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☀️ Charge smarter, roam freer — never miss a beat off the grid!
The FlexSolar 40W Foldable Solar Charger combines cutting-edge 24% efficient monocrystalline solar panels with versatile USB-C PD 2.0, QC3.0, and DC ports to rapidly charge smartphones, tablets, laptops, and more. Engineered with durable ETFE material and IP67 waterproofing, it withstands harsh outdoor conditions, making it the perfect companion for camping, hiking, and emergency power needs. Its compact, foldable design and smart charging tech ensure you stay powered up wherever your adventures take you.










| ASIN | B09H6GGK55 |
| Amperage Capacity | 2.1 Amps |
| Best Sellers Rank | 2 in Mobile Phone Solar Chargers |
| Brand | FlexSolar |
| Connector Type | USB Type A, USB Type C |
| Country of Origin | China |
| Customer Reviews | 4.2 4.2 out of 5 stars (1,152) |
| Efficiency | High Efficiency |
| Folded Knife Size | 8,14x11,1x1,73 pollici |
| Included Components | FlexSolar solar charger, 2 carabiners, 1 user manual |
| Item Dimensions L x W x H | 124L x 27.9W x 0.3H centimetres |
| Item Type Name | Foldable Solar Panel |
| Manufacturer | FlexSolar |
| Material | ETFE, Aluminum |
| Maximum Power | 40 Watts |
| Maximum Voltage | 20 Volts (DC) |
| Model Number | E40 |
| Output Voltage | 5 Volts |
| Part Number | FLC-E6-200400- |
| Special Features | 24% Module Efficiency, Class A Application, ETFE Material, IP67 Rated Waterproof, USB QC 3.0 & PD 2.0 & DC |
| UPC | 785249519352 |
| Unit Count | 1.0 count |
T**N
Great solar backup
Great backup solar charging, folding away nicely for storage. Fits across the dashboard of a Vw T5
A**R
Can deliver 40w!
Under direct sun close to the equator, my Mac book reported this as a 41w power connection! I have not tried any other power monitors. What I can say is everything was charging fast. I tend to use it on the beach, to charge a power bank, which runs a Starlink mini all day long! That setup keeps the kids happy with internet, which provides some peace. It’s a small panel, about the size of a Mac book 13. Easy to chuck in with other beach gear. Seems very robust.
I**E
Good portable solar panels, but not the power rating you may think.
It should be noted that 40w is under lab conditions. In reality panels heat up in sunlight which reduces their efficiency and thin portable panels rarely give the rated value. In direct UK summer sunlight around 25 Deg C, I get about 12W max out of this kit. That is still very useful and can be used to charge up most small-medium devices, medium power banks in say 6 hours or so or more. I like that these are portable. One thing to not too is that USB A connection and cable will limit you to around 3W, so best to use the USB-C connection to get upto 20W+ etc.
M**X
Thumbs up
Its enough to run 3 phones, 2 sets of wireless headphones, a 2 bike battery array (and occasionally a Samsung tablet + emergency power bank/bike battery booster and radio) for literally 24/7 (on a sunny day ofc, today was cloudy, so no tablet to preserve the charge). Does it output 19V? Nope, Best I saw was 12.8 via DC direct connection, however, that is still amazing and quoted cap is under ideal conditions). Folds small enough for a backpack (and has space in the middle when folded for the tablet, damn efficient) enough for off the grid living (until your batteries die as needs a buffer). Would have bought a second one if not for the price being raised from 35 to 50 squid.
K**H
Decent solar panel, gains around 25 - 31w
I have used this to charge a Anker Prime 27,650 mAh Powerbank, it charges at around 25w which isn’t 40 but it’s still good. (I have only used the USB-C and USB-A, I am yet to use the DC 5521 (next review I will have). The output is more that what is said by FlexSolar which is great, no complaints there. It is a little expensive but for the purpose of being portable, it’s great. Very easy to use, it even has a red light which activates when the solar panel receives enough light to create electricity. Updated Review with DC & Anker C200: Yesterday, I charged 90% in a full day which adds up to 54,000mAh / 60,000. Keep in mind I also charged a full phone which adds up to around 3,500mAh. The solar panels are pretty decent, on a good day, in a good position you could get up to 31w through the DC cable. (It is a DC5521) I do consistently get around 25w in full sun, no clouds at around 90 degrees. It is a decent panel which does require strong amounts of sunlight. If you have the extra £10 (when on sale) I would definitely prefer to get the 60w rather than this 40w since the output is around 62% than what is claimed.
N**N
Not very reliable!
Broke after a week, was mounted on a 60 degree wooden pole and stopped working shortly after. No rain during this period.
D**D
Solid power delivery
Works great, delivers usually 27/28W It one time hit 30W , I can charge my 99wh Anker battery pack in about 4 hours ish ? I don't live in the UK I live in a VERY sunny place so if I don't hit 40W no one will and I don't expect the panel to reach that. Kind wish it had a way to be laid other than flat but I guess that's what you get for the price range
D**E
Great Item and good value
Fairly lightweight. Charges battery pack really well. I'm not sure about the sunshine level or timing, because I tend to leave it outside the tent charging the battery pack and it's usually charged by the time I return even when there isn't much sunshine. Great value for money.
M**T
Bonne efficacité. M'a permis de garder tous mes appareils électroniques chargés oendnt un voyage de 6 semaines. Assez robuste pour les activités de plein air.
D**L
Usato in campeggio per 12 giorni,ricaricato powerbank e smartphone senza alcun problema.
O**R
Flex Solar Tragbares Solar-Ladegerät mit 40 W ------------------------------------------------------ Seit langem spielte ich mit dem Gedanken mir ein Ladegerät mit Solartechnik zu beschaffen, leider ließt man bei den meisten gemischte Rezensionen von Gut bis schlecht alles dabei, was natürlich Unsicherheit zum Produkt schürt. Dieses Modell ( 40 W ) habe ich mit einem IPhone 13 Mini via dazugekauften USB Anschluss (0,2m) an einem Sonnig / bewölkten Tag (70/30%) im April 2022 getestet. Das Ergebnis kann sich wie ich finde sehen lassen, aber erstmal zum Aufbau & Location: ------------------------------------------------------ > Aufbau: Ich habe das Panel gezielt nur auf das flache Gras gelegt, ohne Anstellwinkel, weil ich wissen wollte wie es in den meisten Situationen ohne suchen von Anstellmöglichkeiten operiert. ------------------------------------------------------ Location: In meinem Garten eine Süd / Südwest Ausrichtung genutzt welche ohne Bäume / Hindernisse frei der Sonne zugängig ist. Uhrzeit Start: ca. 16:00 ------------------------------------------------------ > Ladeleistung: Durchschnittlich hatte ich eine Ladeleistung von 1 % pro Minute (bei praller Sonne), habe dies mehrmals kontrolliert und mit einer Stoppuhr gemessen, WOW !, das würde durchschnittlich bei einem Akkustand von 0 - 100 %, bei praller Sonne 100 Minuten bedeuten ( 1 Std. 40 ) was ich mehr als gut finde für ein Panel dieser Größe. Mein IPhone 13 Mini hatte bei beginn des Tests 30% Ladestand, und für den Sprung auf 100 % ( +70%) waren 1Std & 20 Minuten nötig, leider hat sich zwischendrin ab und an mal eine Wolke dazwischen geschoben. ------------------------------------------------------ > Powerbank: Diesen Test habe ich noch nicht unterzogen, aber aus dem Netz befindliche Informationen beschreiben eine gewisse Problematik mit den Größen der Power Banks, hat man also eine 19.000 + ...... Powerbank würde diese wohl sehr viel Zeit in Anspruch nehmen trotz der guten Ladeleistung, werde dies aber noch beim nächsten mal testen und den Bericht erweitern. ------------------------------------------------------ > Verarbeitung: Die Verarbeitung sieht robust aus, nichts was sich wie eine schwabbelige Folie anfühlt, oder man angst haben muss das es beim Aufliegen auf Stein / holzigem Untergrund sofort kaputt geht. Auf der Unterseite der Solarplatten ist eine Art aufgeraute Matte laminiert, die Stärke des Panels sind ca. 2 mm. ------------------------------------------------------ > Mitführen Für einen Spaziergang im Rucksack oder Strand, Baggersee, Hütte usw. sieht das Panel wie gemacht aus, die Größe würde ich auf IPad Niveau ansiedeln. Das Teil an einen Rucksack hängen während man damit wandert ? Naja ich persönlich würde sagen zu groß !, eher zum laden bei Rast / Pause aus dem Rucksack entnehmen & laden. ------------------------------------------------------ > Fazit. Für Handy, Smartwatch, Taschenlampen usw. ist dieses Teil bei passendem Wetter ein absolutes Monster ! Lade Leistung bei aktuellen Handys überzeugt ! Von meiner Seite aus Daumen Hoch !
P**E
Wij hebben deze zonnecel aangeschaft voor het kamperen met de tent. Wij gebruiken daar nooit stroom. Nu met deze uitvouwbare zonnencellen, kunnen wij onze powerbank opladen en daar weer mee al onze telefoons, reader's en elektrische tandenborstels opladen. Na ontvangst heb ik de zonnecellen even getest en in ongeveer 2 uren was de powerbank (22800) opgeladen. Was niet constant stroom. We zijn dus zeer tevreden.
N**Y
It recharged my 24k Anker power bank in around 3 hours. This solar panel is light and very good quality.
Trustpilot
4 days ago
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