FlexSolar 20W Portable Solar Panel Charger for Camping Foldable Solar Panel

This is a 20W solar panel that can deliver up to 15W when charging a single device or 10W each if used to charge two items at the same time. It works perfectly in direct sunlight and is small enough to fit inside any bag for easy carry - it's also very lightweight. I also tested it inside, placing it on the windowsill of my bathroom window and after 15 minutes it charged my Pixel 8 phone from 88% to 92%. On a second slightly sunnier day it charged my phone from 92% to 98% and on a third day it charged my phone from 69% to 80%. It's very easy to use and great value. The only concern is the hinges which feel a bit delicate and should not be roughly handled. The solar panel came with a sheet of 5mm thick soft foam inside to protect the screen during transport and I kept it because it prevents the hinges from being compressed or squeezed too tightly when folded up. Overall 5* for charging a power bank, phone or tablet on the go.

I rarely leave Amazon reviews—especially 5-star ones—but this product genuinely deserves it.The FlexSolar 20W Portable Solar Panel Charger has exceeded my expectations. The build quality is excellent, it’s lightweight and easy to carry, and I was genuinely amazed by how well it performs, even in less-than-perfect sunlight. It charges reliably and has become an essential part of my outdoor kit.A fantastic product that delivers on its promises. Highly recommended!

This will be a running review as I test this panel and the Big Blue panel in different conditions outside.CONDITION 1 : 1 hour before sunset in a grey sky - total cloud cover - rainy :When Flex Solar was plugged into a battery, it showed that it was chargingWhen Big Blue was plugged into a battery, it showed 0 amp on the output ammeter and the battery showed no sign of charging. Also the inbuilt ammeter blinked on and off.I googled it and learned from Big Blue R&D department that Big Blue only operates properly in full sunlight. So I will see if this is the case.I will text them both at different times of the day and under different atmospheric conditions to see which ones perform best.

What a joke! I tested this out of the box with a USB power meter, and it showed 5V*0.6A=3W output in direct sunlight - a far cry from the 15W claimed from either port. I did try this with both the USB-C and USB-A ports, and found the same thing. I also plugged my phone in for 20 minutes, and it received 3% (of a 3900mAh capacity - Samsung S23). So that means it was only charging at about 0.35A or 1.75W, so about a tenth of its rated power. I know that solar panels are unlikely to operate at peak efficiency all the time, but to fall this far short of the claimed output is just unacceptable. Returning this immediately.

Great even charged my battery pack when it was cloudy

Got it on offer, took it to a festival. Granted it was baking hot and wall-to-wall sunshine, but even so the solar panel performed better than expected. Multiple charges of my phone - and like decent charges, 12% to 100% - as well as a vape and a top-up of a portable shower. So in the height of summer, it's dead handy when you're out and about. I'll come and edit this review after trying it out on a cloudy September day.

Absolutely fantastic product ,didn’t expect this to be so good for the price but it was worth every penny worked well for our camping trip even when it rained it still charged our phones and other things too easy to use too

Works ok !! Not the best, but not the worst

The light is on, the sun had been shining on it for weeks, but it doesn’t charge anything.

Llevo un tiempo usando este panel solar y la verdad es que estoy bastante contento. Lo compré buscando algo pequeño para cargar el móvil en salidas al campo o tenerlo de emergencia en casa por si falla la luz, y ha cumplido de sobra.Es muy compacto, se pliega bien y apenas ocupa espacio en la mochila. Pesa poco y si le da bien el sol, carga el móvil sin problema. No es tan rápido como un enchufe, claro, pero para lo que es, funciona muy bien. En condiciones normales (sol directo), me ha cargado el móvil al 100 % en unas pocas horas.Me gusta que tenga salida USB-A y también USB-C, porque da más juego para distintos cables y dispositivos. Además, al no llevar batería integrada, no tienes que preocuparte por si se estropea por no usarlo: lo guardas y listo, solo funciona cuando lo necesitas.No hace milagros si el día está nublado, pero incluso entonces da algo de carga. Lo he usado tanto en escapadas como en casa simplemente por tener una fuente extra de energía sin depender de enchufes, y me parece muy útil.En resumen, es una buena opción si buscas algo portátil, ligero y que funcione de verdad. Lo seguiré usando y, si dura lo que parece, habrá sido una compra muy bien hecha.

I have used this bikepackings, strapped on top of some bags on the rear rack.You get a reasonable amount of power when riding in the sun, enough to keep me totally off grid as long as you get a few hours of sun each day. The devices you charge may get confused when you move rapidly in and out of the sun, we can't blame this panel for that.It's seems to handle rain and mud and dirt well, it still works after getting covered in mud, dust and water biking around a few weeks.It's quite heavy at 676g, but well built and sturdy.

Ich habe diesen Solarlader für eine obdachlose Frau gekauft. Das Gerät ist nahezu täglich im Einsatz.Sogar bei Nebel läßt sich damit ein wenig Strom generieren.Bei Sonnenschein kann man damit einen Steckerlader komplett ersetzen und neben dem Radiogerät auch noch eine Powerbank laden.Es wurden damit in 11 Monaten Nutzung schon geschätzte 500 AA-Batterien (3 Stück jeden zweiten Tag für ein kleines Radiogerät mit eingebauter Lampe) eingespart.

Pour le moment ces panneaux me satisfont totalement . Ils sont légers faciles à installer sur la table de ma terrasse ou autre. Ils chargent correctement mon portable ou une lampe frontale si soleil évidemment ….ce n est donc pas une arnaque pour une fois …..