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Sold by: EF ECOFLOW-US
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EF ECOFLOW 220Watt Bifacial Foldable Solar Panel, Complete with Adjustable Kickstand, Waterproof IP68 & Durable for Off The Grid Living

4.5 4.5 out of 5 stars 2,237 ratings

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220W SOLAR PANEL

Purchase options and add-ons

Brand EF ECOFLOW
Material Tempered Glass
Product Dimensions 72"L x 32.3"W x 1"H
Item Weight 20.9 Pounds
Efficiency 23%

About this item

  • [Bifacial Design] Charge your portable power station faster with this two in one solar panel. With a 220W front side and a 155W rear side for ambient light, you can gain an extra 5-25% solar energy, depending on the type of surface you put it on.
  • [Extremely Portable] The EcoFlow 220W Bifacial Solar panel is foldable, compact and weighs just 9.5kg (20.9lbs). Easy to pick up and carry with you, it’s perfect for charging where mains power is unavailable.
  • [Weather Proof] The EcoFlow 220W Bifacial Solar Panel is built to withstand mother nature. It has a thin, one-piece tempered glass design making it 5x more durable than comparable solar panels. It comes complete with an IP68 Waterproof rating meaning its both water and dust resistant.
  • [Optimal Efficiency] When used with an EcoFlow power station, the 220W Bifacial Solar Panel is geared to produce maximum efficiency. The solar panel has a high energy conversion rate of 22%-23% too.
  • [Adjustable Kickstand Case] The EcoFlow Bifacial Solar Panel comes with an adjustable kickstand case. This protects the solar panel on the move while doubling up into an adjustable kickstand. It also allows you to position the solar panel for optimal sunlight intake and lets you chain several solar panels together.

Customer ratings by feature

Weatherproof
4.5 4.5
Portability
4.4 4.4
Charging power
4.2 4.2
Light weight
4.2 4.2

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EF ECOFLOW 220Watt Bifacial Foldable Solar Panel, Complete with Adjustable Kickstand, Waterproof IP68 & Durable for Off The Grid Living
EF ECOFLOW 220Watt Bifacial Foldable Solar Panel, Complete with Adjustable Kickstand, Waterproof IP68 & Durable for Off The Grid Living
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Price$549.00$399.99-14% $599.00
List:$699.00
-20% $279.99
List:$349.99
-33% $159.99
List:$239.99
Delivery
Get it as soon as Monday, Mar 25
Get it as soon as Monday, Mar 25
Get it as soon as Monday, Mar 25
Get it as soon as Monday, Mar 25
Get it as soon as Monday, Mar 25
Customer Ratings
Light weight
4.2
4.7
2.7
4.5
4.2
Value for money
3.8
4.2
4.4
4.6
3.9
Portability
4.4
4.5
3.9
4.4
Charging power
4.2
4.0
4.0
3.7
Weatherproof
4.5
4.2
4.6
Sold By
ECOFLOW Direct
ELECAENTA
ALLPOWERSDirect
VCUTECH
Baldr Inc
connector type
XT60, XT60 to Anderson/ 8020, XT60 to Solar Connector
MC4
MC4
Usb
material
Tempered Glass
Monocrystalline Silicon, ETFE, Rubber, Oxford
Etfe
ETFE
Monocrystalline Silicon
wattage
220 watts
400 watts
200 watts
120 watts
weight
20.9 pounds
10.8 pounds
40.8 pounds
15 pounds
4.25 pounds

Product Description

solar panel
SOLAR PANEL
SOLAR PANEL
SOLAR PANEL

EcoFlow Solar Panels Specification

solar panels

220W Portable Solar Panel

solar panels

110W Portable Solar Panel

solar panels

160W Portable Solar Panel

solar panels

400W Portable Solar Panel

solar panels

2*100W Rigid Solar Panels

100W FLEXIBLE SOLAR PANEL

100W Flexible Solar Panel

solar panels

2*400W Rigid Solar Panels

Customer Reviews
4.5 out of 5 stars
2,237
4.5 out of 5 stars
2,237
4.5 out of 5 stars
2,237
4.5 out of 5 stars
2,237
4.6 out of 5 stars
279
4.6 out of 5 stars
279
4.6 out of 5 stars
279
Solar Output
220W 110W 160W 400W 200W 100W 800W
Physical Structure
Foldable with Carry Case Foldable with Carry Case Foldable with Carry Case Foldable with Carry Case Rigid Frame Flexible Rigid Frame
Dimensions
32.3*72.2*1.0 in 20.2*62.5*1.0 in 26.8*61.8*1.0 in 41.7*93.1*1.0 in 38.6*23.1*1.2 in 41.5*24.1*1.0 in 67.8*44.6*1.38 in
Weight
20.9lbs 13.2 lbs 15.4 lbs 35.3lbs 13.7 lbs 5.1 lbs 48.1 lbs
Maximum Operating Voltage
18.4V 18.5V 18.2V 41V 17.1 V 17.1 V 31.00V
Maximum Operating Current
12.0A 6.0A 8.8A 9.8A 5.9 A 5.9 A 12.90A
Monocrystalline silicon
IP68 Waterproof

From the brand

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Warranty & Support

Product Warranty: For warranty information about this product, please click here

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EF ECOFLOW 220Watt Bifacial Foldable Solar Panel, Complete with Adjustable Kickstand, Waterproof IP68 & Durable for Off The Grid Living


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Customer reviews

4.5 out of 5 stars
4.5 out of 5
2,237 global ratings

Customers say

Customers like the quality, appearance and performance of the solar panel. For example, they mention it's rugged, works well and is well designed. That said, opinions are mixed on charging, ease of use, power, value, and portability.

AI-generated from the text of customer reviews

127 customers mention90 positive37 negative

Customers like the quality of the solar panel. They say it's well made, solid, and contributes to a more resilient and environmentally conscious future. Customers also mention that the portable panel is fantastic for south Florida and gets 350 watts by just laying them flat.

"...The panel is portable but it does weigh a little bit due to its robust construction...." Read more

"...Still I only got 197 watts. Thinking the panel was defective, I called the support number. She led me to turn on and off several features on the app...." Read more

"...that not only eases the immediate challenges but also contributes to a more resilient and environmentally conscious future." Read more

"What I don't like - I don't like using the case as the stand. It isn't flimsy, just needs some further refinement...." Read more

122 customers mention90 positive32 negative

Customers like the performance of the solar panel. For example, they mention it works well, is well constructed, and flawlessly. Some say the panels and case work well, and are easy to use. That said, most are happy with their purchase and recommend it to others.

"...So far I am very pleased with its performance and I think it is only going to get better...." Read more

"...power sources fuel dependencies or technical issues, the solar panel kept performing, reducing our carbon footprint and providing a sense of..." Read more

"...The panels got so hot, they melted the paint on my car! The stand was garbage, as it is very thin compared to the expanse of the panels, so I had..." Read more

"...The integrated kickstand has worked very well for me, and this is a bonus: I don't have to use a rigid panel or construct some wacky stand out of PVC..." Read more

45 customers mention39 positive6 negative

Customers like the appearance of the solar panel. For example, they say it looks very well designed, it's impressive, and it has a nice carry case.

"...This has been complicated by poor or nonexistent documentation. Nice equipment but one needs to learn how best to use it - sometimes it's the..." Read more

"This solar panel looks nice and we will see how good it works but I have read many reviews and they were good ones..." Read more

"I love that this panel is portable and looks great...." Read more

"...My new panel looked great, so I'm changing my rating up to 5 stars for seller/amazon responsiveness and the fact that the damaged label seems like a..." Read more

106 customers mention69 positive37 negative

Customers are mixed about the portability of the solar panel. Some mention it has excellent portability and low weight, making it easy to set up and transport for camping. However, others say that the set is heavy and the panel does weigh a little bit.

"...The panel is portable but it does weigh a little bit due to its robust construction...." Read more

"Good construction, but heavier than I expected." Read more

"...Its compact and lightweight design made it easy to set up, even in adverse weather conditions...." Read more

"...A-Frame I will be using these on and they should work and stow very nicely. The panels are very well built and sturdy...." Read more

65 customers mention44 positive21 negative

Customers are mixed about the ease of use of the solar panel. Some mention that it's very easy to set up and use, with an outstanding design that allows it to be set up quickly. However, other customers say that the carry-case kick stand is cumbersome, awkward to use, and difficult to set and take down.

"...Its compact and lightweight design made it easy to set up, even in adverse weather conditions...." Read more

"...The foldable design allows it to be set up and put away quickly and uses up a much smaller amount of space than rigid panels that are meant to be..." Read more

"...As others have said, the bag as stand works, but it is kind of awkward and floppy, but it does work." Read more

"Very easy to setup and use. Works well and charges my ecoflow river in about 3 hrs of good sunshine...." Read more

60 customers mention41 positive19 negative

Customers are mixed about the power of the solar panel. Some mention that it provides good power generation, while others say that it only pulls in 70% watt input.

"...It became a reliable source of power for charging phones, operating small appliances, and running emergency lights...." Read more

"...out of this panel so I was disappointed to find that I was only getting 107 watts. Perplexed, I tried many configurations and angles...." Read more

"...However, I still came away impressed because it had the potential to increase solar output for nearly the same price as Goal Zero's Nomad 200 or two..." Read more

"...Below are pros / cons:Pros:Unmatched power delivery; In my tests I got 200w in *ideal* conditions...." Read more

50 customers mention27 positive23 negative

Customers have mixed opinions about the charging of the solar panel. Some mention that the charging power is good, it recharges quickly, and is impressed by the solar charging efficiency. Others however, are disappointed in the charging, saying that it won't start charging until the panel is putting out a light.

"...The panels does a good job of charging my Delta Pro on most days and even charges a bit on hazy days, but of course not as much...." Read more

"...It appears that the River 2 Pro won't start charging until the panel is putting out a certain voltage or current, and if it not enough, the River 2..." Read more

"...to position it for maximum sunlight exposure, ensuring a consistent supply of electricity...." Read more

"...Was at 53% a total of 26% gain in 8.5 hours. Not good enough to charge a Delta Pro in 8 hours, 1 day of charging. Need more panels/ power." Read more

50 customers mention32 positive18 negative

Customers are mixed about the value of the solar panel. Some mention that it's worth the purchase, a good buy for a quality product, and overdelivers. Others say that it is relatively expensive and not worth the money.

"...Excellent pricing and value-- Costs slightly more than two Jackery SolarSaga 100 (to get 200W) or Goal Zero Nomad 200..." Read more

"...It's not exactly cheap, but then you do get what you pay for and this is worth the price." Read more

"...The price point is definitely dialed in as well. The panel picks up plenty of power for its size and is VERY rigid and durable. Bravo, Ecoflow!!!!!" Read more

"Great product" Read more

Lighter, cheaper, more efficient than Goal Zero Nomad 200. MUST for high-capacity batteries
5 Stars
Lighter, cheaper, more efficient than Goal Zero Nomad 200. MUST for high-capacity batteries
Over a year ago, I purchased the Goal Zero Nomad 200 for its large-capacity, 4-pane solar panel that folded down to a 1/4 of its full size. That made it relatively compact, though at 22 lbs it was not exactly lightweight. Where it stood out was its 200W of monocrystalline charging capacity, and when used in combination with other Nomads (or the company's more rigid Boulder panels), quite a large amount of electricity could be produced to quickly charge a battery power station with, such as the Goal Zero Yeti 1500x that can take a whopping 600W!I had been a fan of Goal Zero's products for a few years now, but recently, one of my good Boondocking friends asked me to take a look at the EcoFlow Delta Pro power station for our mountain vacation home. That monster was so packed with features, it literally left me in awe and quickly added the company to the top of my favorite power station brands alongside Goal Zero and Jackery. Fast-forward two months later, and I thought to also take a look at something interesting: "Bifacial solar panel". What the heck is that?BIFACIAL SOLAR PANELUp until recently, all of the solar panels I had tested were monofacial -- that is, only ONE face captured the sun's energy while the other side did not. Bifacial covers a panel with cells on BOTH faces (front and back) to maximize solar energy production AND use up less space, but tends to cost more than the 1-sided products. Imagine my surprise when EcoFlow's 220W Bifacial Solar Panel only costed $50 more than than Goal Zero's monofacial Nomad 200... So, how did both compare?ANALYSISEcoFlow's 220W Bifacial Solar Panel amazed me in a number of ways. According to the marketing material, the front-facing side could produce up to 220W of energy and the back up to 155W for a total of 375W. Reality was nowhere close to that: the most I was able to capture in testing was 198W on a bright, sunny, California day on white-painted surfaces and a MPPT controller-equipped Goal Zero Yeti 1500x. The EcoFlow Delta Pro only reached 184W a few minutes prior. Are those numbers good? Yes, absolutely!Monocrystalline solar panels generally lose about 20-25% of efficiency from their stated rating due to loss from solar conversion. The EcoFlow 220W's front face would, therefore, produce only up to 176W on a perfect, sunny day. Yet, my tests captured as much as 198W -- where did that extra 22W come from? Its 155W backside through sunlight reflected by the ground and surrounding area. The back face actually captured roughly 14% of its capacity! Moving the panel to my grassy backyard, however, did not add much: a mere 5W-10W.Was the small increase worth it? That depends. Any additional amount of power can make a difference in certain situations and living arrangements, especially when one was in the middle of nowhere. Whether that augmentation is worth any extra cost, however, is not black and white. The question ultimately comes down to how much the back side could consistently add to the total output, and that, my friend, depends on the surface and surrounding area.The more sunlight is reflected, the more the backside of bifacial solar panels can capture, though it could never reach the 75-80% efficiency the front face would. A dark, non-reflective area would hardly give any extra watts, but a mirrored room would produce a lot more -- especially one that had concave reflectors aimed squarely at the back panels without burning a hole through them. A 22W increase required me to place the panels on and in an area covered in bright white to maximize the amount of reflected sunlight. That kind of exposure is not something I normally come across in my travels, like camp grounds or forests. Even rocky places like Yosemite National Park that is dominated by granite would not provide that reflective power unless the panels were deployed on snow. Alas, if there is snow, the sun is not as strong as in the summer, but that is precisely where bifacial solar panels could make a small amount of difference.CAUTION: Never leave the power station out in the sun! Keep it shaded to minimize the risk of overheating AND use a long cable to connect it to the solar panel.Power aside, the EcoFlow 220W costs nearly the same as the Goal Zero Nomad 200W, but has that additional 155W backside panel thrown in. That makes the EcoFlow a better deal purely from the amount of potential power produced. It also weighs about 1 lb less for nearly the same, overall dimensions.Where the EcoFlow stands out is its IP68 water rating that allows it to be submerged in 5' (1.5m) of freshwater for up to 30 minutes. That means that water could be spilled on it without any damage. It could theoretically also be used in rain, but that idea sounds absolutely ridiculous: does the sun shine strong enough, if at all, in that kind of weather to make any difference? Still, not many consumer manufacturers offer IP68 waterproofing.Both the Goal Zero Nomad 200 and the EcoFlow 220W are coated with tempered glass for better protection against the elements, but the latter uses the MC4 solar cable type connection. I much prefer the Anderson Power Pole (APP) port over MC4 for its ease-of-use, but do not fret: there are adapter cables available that convert between both types. My favorite, lower-cost brand of adapters is iGreely. What this also means is that this EcoFlow solar panel CAN be used with other manufacturers' power stations, including Jackery, Goal Zero, and Bluetti. Check their manuals for maximum input specifications.CAUTION: You should almost NEVER connect multiple solar panels to a battery in series. I generally recommend having them plugged in parallel.Kickstands were built-in to both EcoFlow and Goal Zero solar panels, though the former took a bit longer to set up. Its design reminded me of tablet cases that flip their cover back to prop up the device. Both allowed the panels to be angled at an optimal 45 degrees towards the sun, but neither of them could withstand strong gusts of winds without securing them down.Multiple grommet holes could be found around the edges of both manufacturers' solar panels to accommodate a variety of mounting configurations like off the side of a truck or on rope.Overall, the ability to get up to an actual 198W of solar charging from a single product made the EcoFlow panel portable and convenient, though its 21lb weight could feel a bit heavy to lug around. It took about the same space as a 100W Jackery SolarSaga 100 and the Goal Zero Nomad 200. For charging a high-capacity battery like the EcoFlow Delta Pro (3,600Wh) or Goal Zero Yeti 1500x, however, the EcoFlow 220W Bifacial Solar Panel is an absolute must if you want to maximize its input capability.Note: Goal Zero renamed its Anderson Powerpole (APP) ports in Nov 2020 to High Power Port (HPP) to avoid trademark infringement with its inventor: Anderson Power Products. This is only a name change as the connector works the same way as before. For the purpose of avoiding confusion, I will interchangeably refer to the port as HPP or APP.PROS- Bifacial panels to allow 5-25% additional energy production- Monocrystalline solar panels provide VERY efficient charging at a consumer-friendly price point-- Most panels should expect between 70-80% charging of the stated wattage in near-perfect, sunny conditions-- Monocrystalline generally has a lifespan of 25-30 years, after which efficiency starts to drop- Large-capacity solar charging of 220W (plus up to 40W extra from the backpanels) in a single product negates the need to bring two 100W solar panels-- Can provide higher maximum charging output to compatible battery power stations--- Example: Goal Zero Yeti 1500x power station can take 4 solar panels with a HPP-to-HPP 4x Combiner Cable---- Keeping in mind that there is a roughly 20% solar conversion efficiency loss and that power stations can accept a limited number of panels:----- (4) 200W panels = 640W (4 x 200W - 20%). Provides full 600W power to Yeti 1500x----- (4) 100W panels = 320W (4 x 100W - 20%). Does not maximize Yeti 1500x's charging capability-- Saves on storage space to have a single product instead of two-- Faster to set up and put away than with multiple solar panels- Foldable design makes the panel portable/compact, easy to stow, and protected from dust- Excellent pricing and value-- Costs slightly more than two Jackery SolarSaga 100 (to get 200W) or Goal Zero Nomad 200- Built-in kickstand (via its briefcase) to help prop the panels towards the sun at a 45 degree angle for optimal exposure- Multiple grommet loops around the edges accommodate a variety of mounting configurations-- Side of truck, along a rope, etc.- IP68 waterproof rating for brief, 30-minute submersion in up to 5' of freshwater or rain- Tempered glass layering makes solar panels stronger- Weight: 21 lbs-- Lighter than Goal Zero's Boulder 200 (42 lbs) panels, but similar to the Nomad 200 (22 lbs)-- Heavier than TWO (to get 200W) Jackery SolarSaga 100 (5.5 lbs each)- Daisy-chainable-- Multiple solar panels can be linked together in PARALLEL (NOT in a SERIES) for even more output (See TIPS section)CONS- Back side of panels heavily depend on the amount of sunlight REFLECTED by the surrounding area to be useful-- A dark, non-reflective surface or environment will hardly add any extra power, for example- Sometimes frustrating to set up on sand (ie. beach)-- Common issue with foldable solar panels- Potentially a single point of failure-- Example: One 220W vs two 100W panels--- If the 220W fails, you are left with no solar charging. If one of the 100W fails, you still have the second to charge with- Weight: 21 lbs-- Heavier than 2 Jackery SolarSaga 100 (5.5 lbs each) for the similar 200W output- Flexible body can potentially cause the panels to snap and break- More expensive than:-- Lesser known brands, such as Rockpals/Paxcess and Suaoki-- Non-foldable, rigid panels like Goal Zero Boulder 200 and Renogy- No built-in USB-C or USB-C PD (Power Delivery) charging port, but that is also what makes the panels IP68 waterproof- No built-in battery to store some of the charge generated by the panelTIPS/NOTES- Panel lifespan: Panels generally die/become inefficient between 25-30 years-- They may last longer, but would produce less energy- Solar panels work best outdoor under full sun exposure-- Although the panels will work under the shade or behind windows, charging efficiency is greatly diminished--- That is ESPECIALLY true for the backside of bifacial solar panels-- Panels will STILL charge under cloudy conditions. So, keep the panels out even if you do not see the sun-- Operating temperature range: 14F to 149F (-10C to 65C)-- ONLY the solar panels can (and should) be directly under the sun while charging a battery power station--- Keep the power station in the shade to prevent overheating- ALL panels must be uncovered to generate a charge-- Do not completely cover one or more panels or the charging will stop- To maintain solar efficiency, the panels should be kept clean-- Remove dust with a soft brush and wipe with a damp (NOT wet) cloth-- Any residue, such as tree sap, should be removed as soon as possible-- Do not submerge the panel under water even though it is capable of doing so for up to 30 minutes in 5' of depth-- Panels will work longer if they are kept away from water altogether- Do NOT bend the panels more than 30 degrees or risk breaking them!- Keep the panels away from fire and heatersSOLAR PANEL - WARNINGSome power stations can be charged with one or more solar panels. There are SOME PRECAUTIONS you must take to minimize battery damage and/or injury to life/property:- Never exceed the maximum Voltage (V) or Amperage (A) of a power station’s charging port- If you want to use 2+ solar panels to charge faster:-- Do not mix them with different V or A as the output might get reduced (less energy generated)-- Do not daisy-chain them in sequence/series as that can exceed the power station’s maximum V or A--- Always connect them in PARALLEL with a Y-branch or Combiner cableCALCULATIONSThe below calculations are rough ESTIMATES as conditions, battery and solar panel quality, and age can vary. Battery storage capacity is measured in Wh, and power output is in W (Watts).CHARGE TIME WITH SOLAR- Calc: Hours to charge battery = Battery capacity (Wh) / (Panel Wattage x [0.5 or 0.75])-- In a perfect lab environment, solar panels charge at the listed wattage-- Expect to only receive 50-75% on a good, sunny day (ie. 75W – 113W for a 150W panel), depending on panel’s age, component quality, and weather- 200W solar panel-- EcoFlow Delta Pro: As fast as 13.5 hours [3600Wh / 200W x 0.75)]-- Goal Zero Yeti 1500x: As fast as 10.1 hours [1516 Wh / (200W x 0.75)]-- Goal Zero Yeti 500x: As fast as 3.4 hours [505 Wh / (200W x 0.75)]-- Jackery Explorer 1000: As fast as 6.7 hours [1000 Wh / (200W x 0.75)]- Tips-- Keep charging even when overcast as the panels will STILL collect energy-- Underproduction: If a 200W panel is not making enough (ie. only 50W) due to bad conditions, adding extra ones (ie. two more 200W) can generate a higher, combined output (ie. 50W + 110W from the two panels = 160W total)-- Overproduction: If the panels make more (ie. 400W) than the maximum the power station charge port can take (ie. 120W), only the max (ie. 120W) will go throughWATTS USED/PRODUCED BY A DEVICE- Calc: Watts used or produced by device = Voltage x Amperage- Vacuum with 120V @ 9.5A uses 1,140W- Solar panel with 12V @ 10A can produce up to 120WTIME TO CHARGE A DEVICE- Calc: Hours to charge device = Device’s battery capacity (Wh) / Input Wattage- Laptop with 200Wh battery, 200W solar panel, and 75% solar conversion loss: As fast as 1.4 hrs [200 Wh / (200W x 0.75)]USE WITH OTHER BRANDSThe EcoFlow 220W solar panel can be used with other manufacturers' power stations, including Jackery, Goal Zero, and Bluetti, as long as their rated input are not exceeded, and the appropriate adapter cable is used (ie. MC4-to-APP or MC4-to-8mm).DIFFERENT SOLAR PANELSAs long as the solar panels from different brands or wattage produce the same VOLTAGE, you will be able to safely use them together. The key here is to connect them in PARALLEL. If the panels are NOT the same voltage, then the panel with the highest volts will be used. For example, I was able to connect these four panels with the Goal Zero Yeti 1500x:- Goal Zero Nomad 200 / Jackery SolarSaga 100W / Paxcess Rockman 120W / Suaoki 160WOn a cloudy November day, the input values were:- 63W = Nomad only- 212W = Nomad + SolarSaga- 231W = Nomad + SolarSaga + Rockman- 262W = Nomad + SolarSaga + Rockman + SuaokiI expected the panels to produce significantly more during the summer (to as much as 430W combined), though I never repeated the test.CONCLUSIONThe EcoFlow 220W Bifacial Solar Panel sparked my curiosity on how much better output a second set of panels built into a single product could provide. It did not wow me and required a specific, reflection-optimized environment to add any meaningful energy to the primary, front-facing panels. However, I still came away impressed because it had the potential to increase solar output for nearly the same price as Goal Zero's Nomad 200 or two Jackery SolarSaga 100.Higher-capacity solar panels like this EcoFlow are essential to charging large power stations (like the EcoFlow Delta Pro or Max, Goal Zero Yeti 1500x, or Jackery Explorer 1000), especially if those batteries only accept a limited number of connected panels. The foldable design allows it to be set up and put away quickly and uses up a much smaller amount of space than rigid panels that are meant to be permanently mounted. However, it also makes it more susceptible to damage if the panels are bent at an angle of more than 30 degrees.Overall, I was very impressed by the solar charging efficiency the EcoFlow 220W provided to both the EcoFlow Delta Pro and Goal Zero Yeti 1500x batteries. The panel's 155W backside -- when deployed in an ideal environment -- is a welcome icing on the cake to provide just a little extra charging juice for the traveler or home prepper.
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Top reviews from the United States

Reviewed in the United States on December 8, 2023
Size: 400W SOLAR PANELVerified Purchase
29 people found this helpful
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Reviewed in the United States on October 20, 2023
Size: 220W SOLAR PANELVerified Purchase
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Reviewed in the United States on February 25, 2024
Size: 220W SOLAR PANELVerified Purchase
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5.0 out of 5 stars Crack in right panel
Reviewed in the United States on February 25, 2024
SECOND UPDATE- Ecoflow handled the cracked unit after accepting the return, they shipped me a new unit. It was an easy process and they took care of me. It’s great to know the company stands by their product!!

EDIT UPDATE— Ecoflow returned my email on the return fairly quickly, but they would not send my replacement unit until they received the broken one. Even after getting the tracking number. They received the unit on Monday and they still have not shipped a new one to me. Great that they are responsive but so far, not feeling like it’s a priority to get me my $600 solar panel. Hopefully I will be able to update the stars on this review soon, when they send my new unit.

I was looking forward to trying this panel out. Received yesterday afternoon and took it all out this morning to set up to my promax2. Upon setting it up I realized there was a crack in the far right side of the right panel. Super bummed. Reached out to EcoFlow to see if they will make it right for me. Fingers crossed I get a replacement and am able to give this product a shot. The product itself seems nice and has a great quality to it. The case is nice and the zipper is great. Seems like it would be a durable product so was surprised to see a crack in it. Will revise my review upon the outcome. For now, not super thrilled. It’s just inconvenient at best.
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Reviewed in the United States on July 22, 2022
Size: 220W SOLAR PANELVerified Purchase
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4.0 out of 5 stars Not sure it’s all it c
Reviewed in the United States on July 22, 2022
I’m new to solar generators and solar panels. So my opinions are based on a first time user. I chose the 220 watt bifacial solar panel because is made sense to garnish extra power from the back scatter. I was anxious for it to arrive. I finally received it I couldn’t wait to try it out. Unboxing was simple with short instructions. Almost none on how to use the case to hold up the panel. I line in Central Texas and my trial was done around 1 pm on a very hot, 101 degrees at the time, cloudless sky. The sun was directly overhead so I laid the panel flat and plug it in to my new EcoFlow River Pro. I watched other YouTubers get 160 to 200 watts out of this panel so I was disappointed to find that I was only getting 107 watts. Perplexed, I tried many configurations and angles. Still I only got 197 watts. Thinking the panel was defective, I called the support number. She led me to turn on and off several features on the app. No success. She told me to continue to try different setups. So I posed my trouble to Amazon customers and Jeremy came through with the answer because he had the same issue. He told me to turn off “slow charging” and that would cure the problem. And it did. So I spent the rest of the afternoon moving the panel to keep it facing the sun at 90 degrees. The highest I reached was 170 watts. I don’t no if the extreme heat was affecting the output, but I can live with it. I did experiment with it though. Since the backside gets more efficient with higher reflective surfaces, I surmised that a reflective blanket was do the best. I used an Arcturus Heavy Duty Survival Blanket. It’s large, 5’x6’, and better built than others. I tried different configurations, panel sitting on it, hanging from the case with curve towards the panel and lying if front of the panel. I didn’t get any increase in wattage from any configuration with the reflective blanket behind the panels. I did get a 5 watt increase with the blanket lying in front of the panel. To make sure that the backside was working, I turned the panel upside down and it was putting out around 55 watts. I have no idea why I’m not getting of extra wattage that this panel was designed for. At least I’m getting adequate from from the 200 watt side.

Using the case to hold the panel works, but what a pain! After getting configured for the current sun position was fairly simple. But when it come time to move it, it helps greatly to have two or more hands. By yourself, expect the case to fall, get twisted, and take forever. My best solution was to anchor the bottom, non-rigid side. That helps tremendously. I’m looking for other methods besides that case. The case does simplify the amount of other equipment you have to bring to set the panels.

Overall, I think the panels and case work well and with the expense.
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F
5.0 out of 5 stars Fonctionne super bien
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