Sienna Solar > Products > 10 - 50 Watt Solar Panels > 40W Solar Panel EnginStar 40 Watt Foldable Solar Panel for Portable Power Station w/QC3.0 USB Port for Phone Laptop 12-15V DC Output(10 Connectors)…
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40W Solar Panel EnginStar 40 Watt Foldable Solar Panel for Portable Power Station w/QC3.0 USB Port for Phone Laptop 12-15V DC Output(10 Connectors)…
MADE FOR SOLAR GENERATOR: EnginStar 40w solar panel comes with 10*DC adapters, compatible with most solar generators/portable power stations on the market. Perfect for outdoor life and unexpected power outages.
HIGHER CONVERSION EFFICIENCY: EnginStar 40W monocrystalline silicon solar panel provide conversion efficiency of 24%, higher than other conventional panels. The built-in smart chip intelligently identifies your device and maximizes its charging speed while protecting your devices from overloading.
FOLDABLE & KICKSTAND DESIGN: This 40 watt solar panel foldable only weighs 4.2lb( 1.9KG), and with a folded size of 13.3 x 11 x 2in, it’s convenient to carry it to wherever you go
IPX4 WATERPROOF AND FABRICATE WITH QUALITY FABRIC: 40 watt solar panel for camping is water-resistant, and the pouch is made with quality polyester fabric, you don’t need to worry about the bad weather condition
PACKAGE AND CUSTOMER SERVICE: 1* 40 Watt Foldable Solar Panel; 1* 10-in-1 Connect Cable; 1* DC-to-DC Cable; 1*User Manual. We offer 7*24 rapid customer service, 30 days money-back guarantee, lifetime technical support
Additional information
Brand
EnginStar
Material
Polyester
Product Dimensions
41.2"L x 13.6"W x 2"H
Item Weight
4.2 pounds
Efficiency
High Efficiency
Connector Type
Usb
Folded Size
13.3 x 11 x 2 inch
AC Adapter Current
2.6 Amps
Maximum Voltage
12 Volts
Maximum Power
40 Watts
Manufacturer
EnginStar
Item model number
S40
13 reviews for 40W Solar Panel EnginStar 40 Watt Foldable Solar Panel for Portable Power Station w/QC3.0 USB Port for Phone Laptop 12-15V DC Output(10 Connectors)…
Rated 5 out of 5
Amazon Customer –
Loved this this. Was out for 9 days in colorado. Had 8 degree nights, and used this to charge up my battery pack for my CPAP. Setup is a breeze. Cloth legs are a little flimsy, but you have to sacrifice something if you want ultralight weight, and this is ultralight. The only issue I had was the connections and display were on the bottom of the convertor, so you cant see the plug ins for the cables or the status indicators. Plug the cable in, THEN plug in your battery. Charged a battery that kept a CPAP running all night way before nightfall, and still had time to charge other devices.
Rated 5 out of 5
Crispeto –
It works fine. The most input I achieved was 22 watts of sun according to the wattage meter in direct sunlight and I achieved 8 watts in indirect sunlight. It’s pretty cool for the price. I’m confident it will be fine in a emergency but I wouldn’t count on it replacing your power grid. This is a good value for the money but overated in the spec’s.
Nice package. Folds out to 4 sub-panels and has 3 “kick stands” to make it free standing. Comes with a wide variety of barrel connector adapters and a second “M4” style cable that can be.used to connect more panels in parallel. In direct sun it easily maxed out my Jackery 240 charge input (60 watts). It all folds up into a neat suitcase style carrying configuration, which makes transport easy. Very happy with this one!
First time ever playing with solar.l, I’m doing trial to learn a month before we go camping off grid. These are 40watt solar panels. Super super light to carry, felt like a basic thin notebook weight without paper. It didn’t come with a battery. But I bought an enginstar mini power bank and plugged it into it right away and sat it behind the panels and it’s at 30w charge so far at 9am. When I unplugged the panels from the battery.. i tested my cell phone by using the usb on there battery… I was able to get charge to my cell. So my battery is only at one bar.. so I will try this out all day today and see how long it really takes to get my battery to full bars using sun panels energy..
Rated 5 out of 5
Amazon Customer –
I have only gotten to use this product a couple of times so far. Took it on a camping trip and used to keep our battery stations all charged up. It did well. I didn’t get a chance to really check charge rate because our battery packs never really got below 80%. But this solar panel certainly did what we expected it to do.
It is fairly easy to set up, although the “legs” can be a little bit of a pain. But I leaned it up against one of the bigger coolers for additional support. It folds up nicely and is small enough to fit in most storage locations.
Overall, I’m happy with it so far.
Rated 4 out of 5
Henry Leinhos –
My expectations: A solar panel strong enough to charge my small solar generators and to charge my families phones and iPads. And this does it all! The good: This panel has been tested to charge my phone, iPad Air 2019, and my 280WH solar generator all at the same time. The bad: The weight makes it so I am hesitant to take it camping. Instead I will take smaller solar panels camping and save this for my Solar generators. Overall final say: It works great for what it does and if weight is not such a factor you will be happy you purchased it. It can charge your car battery with the attached cables. And you can charge solar generators (I have 2 small ones for now). But unless you need your solar generators for camping, I would suggest you use a smaller solar panel for your camping power needs
Rated 5 out of 5
Pastor Sasquatch –
I got this 100 watt solar panel for an amazing price after coupon. My 360 watt power station has an mppt limit of 60 watts. When I plug it into an outlet with the power cord it comes with I get around 55 watts. With this solar panel I get 58.8. It’s actually charging faster than my regular outlet! I went from 20% to 100% in about three hours. I’m thrilled with that! It’s such great quality. It’s super sturdy and stands up great. I angled it the best I could into the sun and it did great. I’m excited to try charging my iphone and ipad. It folds up perfectly into a briefcase style carry and has a great handle to carry it with. If you’re even considering this, don’t hesitate, after the coupon and additional discount at checkout, it’s by far the cheapest 100w solar panel with this high of quality I could find. One of my better purchases!
Rated 3 out of 5
Charlie –
The EnginStar 100W Solar Panel has gone along on a couple camping trips and has also been used here at home.
Likes: – It packed pretty well. – The included grommets were handy for attaching to a table during windy conditions. – The clips seem to hold the unit closed well. – The kickstands are sturdy. – USB charging is speedy.
Dislikes: – Unfortunately the absolute highest charging power has been 58W. The panels were clean and aligned directly up at noon while the sun was overhead. This measurement was with a Jackery Explorer 500. – Fairly heavy
Only a couple reviewers have seen power numbers close to the rated 100W. Others are closer to 50W. I’m not sure if this is a quality control issue or the unit is overrated. Either way you might want to look elsewhere if you’re hoping for >75W of power.
Amazon Customer –
Loved this this. Was out for 9 days in colorado. Had 8 degree nights, and used this to charge up my battery pack for my CPAP. Setup is a breeze. Cloth legs are a little flimsy, but you have to sacrifice something if you want ultralight weight, and this is ultralight. The only issue I had was the connections and display were on the bottom of the convertor, so you cant see the plug ins for the cables or the status indicators. Plug the cable in, THEN plug in your battery. Charged a battery that kept a CPAP running all night way before nightfall, and still had time to charge other devices.
Crispeto –
It works fine. The most input I achieved was 22 watts of sun according to the wattage meter in direct sunlight and I achieved 8 watts in indirect sunlight. It’s pretty cool for the price. I’m confident it will be fine in a emergency but I wouldn’t count on it replacing your power grid. This is a good value for the money but overated in the spec’s.
Rick W. –
晴れた日に正しく太陽に向ければ、下記ポータブルバッテリーで、実質60Wで充電できることを確認しました。
Anker PowerHouse II 800 (ポータブル電源 大容量 216,000mAh / 778Wh)【純正弦波 AC500W(瞬間最大1,000W) / 11台同時に充給電 / 合計最大出力770W / ◇PSE技術基準適合】
購入時は、約20000円でしたがキャンペーンで13600円で購入しましたが、2021/04/21現在は、13600円で販売されています。もともと13600円だったのかと思うと、価格設定という意味であまり信用できる会社ではなさそうです。
ごにあ –
猛暑の中キャンプで突然充電出来なくなりました。
帰宅後ﾃｽﾀ-にて確認、アース側が通電してなく間に合わせにリード線を半田付け使用
AmazonにてDCプラグを購入しました。
Henry Leinhos –
Nice package. Folds out to 4 sub-panels and has 3 “kick stands” to make it free standing. Comes with a wide variety of barrel connector adapters and a second “M4” style cable that can be.used to connect more panels in parallel. In direct sun it easily maxed out my Jackery 240 charge input (60 watts). It all folds up into a neat suitcase style carrying configuration, which makes transport easy. Very happy with this one!
“やなぎ。” –
災害時の停電対策として購入。お手頃の値段と100W発電で考えると魅力的なものだと思います。
重さは想像以上。
でも折り畳み式で収納しやすいのでまぁ許す。使ってみたら充電が早いとは言えないが、ＵＳＢ（タイプＣ）に対応でタブレットと携帯充電が出来て、今の所は満足です。
Mike Mike –
Enginstar ポータブル電源 R300 大容量 110000mAH/407Whの充電用に購入しました。
自然災害も増えてきているので万が一の時に使用できればと思い。
10年前くらいから粗悪なソーラーパネル製品がでて新しいもの好きなので購入して後悔ばかりしていました。
しかしながら製品の進歩は凄いもので、ポータブル電源への充電もしっかりでています。
届いた時には意外と小さいなと思ったのですが、箱を開けて広げたら大きかったです。
なので多少重さはあります。
真夏の駐車場に広げておくと充電量(？)60wくらい表示され、10時から15時くらいまで放置していたらポータブル電源のバッテリーが50%からほぼ100%まで充電出来てました。
大して調べないで買ったのですが、ポータブル電源への充電だけでなく、直接USBを繋げて電源供給出来る？っぽい感じがするのでまた今度試そうと思います。
あとは耐久性がどれくらい持つか、しばらく使ってまたレビュー更新しようと思います。
genpapa –
キチンと角度を合わせれば、晴れた昼間は60ワット位で充電するようです。雨には濡らさないほうが良さそうです。
Pastor Sasquatch –
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First time ever playing with solar.l, I’m doing trial to learn a month before we go camping off grid. These are 40watt solar panels. Super super light to carry, felt like a basic thin notebook weight without paper. It didn’t come with a battery. But I bought an enginstar mini power bank and plugged it into it right away and sat it behind the panels and it’s at 30w charge so far at 9am. When I unplugged the panels from the battery.. i tested my cell phone by using the usb on there battery… I was able to get charge to my cell. So my battery is only at one bar.. so I will try this out all day today and see how long it really takes to get my battery to full bars using sun panels energy..
Amazon Customer –
I have only gotten to use this product a couple of times so far. Took it on a camping trip and used to keep our battery stations all charged up. It did well. I didn’t get a chance to really check charge rate because our battery packs never really got below 80%. But this solar panel certainly did what we expected it to do.
It is fairly easy to set up, although the “legs” can be a little bit of a pain. But I leaned it up against one of the bigger coolers for additional support. It folds up nicely and is small enough to fit in most storage locations.
Overall, I’m happy with it so far.
Henry Leinhos –
My expectations:
A solar panel strong enough to charge my small solar generators and to charge my families phones and iPads. And this does it all!
The good:
This panel has been tested to charge my phone, iPad Air 2019, and my 280WH solar generator all at the same time.
The bad:
The weight makes it so I am hesitant to take it camping. Instead I will take smaller solar panels camping and save this for my Solar generators.
Overall final say:
It works great for what it does and if weight is not such a factor you will be happy you purchased it.
It can charge your car battery with the attached cables. And you can charge solar generators (I have 2 small ones for now). But unless you need your solar generators for camping, I would suggest you use a smaller solar panel for your camping power needs
Pastor Sasquatch –
I got this 100 watt solar panel for an amazing price after coupon. My 360 watt power station has an mppt limit of 60 watts. When I plug it into an outlet with the power cord it comes with I get around 55 watts. With this solar panel I get 58.8. It’s actually charging faster than my regular outlet! I went from 20% to 100% in about three hours. I’m thrilled with that! It’s such great quality. It’s super sturdy and stands up great. I angled it the best I could into the sun and it did great. I’m excited to try charging my iphone and ipad. It folds up perfectly into a briefcase style carry and has a great handle to carry it with. If you’re even considering this, don’t hesitate, after the coupon and additional discount at checkout, it’s by far the cheapest 100w solar panel with this high of quality I could find. One of my better purchases!
Charlie –
The EnginStar 100W Solar Panel has gone along on a couple camping trips and has also been used here at home.
Likes:
– It packed pretty well.
– The included grommets were handy for attaching to a table during windy conditions.
– The clips seem to hold the unit closed well.
– The kickstands are sturdy.
– USB charging is speedy.
Dislikes:
– Unfortunately the absolute highest charging power has been 58W. The panels were clean and aligned directly up at noon while the sun was overhead. This measurement was with a Jackery Explorer 500.
– Fairly heavy
Only a couple reviewers have seen power numbers close to the rated 100W. Others are closer to 50W. I’m not sure if this is a quality control issue or the unit is overrated. Either way you might want to look elsewhere if you’re hoping for >75W of power.