger 14W Solar Phone Charger 28W Solar Charger-3USB 25W Solar Charger 21W Solar Charger 30W Solar Charger 60W Solar Charger

Review: Capable solar charger (but not 28W) - The bad news: the highest charging current I've had in ideal conditions (Scotland, midsummer, midday sun, clear skies) is only 1.7/1.8A. A long way short of the maximum suggested by the manufacturers. The good news: 1.7A is an extremely useful charging current. The Big Blue can also pump out some solid current on overcast days - close to 1A with light cloud. Obviously really heavy cloud will drop the output to zero. In mixed weather conditions I found it more than capable of keeping phone, headtorch batteries etc charged on an extended camping trip. My phone gets used pretty heavily - photography, news & weather if I can get online, Kindle books etc - so this was a solid performance. I also used a couple of 18650 batteries and a Nitecore F1 charger as a lightweight buffer for the rainy days when I couldn't deploy the panel. On sunny days there's charge to spare to fill up the batteries. The 3 stars for water resistance is just my best guess. The unit seems to cope OK with a smattering of rain but I wouldn't want to get it really soaked. The panels seem to have a waterproof coating but I doubt very much if the main electronics, under the display, are waterproof. Why does water resistance even matter for a solar panel? In showery conditions the Big Blue can gather a lot of useful charge in the bright spells. A fully-waterproof unit could be left out unattended while you get on with something else. That's the bottom line for portable chargers: do they fit seamlessly with daily life in the field or does it feel like device-charging is starting to dominate your time? The Big Blue performs well enough not to be a nuisance. The display is great - indispensable really. If you want to learn how best to use the panel you need to see how well it works in different conditions. I measured the weight at 610g on scales of unknown accuracy. All in all, I like it. May not perform as well as claimed (I didn't really expect it would) but it does perform well.
Review: It performs great for a solar charger and does exactly what I wanted. - I've had this a month now and have tested it in all sorts of weather. I have to say, although I was worried it wouldn't be too great with the British weather, it has surprised me... a lot! I've provided two examples below of my experiences where the charger was on the dash of my car (on sunny days I folded the output screen under the panels with the windows ajar). I also only charged one item at a time. Very cloudy/rainy day with no direct sunlight: When it first arrived in March, the weather was miserable but I was still able to get a reading of 0.2 to 0.4 amps. So I plugged in an iPhone and it began to charge! However, rather than leave my phone in the car, I plugged in my small power bank and left the panels on the dash of my car. I thought that the windscreen would filter out some of the required rays but I had the same reading in and out of the car. Anyway, I came back to the car that evening after it rained all day and the sun was low in the sky as its still late winter/early spring. The bank was half charged and is 4000mAh, so for pretty much the worst type of weather (no direct sun at all the whole day) for solar and the sun only being low in the sky anyway, I think it did well. I was able to fully charge this bank after two and a half days of this same weather. My 8000mAh power bank never reached full charge and obviously took a longer - 4 days but the 4th was spent stuck at 75 to 100%. Sunny days: Wow. This thing is great in the sun! the maximum output I've achieved is 2.2 amps, and that was on a bright sunny day at the beginning of April. It charged my 4000mAh bank in 3 hours and I've left my 8000mAh bank in the car which was charged completely by the time I'd finished work - I'd left it from 10am where the reading was 1.6, checked it at lunch time and the reading was 1.9 to 2.1 and then in the evening at 5pm when I finished work, the reading dropped to 0.2 with the sun being very low and the angle of my car not being great either. However, the bank was also showing as fully charged. I've also found that the last 15% or so takes way longer to complete, I'm no expert but it just seems like its harder for the solar charger to push in that final bit of charge! On sunny days it will manage but on other days I settle on 90% and switch to another empty bank. It's also worth bearing in mind that I choose to charge power banks still rather than plugging directly into my iPhone because if it takes say a day to charge it and it's still switched on, then you're going to need a sunny day to get it close to 100% because not only are you trying to charge up a 1821mAh battery, but you'll be using half of the supplied power to power the devices wifi/cellular/screen/background processes etc. An iPhone and some other devices also require a minimum amount of amps, so when its cloudy for a while and it's 0.4 on the solar charger, your phone/device might reject this and cut it off. A power bank generally doesn't so this power(although a small amount) is still soaked up. The only thing that does annoy me about this solar charger is that the USB ports are difficult to access from within the pocket - it's not a big deal, maybe something BigBlue can improve on in the next model. Very happy with my purchase.

## Features

- Warning:Not suitable for children under 6 years. For use under adult supervision
- Warning:To be used under the direct supervision of an adult
- Built-in Ammeter and Chip: The BigBlue 28W solar charger features a digital ammeter that displays real-time ampere readings and an internal chip that ensures stable charging. Equipped with N-type solar panels, it achieves a high solar conversion efficiency of up to 25.4%, making it ideal for outdoor activities like camping, climbing, fishing, etc
- Wide Compatibility: This solar panel comes with a USB-C cable, suitable for most devices and some DSLRs. Through extensive testing with various phones, it is nearly universally compatible and works seamlessly with all major models. Perfect for outdoor camping, hiking, or exploration
- Safe Charging Design: Store your phone in the zippered pocket to keep it secure and clean during use. Its compact size (11×6×1.4 inches when folded / 32.9×11×0.2 inches when unfolded) and stainless-steel eyelets on each corner allow easy attachment to backpacks, trees, or tents
- Exclusive Smart IC Technology: Equipped with USB A and USB C ports, our solar phone charger utilizes a built-in intelligent chip to detect your device and deliver its optimal charging speed with the USB A port providing 5V/2.4A, the USB C port offering 5V/3A, and the dual ports together delivering a total output of 5V/4A
- IP44 Waterproof Protection: The solar panel is rated IP44, meaning it can withstand light rain and wet fog. It performs reliably in harsh environments, but avoid direct contact with water while charging to maintain functionality and longevity

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01EXWCPLC |
| Amperage | 2.4 Amps |
| Best Sellers Rank | 10 in Mobile Phone Solar Chargers |
| Box Contents | 28w Solar Panel Charger *1, Buckles * 2, Manual * 1, USB-C to USB-C Cable *1 |
| Brand | BigBlue |
| Brand Name | BigBlue |
| Colour | Blue |
| Compatible Cellular Phone Models | Apple iPhone 13 |
| Compatible Devices | Cellular Phones, Tablets, Speakers, Cameras, Power Bank |
| Compatible Phone Models | iPhone 13, 12, X, 8, 7, 6 Plus, 6s Plus, iPad Air etc, Android mobile phones such as Samsung S3 S4 S5 S6 S6 edge, S7, Nexus 6, 6p, Sony Z3 etc. HUAWEI, XIAOMI |
| Compatible Power Plug Type | Type C |
| Compatible devices | Cellular Phones, Tablets, Speakers, Cameras, Power Bank |
| Compatible phone models | iPhone 13, 12, X, 8, 7, 6 Plus, 6s Plus, iPad Air etc, Android mobile phones such as Samsung S3 S4 S5 S6 S6 edge, S7, Nexus 6, 6p, Sony Z3 etc. HUAWEI, XIAOMI Compatible phone models iPhone 13, 12, X, 8, 7, 6 Plus, 6s Plus, iPad Air etc, Android mobile phones such as Samsung S3 S4 S5 S6 S6 edge, S7, Nexus 6, 6p, Sony Z3 etc. HUAWEI, XIAOMI See more |
| Connectivity Technology | USB |
| Connector Type | USB |
| Connector type | USB |
| Country of Origin | China |
| Current Rating | 2.4 Amps |
| Current Type | DC |
| Customer Package Type | Frustration-Free Package (FFP) |
| Customer Reviews | 4.3 out of 5 stars 8,718 Reviews |
| Enclosure Material | Monocrystalline Silicon |
| Form Factor | Folding |
| Frequency Range | 60 hertz |
| Global Trade Identification Number | 00768390608519 |
| Included components | 28w Solar Panel Charger *1, Buckles * 2, Manual * 1, USB-C to USB-C Cable *1 |
| Input Voltage | 5 Volts |
| Item Type Name | solar panel charger |
| Item Weight | 671 Grams |
| Main Power Connector Type | 2 Pin |
| Manufacturer | BigBlue |
| Manufacturer Part Number | BB 401 |
| Model Name | B401DD |
| Model Number | B401D |
| Mounting Type | Unfold all the solar panels and connect to your devices in direct sunlight |
| Number of Items | 1 |
| Number of Power Levels | 1 |
| Output Current | 2.4 Amps |
| Output Voltage | 5 Volts (DC) |
| Plug Type | Type-C Cable |
| Portable | Yes |
| Power Plug Type | No Plug |
| Power Source | Solar Powered |
| Special Features | 2 USB Outputs, High Energy Conversion, Portable and Folding Solar Panel Charger, Smart IC Technology |
| Special feature | 2 USB Outputs, High Energy Conversion, Portable and Folding Solar Panel Charger, Smart IC Technology |
| Specification Met | certified frustration-free |
| Total USB 2.0 Ports | 2 |
| Total USB Ports | 2 |
| UPC | 768390608519 |
| Unit Count | 1.0 count |
| Voltage | 5 Volts |
| Wattage | 28 watts |
| Wired Charging Connector Type | USB Type C |

## Product Details

- **Amperage:** 2.4 Amps
- **Brand:** BigBlue
- **Colour:** Blue
- **Compatible devices:** Cellular Phones, Tablets, Speakers, Cameras, Power Bank
- **Connector type:** USB
- **Included components:** 28w Solar Panel Charger *1, Buckles * 2, Manual * 1, USB-C to USB-C Cable *1
- **Input voltage:** 5 Volts
- **Special feature:** 2 USB Outputs, High Energy Conversion, Portable and Folding Solar Panel Charger, Smart IC Technology
- **Total USB ports:** 2

## Images

![BigBlue 28W Solar Charger Foldable with Digital Ammeter - Image 1](https://m.media-amazon.com/images/I/81eY6Rp1-cL.jpg)
![BigBlue 28W Solar Charger Foldable with Digital Ammeter - Image 2](https://m.media-amazon.com/images/I/71w3nVOERSL.jpg)
![BigBlue 28W Solar Charger Foldable with Digital Ammeter - Image 3](https://m.media-amazon.com/images/I/71A6t7X8yUL.jpg)
![BigBlue 28W Solar Charger Foldable with Digital Ammeter - Image 4](https://m.media-amazon.com/images/I/81SUWY1JJjL.jpg)
![BigBlue 28W Solar Charger Foldable with Digital Ammeter - Image 5](https://m.media-amazon.com/images/I/71GXSI5fmGL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: This solar charger can store electricity?**
A: Our solar charger can't store the electricity, pls unfold four solar panels in the direct sunlight and then connect with your device.

**Q: What's the auto-restart function?**
A: Any cloud or covering arrives may knock the value of output down, but this folding solar panel charger can automatically recover to normal charging speed when there are enough sunlight.

**Q: This solar charger can use for Androids and Apple cellphones?**
A: Compatible with most of USB rechargeable devices, include the Apple device(Except iPad Pro). Our solar panel isn't suitable for small current charging products (standard charging current is below 200mA), which will be continuous shutdown and restart.

**Q: Why the real output is different from the power claimed?**
A: 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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Capable solar charger (but not 28W)
*by M***F on 22 July 2019*

The bad news: the highest charging current I've had in ideal conditions (Scotland, midsummer, midday sun, clear skies) is only 1.7/1.8A. A long way short of the maximum suggested by the manufacturers. The good news: 1.7A is an extremely useful charging current. The Big Blue can also pump out some solid current on overcast days - close to 1A with light cloud. Obviously really heavy cloud will drop the output to zero. In mixed weather conditions I found it more than capable of keeping phone, headtorch batteries etc charged on an extended camping trip. My phone gets used pretty heavily - photography, news & weather if I can get online, Kindle books etc - so this was a solid performance. I also used a couple of 18650 batteries and a Nitecore F1 charger as a lightweight buffer for the rainy days when I couldn't deploy the panel. On sunny days there's charge to spare to fill up the batteries. The 3 stars for water resistance is just my best guess. The unit seems to cope OK with a smattering of rain but I wouldn't want to get it really soaked. The panels seem to have a waterproof coating but I doubt very much if the main electronics, under the display, are waterproof. Why does water resistance even matter for a solar panel? In showery conditions the Big Blue can gather a lot of useful charge in the bright spells. A fully-waterproof unit could be left out unattended while you get on with something else. That's the bottom line for portable chargers: do they fit seamlessly with daily life in the field or does it feel like device-charging is starting to dominate your time? The Big Blue performs well enough not to be a nuisance. The display is great - indispensable really. If you want to learn how best to use the panel you need to see how well it works in different conditions. I measured the weight at 610g on scales of unknown accuracy. All in all, I like it. May not perform as well as claimed (I didn't really expect it would) but it does perform well.

### ⭐⭐⭐⭐⭐ It performs great for a solar charger and does exactly what I wanted.
*by J***J on 15 April 2018*

I've had this a month now and have tested it in all sorts of weather. I have to say, although I was worried it wouldn't be too great with the British weather, it has surprised me... a lot! I've provided two examples below of my experiences where the charger was on the dash of my car (on sunny days I folded the output screen under the panels with the windows ajar). I also only charged one item at a time. Very cloudy/rainy day with no direct sunlight: When it first arrived in March, the weather was miserable but I was still able to get a reading of 0.2 to 0.4 amps. So I plugged in an iPhone and it began to charge! However, rather than leave my phone in the car, I plugged in my small power bank and left the panels on the dash of my car. I thought that the windscreen would filter out some of the required rays but I had the same reading in and out of the car. Anyway, I came back to the car that evening after it rained all day and the sun was low in the sky as its still late winter/early spring. The bank was half charged and is 4000mAh, so for pretty much the worst type of weather (no direct sun at all the whole day) for solar and the sun only being low in the sky anyway, I think it did well. I was able to fully charge this bank after two and a half days of this same weather. My 8000mAh power bank never reached full charge and obviously took a longer - 4 days but the 4th was spent stuck at 75 to 100%. Sunny days: Wow. This thing is great in the sun! the maximum output I've achieved is 2.2 amps, and that was on a bright sunny day at the beginning of April. It charged my 4000mAh bank in 3 hours and I've left my 8000mAh bank in the car which was charged completely by the time I'd finished work - I'd left it from 10am where the reading was 1.6, checked it at lunch time and the reading was 1.9 to 2.1 and then in the evening at 5pm when I finished work, the reading dropped to 0.2 with the sun being very low and the angle of my car not being great either. However, the bank was also showing as fully charged. I've also found that the last 15% or so takes way longer to complete, I'm no expert but it just seems like its harder for the solar charger to push in that final bit of charge! On sunny days it will manage but on other days I settle on 90% and switch to another empty bank. It's also worth bearing in mind that I choose to charge power banks still rather than plugging directly into my iPhone because if it takes say a day to charge it and it's still switched on, then you're going to need a sunny day to get it close to 100% because not only are you trying to charge up a 1821mAh battery, but you'll be using half of the supplied power to power the devices wifi/cellular/screen/background processes etc. An iPhone and some other devices also require a minimum amount of amps, so when its cloudy for a while and it's 0.4 on the solar charger, your phone/device might reject this and cut it off. A power bank generally doesn't so this power(although a small amount) is still soaked up. The only thing that does annoy me about this solar charger is that the USB ports are difficult to access from within the pocket - it's not a big deal, maybe something BigBlue can improve on in the next model. Very happy with my purchase.

### ⭐⭐⭐⭐ mixed results
*by D***R on 13 September 2026*

Sometimes this seems to charge my power banks quite well, and on other apparently sunny days it struggles to add much juice to the bank. It's better than the previous version which on "sunny in parts" days would actually drain the power bank completely rather than charging it. But it's not something I've been able to rely on to add power. Nice when it works : disappointing when it doesn't

## Frequently Bought Together

- [Upgraded] BigBlue 3 USB Ports 28W Solar Charger(5V/4.8A Max), Portable Foldable Solar Panel for Camping, IP44 Waterproof, Compatible with iPhone 11/XS/XS Max/XR/X/8/7, iPad, Samsung Galaxy LG etc.
- Hiluckey Solar Charger 25000mAh, Outdoor USB C Portable Power Bank with 4 Solar Panels, 3A Fast Charge External Battery Pack with 3 USB Outputs Compatible with Smartphones, Tablets, etc.
- Anker Power Bank(PowerCore 10K),Compact Travel-Ready 10,000mAh Battery Pack with PowerIQ Charging Technology,5V/3A High-Speed Charging for iPhone,iPad,and More (USB-C Input and Output（Black），1pack)

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-10-03*