Try our cookiesAlza.cz a. s., Company identification number 27082440, uses cookies to ensure the functionality of the website and with your consent also to personalisage the content of our website. By clicking on the “I understand“ button, you agree to the use of cookies and the transfer of data regarding the behavior on the website for displaying targeted advertising on social networks and advertising networks on other websites.
We use 8 categories of cookies on our website:
Technical cookies
These are strictly necessary for the functioning of the website and the features you choose to use. Without them, our website would not work; you wouldn't be able to log in to your user account, for example.
Functionality cookies
These cookies allow us to remember your basic choices and improve the user experience. These include remembering your preferred language or allowing you to stay logged in permanently.
Social media cookies
These cookies allow us to easily link you to your social media profile and, for example, allow you to share products and services with your friends and family.
Content personalisation
These cookies allow us to show you content and ads according to the information we have about you to best meet your needs. This includes what content you have viewed, or on what device you are accessing our website.
Non-personalised advertising
These cookies allow us to show you general ads for products and services.
Personalised advertising
Thanks to these cookies, we and our partners can offer you relevant products and services based on your purchases, your shopping behaviour and your preferences.
Audience metrics
These cookies allow us to optimise our site for your convenience based on how you use it. The aim is to remember or anticipate your choices. This includes, for example, the use of features, their location, or the behaviour on the page.
Third party cookies
These are third party cookies, and you can find out more about them and our partners here.
By giving your consent to the processing of cookies, functionality and analytical cookies will be installed on the device you use to browse the website (click on the "I understand" button for both categories, or you can select only one of the categories by clicking on the "Settings" button). We always install technical cookies on your device, even without your explicit consent, because without them our website would simply not work.
You can revoke your consent to the processing of cookies. In connection with our company's cookie processing, you also have the following rights: the right to access cookies, delete, modify, supplement and correct them, restrict processing and the right to lodge a complaint with the Office for Personal Data Protection. Read more about your rights.
Interested in reviews of BigBlue B401D 3 USB Port 28W Solar Charger? It got 4.7 out of 5 stars from our customers. Find specific customer reviews of BigBlue B401D 3 USB Port 28W Solar Charger below. We will appreciate if you also share your experiences with BigBlue B401D 3 USB Port 28W Solar Charger after purchasing.
Rated 21/08/2025, variant BigBlue B401D 3 USB Port 28W Solar Charger
Verified purchase
When the sun is shining, it charges, when it's under a cloud, unsurprisingly, it doesn't. In strong sunlight, with the panel placed inside behind the window, my phone charged quite well, it didn't seem much slower than with the mains charger (94% -> 100% in a few minutes ). I've only had the charger for a short time, so we'll see what it can take.
light weight
can be folded and easily transported
holes and loops for attachment
it works as I would expect
unlike the larger, non-portable panels, it does not generate when it is light but cloudy, but that is to be expected and not really something I would consider a real negative
0 ×Report
Automatic translation
Customer, Praha 5 - Radotín
Rated 06/09/2024, variant BigBlue B401D 3 USB Port 28W Solar Charger
Verified purchase - review from a price comparison website
Independence/Self-sufficiency. In sunny weather I can charge my mobile phone (6,200 mA) and my power bank (10,000 mA) in 6 hours and 40 minutes every day. At night I charge batteries for GoPro, drone, Shokz headphones, sometimes headlamp Felix HM61R 1600lm. I buy food at the stalls along the route, sometimes for several days. I have unlimited drinking water through triple filtration.
0 ×Report
Automatic translation
Luděk, Praha 4
Rated 11/07/2024, variant BigBlue B401D 3 USB Port 28W Solar Charger
Verified purchase
I tried it for a fool. I combined charging while walking while attaching it to a backpack with a power bank. It charges a little, but it' s no miracle. In order to get more energy, it wants to take a break and direct the panel at an angle of about 30˚ in the direction of the Sun. So I had to move the panel depending on where it was currently lit. When a person " hunts for light", he charges his mobile phone, tablet, power bank in peace. It probably doesn' t matter much without a power bank. At lower light levels, the generated energy fluctuates and switches the charging on the mobile phone on and off. Maybe even several times a minute, so it' s better to charge on a power bank. Three USB outputs seem unnecessary to me. I tried charging multiple devices at the same time. It works, but it increases the time it takes to charge each of them, so I preferred the tactic of charging the weakest and at full power to keep the device alive as long as possible.
easy to use
charges two phones in about 4 hours in sunny weather
it charges a little even in the dark
you need a power bank to conserve energy
useless 3 usb outputs, 1 would be enough
0 ×Report
Automatic translation
Adéla, Praha
Rated 04/05/2024, variant BigBlue B401D 3 USB Port 28W Solar Charger
Verified purchase - review from a price comparison website
Very slow charging even in direct sunlight, relatively heavy and very bulky, there should be one eye on the top of the pocket. Too expensive for what it "can" do. Otherwise tolerable
I think for someone at the cottage where there is no electricity and will be "at home" all day so throw it on the table outside in the sun it's not bad, but it's really slow even in direct sun and. I can't imagine having it while walking on a backpack when it's not constantly in the sun, it then discharges much faster than charging the phone. Unfortunately, it's been returned and we're sticking with power banks. But I'm sure someone will find it useful.
0 ×Report
Automatic translation
Radek, Brno
Rated 27/02/2024, variant BigBlue B401D 3 USB Port 28W Solar Charger
Verified purchase
performance, size, processing satisfactory
725g of weight instead of the stated 610g sets off warning lights in my brain
0 ×Report
Automatic translation
Lukáš, Kuřim
Rated 12/12/2023, variant BigBlue B401D 3 USB Port 28W Solar Charger
Verified purchase
Opravdu funguje,mobil o kapacitě 5000amh dobije na přímém slunci teď v zimě za 30min na 25%kapacity.Opravdu super,kde není přístup k elektrické síti na dobíjení malých zařízení.
Pokud slunce nesvítí,je zataženo, prší nebo sněží nenabijete ani 1%
0 ×Report
IQ floor s.r.o., Brno
Rated 25/04/2023, variant BigBlue B401D 3 USB Port 28W Solar Charger
Verified purchase - review from a price comparison website
I've been using it for a while, but I think it's great
0 ×Report
Automatic translation
P-DC1-WEB15
Einkaufen im HandumdrehenBequemes Einkaufen mit der Alza-App, wo auch immer du bist!More info »