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SURGEON GENERAL'S WARNING: Smoking Causes Lung Cancer, Heart Disease, Emphysema, And May Complicate Pregnancy.

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Limited time! Get a $50 statement credit when you open an account & use it to make $30 in eligible Sam’s Club purchases within 30 days.¹

¹Offer subject to credit approval. During the offer period, new accounts that qualify will earn a $50 statement credit instead of a $30 statement credit that you may see otherwise advertised. To qualify, you must (i) apply and be approved for a Sam’s Club credit card account between May 14–June 3, 2026 and (ii) use your new account to make Sam’s Club purchases totaling $30 or more (excluding cash advances, gift card sales, alcohol, tobacco and pharmacy purchases) within 30 days of date of account opening. When you open an account online or with your mobile device, purchases cannot be made at in-club registers until the physical card is received. Your physical card should arrive in 7–10 business days from date of account opening. A $50 credit will post to the account within 90 days after the qualifying purchases are made. Offer is valid for newly opened accounts only and each account is eligible for only one $50 offer, in lieu of, and not in addition to, any advertised $30 offer.

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EcoFlow Delta 3 Ultra Plus 3 kWh Home Back Up Battery with 400W Solar Panel

Instructions

DELTA 3 Ultra Plus (3072Wh) delivers 3600W rated-output (7200W surge) , with X-Boost™ 3.0 technology, it supports devices up to 4600W—effortlessly handling heavy-duty appliances. The inverter samples AC voltage and current every 33μs with high precision with a DSP chip, ensuring a pure sine wave output with beyond grid-level stability—ideal for powering sensitive electronics reliably.  <br>  Choose which circuits stay powered via the app. Prioritize what matters and extend runtime when it counts most.  <br>  Ready in Just 48 Mins (0-80%) with Solar + Generator Dual Charging  <br>  Equipped with automotive-grade full-tab LFP cells, offering 10 years of reliable power, 24/7 protection BMS, Class-B certification, and EV-grade CTC structure that protects against overnight condensation and off-road bumps during transport.  <br>

Brand

<ul>  <li>Smart Output Priority</li>  <li>3-11kWh Expandable Capacity</li>  <li>6 Ways to charge, Ready in Just 48 Mins</li>  <li>3600W Powerful Output, 7200W surge output</li>  <li>Long-Lasting, Durable, and Reliable</li> </ul>

Specifications

Ingestion Hazard

<ul>
<li>Smart Output Priority</li>
<li>3-11kWh Expandable Capacity</li>
<li>6 Ways to charge, Ready in Just 48 Mins</li>
<li>3600W Powerful Output, 7200W surge output</li>
<li>Long-Lasting, Durable, and Reliable</li>
</ul>

I am very impressed with the Echoflow foldable solar panels. Well made, meets or exceed all specs. I like that the panels are built for the Echflo pro product and I don't have to gerry-rig 3rd party solutions..Be aware that they are soldi built which makes them heavier than other similar panels.....just goes with the territory  if you want quality..........In-addition.....I am always impressed with the customer support EchoFlow provides....I know I can always get an answer to my questions either through customer support line or the EcoFlow Delta Series Group, face book page ..I highly recommend all of the Echflow product and anxiously waiting for new products that can augment my home power needs.....

thank you very much!

Excellent Foldable Solar Panels & customer support

ecoflow 

The solar panel works as it's supposed too.  Gets close to the wattage, if placed correctly in the sun.  Charged my EcoFlow Delta within 3 hours from 50% on a sunny and warm day.  I did have an issue with the kickstand and had to prop it up using outdoor furniture, but I'm assuming that was user error.  :-)  One of the accessory hooks broke, but they replace it very promptly.

Great panel!

I tried out this 400W solar panel with one of my Delta Pros yesterday. It was a partly sunny day, so the wattage input varied greatly. However, I was able to get up to 367 W of input at one point, and was able to charge from 30% up to 61% within an afternoon. I'm happy with that!

Nice solar panel setup!

Hoked up a single 400 watt panel. I live in orlando florida so sun is always available 
With some adjustment it was pushing 300-325. I purchased a second panel but havn't tried them in series yet.  I hope to get 600-700 watts.  I think it will do the job with an extra battery.  
.

Great so far

Worth every penny.   This solar panel has changed the way I use my EcoFlow max.   amazing working art.  It even gives me 370 watt in day cloudy day.  My  generator is always 95-100 topped up. During the day.  Just need a little bit of light and they power up.  Highly recommend.   I don't get paid for this survey and not sponsored.   My personal experience.  They deserve 5 star.  I ordered my 2nd 400 watt panel.

EcoFlow is the future

Very easy to set up and put away. A bit heavy but there's not much to be done about. The only reason I care about the weight was thatbI planned to doublenit as an awning on my van, but thebweight makes that impractical. Does everything its meant to.

The best combination of power and diverse usage.

I hooked up the solar panels to the charger today. The panels and charger are on my in full sun. Started at 29% battery and now is at 42%. Charges at a slower pace. It's been charging for about 2 hours. I have four panels for 400 watts.

New solar generator hookup.

Ordered it as soon as it became in stock again. Took a while as it shipped from Hong Kong. Packaging was damaged but luckily the panels were not. The panels are heavier than I thought they would be. Works very well to recharge a standard delta unit - generating max of 200w by lying flat in morning sunlight. Took about 1 hour to go from 86% to 100%.

Good buy

The case to be used as a stand is a joke. I couldn't get it to work for me at all. I opted to just lay the panel flat on my back deck. The sun hits my deck from around 9am until 6pm. It is July so I'm sure that will change, but for now it is working for me. With all that said and done, I still am able to produce up to 310watts. I'm very happy with that. My TV, and my gaming laptop and 2 fand and 2 phone chargers only pull 170watts. So I am able to game and charge other items and have no worries of using more power than I am producing..

EcoFlow 400W Solar Panel

The panel itself is a bit bulky (42lbs) if you make a brace it works very well I have gotten up to 385 watts of power. And the panel is robust.
The down side to this panel is that it takes 6 to 8 min to set up. And the team that designed the stand never tried to use that piece of crap I have 3 of them modified all of them so I don't have to unfold or use the terrible stands .

Panel Great stand not so much.

Not sure if it works or not.  Only receive the solar panels after ordering twice.  Sam's Club is less than helpful and trying to talk to a real person is near impossible.  Last response was we contacted carrier and awaiting a response.  So no battery back up and just the solar panels after ordering twice!!

EcoFlow Delta 3 Ultra Plus 3 kWh Home Back Up Battery with 400W Solar Panel

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Highlights

8kWh / 4kWh EcoFlow DELTA Pro 3 Bundle with Smart Home Panel 2