---
product_id: 724996479
title: "28W Solar Panel Compact 3 USB Ports USB-A/USB-C (5V/4.8A) [25.4% Conversion Efficiency Lightweight Portable Convenient] Solar Charger Solar Charger Foldable Auto Retry Function Carabiner"
brand: "bigblue"
price: "34759 Ft"
currency: HUF
in_stock: true
reviews_count: 13
category: "Big Blue"
url: https://www.desertcart.hu/products/724996479-28w-solar-panel-compact-3-usb-ports-usb-a-usb
store_origin: HU
region: Hungary
---

# Lightweight & foldable for ultimate portability 3 USB ports (USB-A + 2x USB-C) 4.8A max output 25.4% top-tier solar efficiency 28W Solar Panel Compact 3 USB Ports USB-A/USB-C (5V/4.8A) [25.4% Conversion Efficiency Lightweight Portable Convenient] Solar Charger Solar Charger Foldable Auto Retry Function Carabiner

**Brand:** bigblue
**Price:** 34759 Ft
**Availability:** ✅ In Stock

## Summary

> ☀️ Power Your Adventures, Anytime, Anywhere!

## Quick Answers

- **What is this?** 28W Solar Panel Compact 3 USB Ports USB-A/USB-C (5V/4.8A) [25.4% Conversion Efficiency Lightweight Portable Convenient] Solar Charger Solar Charger Foldable Auto Retry Function Carabiner by bigblue
- **How much does it cost?** 34759 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/724996479-28w-solar-panel-compact-3-usb-ports-usb-a-usb)

## 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

- • **Auto-Retry Charging:** Seamlessly resumes charging after clouds clear—no manual resets, just uninterrupted energy flow.
- • **Compact & Travel-Ready:** Foldable, featherlight (682g) design fits effortlessly in your backpack for on-the-go power.
- • **Sun-Powered Efficiency:** Harness industry-leading 25.4% solar conversion for rapid, eco-friendly charging anywhere.
- • **Triple Smart USB Ports:** Simultaneously power up to 3 devices with Smart IC tech optimizing fast charge per device.
- • **Weather-Resilient Design:** IPX4 waterproof & rugged fabric withstands sudden rain or snow—your reliable outdoor companion.

## Overview

The BigBlue 28W Solar Panel is a foldable, lightweight solar charger featuring 25.4% conversion efficiency and 3 USB output ports (USB-A and USB-C) delivering up to 4.8A total. Designed for outdoor enthusiasts and emergency preparedness, it boasts Smart IC technology for optimized charging, an auto-retry function for fluctuating sunlight, and a rugged IPX4 waterproof build. Perfect for camping, hiking, and travel, it ensures your devices stay powered sustainably wherever the sun shines.

## Description

desertcart.co.jp: BigBlue 28W Solar Panel Compact 3 USB Ports USB-A/USB-C (5V/4.8A) [25.4% Conversion Efficiency Lightweight Portable Convenient] Solar Charger Solar Charger Foldable Auto Retry Function Carabiner : DIY, Tools & Garden

Review: 太陽に当てても充電が出来ない！と思っていたら、私の勘違いで、蓄電する訳ではなく、太陽に当てながら充電をする物でした。 レビューを入れたところ、親切に対応していただきました。 星1→星5に変更しました。
Review: 小さい発電力パネルですがDC出力があり、単独と2台並列を使い分け出来るので購入。 12月中旬13時頃に1台で21Wでした、もう少し欲しい所です(夏場に期待)。午前中窓の内側でもiPhoneをtype-cから10W程度で充電出来ていました。 悪い所は折り目が硬くなかなか平らに置けないのと影が入るとガッツリ発電力が落ちてしまう所でしょうか。

## Features

- ☑️【Note: This product requires direct sunlight for charging, and it does not come with a "mobile battery included". Please do not mistake it for a mobile battery 【Smart IC technology and auto-retry function】With BigBlue's proprietary Smart IC technology, each USB port automatically detects connected smartphones and other devices, providing fast charging at the optimal current The auto-retry function means that when charging the device, if the power generation decreases due to cloudy weather, the power generation can automatically increase when the weather improves No need to set up the solar charging cable when the weather changes between sunny and cloudy; it automatically restarts charging Adopting a lightweight and more portable structure, it is designed to be perfect for outdoor activities such as long-distance travel, climbing, camping, hiking, and BBQ Great as an emergency power source for earthquakes and disasters
- ✅【25.4% Industry Top Conversion Efficiency】Adopts high-efficiency solar panels, which are the most durable battery panels in the industry and more durable than conventional solar panels Simply place it in a sunny spot to charge your battery, etc The solar conversion efficiency is high at 25.4%, and it is equipped with 4 high efficiency solar panels to achieve maximum power generation When sunlight hits the panel vertically, it allows for rapid charging regardless of the season
- ✅【3-Port Output USB-A/Type-C*2】: ① Smart Charging: Equipped with 3 USB output ports (USB-A, USB-C) Each port can output up to 5V / 3A Total maximum output of up to 4.8A across 3 ports is possible (charging amount varies depending on sunlight) All three ports are covered with rubber covers to protect against dust and water damage ※Cannot charge PCs and products with ultra-low power consumption (smartwatch, wireless headset, etc.)
- ✅【Easy to Carry】Easy to Carry: The simple design cuts out all unwanted switches and connection wires. It is foldable, so it is easy to carry and does not break easily during transportation When folded, the size is approximately 282 x 160 x 20 mm, and when unfolded, it is approximately 840 x 282 mm. The weight is 682 g The dual-port power supply is applicable by connecting to all Android devices and some DSLRs A cable is included Additional cables are required for other devices
- ✅【Waterproof and Rugged Design】Adopts durable fabric and reinforced solar panel (The waterproof standard of the solar panel part is IPX4, so it is fine if it gets a little wet in sudden rain Dust-proof performance is achieved Withstands harsh environments such as sudden light rain or snow, making it ideal not only for everyday use but also for travel, camping, hiking, and more Great as an emergency power source for earthquakes and other disasters
- ✅【Warranty】From the order date, the seller provides a 24-month warranty If there is any issue, please contact us using the contact method below Contact Us: support@ibigblue.co.jp

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01EXWCPLC |
| Amazon Bestseller | #10,422 in DIY, Tools & Garden ( See Top 100 in DIY, Tools & Garden ) #21 in Solar Panels |
| Batteries Included | No |
| Batteries Required | No |
| Brand | BigBlue |
| Color Name | grays |
| Compatible Devices | Laptops, Smartphones, Speakers, Tablets |
| Connectivity Technology | USB |
| Customer Reviews | 3.8 3.8 out of 5 stars (8,512) |
| Date First Available | September 29, 2016 |
| Included Components | panels |
| Item Model Number | B401DD |
| Item Weight | 671 Grams |
| Item model number | B401DD |
| Manufacturer | BigBlue |
| Product Dimensions | 28.2 x 16 x 3.4 cm; 671 g |
| Size | B401D-28W |
| Special Features | Travel |
| Total Usb Ports | 2 |

## Product Details

- **Amperage:** 2.4 Amps
- **Brand:** BigBlue
- **Color:** grays
- **Compatible Devices:** Laptops, Smartphones, Speakers, Tablets
- **Compatible Phone Models:** Samsung Galaxy
- **Connector Type:** USB
- **Included Components:** panels
- **Input Voltage:** 5 Volts
- **Special Feature:** Travel
- **Total USB Ports:** 2

## Images

![28W Solar Panel Compact 3 USB Ports USB-A/USB-C (5V/4.8A) [25.4% Conversion Efficiency Lightweight Portable Convenient] Solar Charger Solar Charger Foldable Auto Retry Function Carabiner - Image 1](https://m.media-amazon.com/images/I/81Y+nxzTVGL.jpg)

## Available Options

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

## Questions & Answers

**Q: Can this solar charger charge your phone at night?**
A: No, this product cannot store electricity.You need to charge your device to connect it to the solar panel outside in direct sunlight.

**Q: Why is the actual output different from the power that clause?**
A: This product has 4 panels, 1 panel is 7W, so the power is 4*7 W=28W. The theoretical output is 5V/2.4A Max, total 5V/4.8A Max, and the theoretical total power is 5V*4.8A=24W. However, the solar energy conversion process has loss.

**Q: What is Auto Restart Function?**
A: When charging your device, when the clouds decrease, the weather will recover and generate power automatically.

**Q: Can this product charge a smartphone such as an iPhone or Android?**
A: Yes, you can charge it.This product only comes with a USBA to USBC cable. Cables for other devices are purchased separately.

**Q: What does the red indicator mean?**
A: Red LED light will light up when the solar panel is fully charged. Flashes if there is overcurrent or short circuit.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***ー on March 1, 2025*

太陽に当てても充電が出来ない！と思っていたら、私の勘違いで、蓄電する訳ではなく、太陽に当てながら充電をする物でした。 レビューを入れたところ、親切に対応していただきました。 星1→星5に変更しました。

### ⭐⭐⭐⭐ Review
*by く***ん on December 13, 2025*

小さい発電力パネルですがDC出力があり、単独と2台並列を使い分け出来るので購入。 12月中旬13時頃に1台で21Wでした、もう少し欲しい所です(夏場に期待)。午前中窓の内側でもiPhoneをtype-cから10W程度で充電出来ていました。 悪い所は折り目が硬くなかなか平らに置けないのと影が入るとガッツリ発電力が落ちてしまう所でしょうか。

### ⭐⭐⭐ Review
*by ジ***ー on December 29, 2024*

付属のDCケーブルに変換アダプタを噛ませて、Anker 548 Power Bankに繋いで使用しています。よく発電しますが、角度や向きをいくら調整しても、最高で18ｗの入力しかありません。購入して半年過ぎたくらいですが、今は15ｗほどしか入力されていないと表示されます。こんなものでしょうかね。 他の方はもっと発電されているようですから、ハズレを引いたのかな・・・ それともアダプターの問題でしょうかね？

## 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)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.hu/products/724996479-28w-solar-panel-compact-3-usb-ports-usb-a-usb](https://www.desertcart.hu/products/724996479-28w-solar-panel-compact-3-usb-ports-usb-a-usb)

---

*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-03-10*