Foldable Solar Panel USB/DC Solar Panel Charger 18V Portable Solar Panel 80W for Laptop Solar Battery Charger for Camping Portable Solar Panels for Rv Portable Solar Charger for Car Battery

This is a review of the Giaride 80-watt foldable solar charger. I believe this is the same item as the AllPowers 80-watt foldable solar panel, as the charge controller on mine says “AllPowers” even though the outside fabric say Giaride. I saw a comment somewhere that both companies’ solar panels are made at the same factory.First, I’ve noticed in some of the reviews that people were having problems with the 12v/19v DC output from the charge controller. The specs say that this is a DC5521 output. This means that the DC output is for a 5.5mm inside diameter outer barrel and a 2.1mm diameter inner plug. The spec is wrong, as the DC output is a DC5525, meaning that it’s measurements are 5.5mm and 2.5mm, respectively. I double checked that this was true with my micrometer. Adapters between the two sizes are available on Amazon.Second, the cigarette lighter plug provided is the male end. This makes no sense to me, as one doesn’t want to charge the solar panel. So you’ll need to buy the cigarette lighter female end if you want to charge other items with the 12/19 volt output. Make sure it is a 5525 connection or buy the adaptor to use a 5521 connection.Third, I used my multimeter to check the output of the solar panel and compared the results to a 5 year old 40-watt foldable solar panel that I am replacing. For the test, I used a TES 1333 Solar Power Meter to determine the light intensity. The light intensity when I ran my test was 1,050 watts/square meter (the meter and solar panel were both at the same inclination to the sun) which is very close the 1,000 watts/square meter that is used to standardize the output measurement of solar panels. For the Giaride, I measured an output at the DC connection of 22.46 volt & 3.46 amps for a total of ~77.7 watts, which is very close to the advertised 80 watts; for my old 40 watt solar foldable solar panel, I measured an output at the DC connection of 19.0 volts & 2.2 amps for a total of ~41.8 watts, which is also very close to what it was rated.Fourth, I tested the 5 volt usb outputs on my tablet and got an output of 4.9 volts & 1.05 amps for 5 watts. I then tested it through the dc output to a 12 volt factory Samsung cigarette adaptor and got an output of 5.3 volts & 1.63 amps for 8.64 watts. I got the same result with a wall charger as the 12 volt adaptor. I then ran this same test on a couple of backup batteries that I have that also have 12 volt dc outputs and 5 volt USB outputs. These batteries performed about about exactly the same as the Giaride solar charger for both the 5 volt and 12/19 volt outputs. So if you want to minimize your charge time it’s probably best to charge through a 12 volt adaptor. If charging as quickly as possible isn’t critical, I’m sure the 5 volt USB outputs are fine.Fifth, I measured the area of the 12 Giaride solar panels at ~0.397 square meters and measured my old 40 watt panel at ~0.278 square meters. Calculating the efficiency of the panels using my data, I arrived at an efficiency of ~18.6% for the Giaride and ~14.3% for my old solar panels. The efficiency value of the older panel, I believe, is typical for panels of that time, and while that 18.6 percent efficiency for the Giaride was below the advertised value, it is still significantly better than my old panel.Sixth, I weighed the Gliaride solar panel at 3lb 10oz/ 1.65kg; I weighed my old solar panel at 6lbs 3oz/ 2.8kg. Both are dimensionally pretty similar.Bottom line is that I get 185 percent of the power at 40 percent less weight and approximately the same volume with my new Giaride over my 5 year old solar panels.

Good:* Bought it for camping/emergency to put on top of my tent's roof. This was about the best deal for this form factor/capacity at the time on Amazon. Not by much, but somewhat cheaper.* The stitching and build is good in my copy, on par with my other more expensive foldable panel, no build problems noted. light and compact for camping use(as expected). Although it is definitely not one of those hiking-wearable types.* 18 V output. This panel is obviously an overkill just for charging phones/tablets. I bought it for the sake of 18V output. which seems to be on par with a regular solar panel, and is compatible with my controller. Charges my 288 W*hr UPS pretty quickly. Definitely enough sun-hours to charge it fully within the day. (4.5 ... 5 hrs perhaps).Not so good:* First of all, 18V is DC5525, not DC5521 as manual or the product description says here. It took me some time to realize that, since the DC5525 and DC5521 are visually indistinguishable, but yet they do not fit. I bought Chafon DC5521-to-MC4 adapter, hoping to use 18V as standard solar feed, and that didn't fit.Actually I found no DC5525 to MC4, or to SAE, or Shafon connector, or to any other solar industry standard that solar controllers would typically take. DC5525 does not seem to be used by solar industry at all.I had to buy DC5525 plugs separately. Cut off the DC5521 from the chafon mc4 adapter, and put the DC5525 on instead. It is an easy mod, assuming soldering iron is handy. However, custom DC5525 plugs are a nuisance. They are flimsy, prone to shorts and disassembly. Perhaps a better solution would be to buy 5525 pigtail with as big wire as possible, and try to mount MC4s directly on it. But usually 5525 is used with tiny wires, AWG22 or 24. I don't think it is possible to find something as durable as a regular solar cable there with 5525 on it.Note that one of the laptop adapters that come with this panel actually is DC5521 to DC5525 adapter, so it can be chain-plugged with DC5521, but i don't like that as a permanent solution at all. DC connections are too flimsy as they are, let alone adapted.* Another complaint of mine is again the choice of 18V plug type in the first place. Ok, regardless of DC5521 or 25, this type of connector is prone to disconnects (especially if there is some wire weight hanging on it) and degradation over the time. It seems to be pretty tight right now, but i am dubious about its long term performance. I don't think i will be easily service that in the future, since panel controller cover doesn't seem to come off without undoing the panel grommets holding it.Of course the longevity is the main concern here. I will update if I encounter problems of that type sooner than i hope for

80 Watts in a small fold up package. I tested with a meter after arrival and it performed very well.

Very good. Charges a battery quite quickly if in direct sunshine. I'm happy with this product.

Ce panneau délivre bien les 80W annoncé, avec une pleine exposition et un grand soleil. Ce qui est bien pour ce type de panneau pliable, et par rapport à ce qui est annoncé.J’ai mesuré la tension à 24,1V au maximum avec une pleine exposition vers le soleil, et 23,5V avec le soleil a 45°.J’ai mesuré l’ampèrage à 3,5A au maximum, la aussi avec une parfaite exposition et au heures de pointes. Avec le soleil à 45° j’ai mesuré 1,5A.Donc en pratique :Ce panneau en plein soleil parfaitement orienté peut délivrer 3,5A à une tension de 24V soit 84W.Avec soleil mal orienté (+ de 45°) et si le panneau reste à plat, il peut délivrer 1,5A à une tension de 23,5V, soit 35W. Donc très variable en fonction de l’inclinaison.Je recommande ce panneau qui délivre bien la puissance annoncée, il est bien fait, bien fini, dispose de prise usb, et peut être branché sur une power bank.Attention cependant si vous voulez charger des appareils qui fonctionne habituellement avec du 12V, ce n’est pas possible directement car le panneau délivre 24V.

Funciona de maravilla, he estado un mes y medio en la furgo y he podido cargar todos mis dispositivos sin problema, incluso cuando no brillaba mucho el Sol. Muy contenta con la compra.

Ich hab das Solarmodul deswegen gewählt, weil in der Beschreibung steht es stelle sich selbst auf die zu speisenden Stromabnehmer richtig ein. Stimmt wirklich! Leerlaufspannung gemessen 19 Volt bei Sonne um 12:00, dann einfach mal im Auto angestöpselt und wieder gemessen, siehe da - Spannung ca 12,5 bis 14,0 Volt je nachdem wie man das Modul zur Sonne dreht. Danach erstmal Härtetest, den Verteiler im Auto (an dem steckte auch das Solarmodul) vom Bordnetz abgekoppelt - und ich staunte nicht schlecht, Funkgerät, Kühlbox und kleiner Notebook (zuerst bei dem den Akku rausgenommen) liefen immer noch weiter. Also dürfte die Leistungsangabe stimmen. Jedenfalls alles in allem praktisch, funktioniert und besonders hervorzuheben: Vorinfos beim Verkäufer eingeholt, Antwort kam prompt nach kurzer Zeit. Nette Kommunikation, wenn auch nicht in perfektem Deutsch, was aber dem guten Service keinen Abbruch tut. Ich werde dieses Teil also auch für die zwei anderen Fahrzeuge anschaffen. Ich würd's empfehlen, auch zum Rumtragen (Berg gehen usw.) weil es leicht und wirklich klein zusammenlegbar ist. Auch die Autobatterie nachladen, wenn auch langsam, aber immerhin, nach 2 Stunden konnte ein Auto wieder starten - geht!

Mein Giaride Solar-Panel gibt bei vollem Sonnenlicht 23 Volt ab.Schon bei sehr wenig indirektem Licht und bei bedecktem Himmel gibt das Panel stabil Output ab.Was ich leider noch nicht geschafft habe ist einen Inverter für ein Balkon-Kraftwerk zu finden, der mit dieser relativ niedrigen Spannung startet.Daher verwende ich das Panel nur zum Laden meiner Anker-Powerbanken, sowohl über den USB2-Output (5 Volt mit 2 Ampere) als auch über ein MC4-Kabel (umgelötet) auf einen MC4-zu-USB-C Konverter mit ca. 43 Volt.Toll an diesem Panel ist das kleine Packmass und das Gewicht, ich würde es als sehr transportabel bezeichnen, man kann es meines Erachtens auf jeden Fall in einem Wanderrucksack verstauen.Was fehlt zu meinem Glück / warum nur 4 Sterne?Die Hersteller sollten sich bei so leistungsstarken Panels die Abnehmer überlegen.Niemand braucht ein 80 Watt Panel nur für USB2 mit 5 Volt und 2 Ampere.Ein USB-C Output bis mindestens 20 Volt muss meines Erachtens in der Zukunft zum Standard gehören.Und eine noch höhere Spannung als 23 Volt (spezifiziert sind 18 Volt) als Klinkenstecker-Output würde die Option eröffnen, einen Inverter anzusteuern.