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Save $100 on $2000+ Orders with code SAVE100L&C - Christmas Sale Ending in 48hrs | Hundreds of Top-Rated Reviews | Speak With An Expert 854-777-0909 (Mon-Fri 9a-5p CST)

EcoFlow Delta 2 Portable Power Station

Save $1,799.00 Save $1,025.00
Original price $2,224.00
Original price $1,246.00 - Original price $2,999.00
Original price $2,224.00
Current price $1,199.00
$0.00 - $1,999.00
Current price $1,199.00

EcoFlow Delta 2 Portable Power Station

Key Features

  • Power Up (Almost) Anything, from Electronics & Appliances to Home Backup
  • 2048Wh LiFePO4 Long-Lasting Battery
  • Three AC Outlets, Six USB Ports
  • World's Fastest Recharging with Solar or AC Power
  • Quiet 30dB charging & Smart Management in-App

You won't miss gas one bit when you make the switch to EcoFlow's Delta 2 Max Portable Power Station. Charge up with no fumes, no noise and no maintenance. Winner of the 2023 Red Dot Design Award.

One of the industry's lightest 2400W portable power stations. It's the perfect companion for camping, RV trips, and off-grid escapes. 

Run almost every essential device and appliance using DELTA 2 Max's 2400W AC output. Need more than that? Use X-Boost technology to upgrade your power and run appliances with an output of up to 3400W. DELTA 2 Max handles more devices compared to similar power stations. And it prevents overload and overheating.

Mother and child run washing machine worry free with EcoFlow Delta 2 Max portable power station

Get the most out EcoFlow's Delta 2 Max with a 10-Year Long-Lasting LFP Battery. Robust, secure, and lightweight. The enhanced battery chemistry means your DELTA 2 Max will last for 3000 full cycles before decreasing to 80% capacity. Enjoy nearly a decade of power, even with daily use. That's SIX TIMES LONGER than other power stations of similar capacity and output.

The Delta 2 Max powers through outages with 120V home backup, so you can rest easy. Support your appliances with a 2400W AC output when you connect Delta 2 Max (2kWh) and up to two Smart Extra Batteries (6kWh) to your home's transfer switch for partial home backup through its plug-and-play design.

  • 2048Wh expandable capacity
  • Use X-Boost to power devices up to 3400W
  • Six AC outlets, two 100W USB Type-C ports, two standard USB Type-A ports, one car cigarette lighter-style output
  • Manage with EcoFlow's Smartphone App
  • The world's fastest AC + solar recharge, 80% in just 43 min

 

Looking for a custom bundle? Call to set up a deal that's built for you.
854-777-0909 (M-F 9a-5p CST) or email us at sales@lakehouseandcottage.com

Product Specifications

**In order to purchase Portable Power Station ONLY (without solar panels), select desired size, then select None for Number of Solar Panels and N/A for Solar Panel Capacity**

***Delta 2 Max and 400W Solar Capacity Panel limited to orders of 1 Solar Panel Only at this time*** 

 Specs Delta 2 Max Delta 2
Net Weight 50lbs 27lbs
Dimensions 19.6 × 9.5 × 12 in 15.7 x 8.3 x 11 in
Capacity
2048 Wh 1024 Wh

Max Device(s) Power (with X-Boost)

X-Boost 3400 W X-Boost 2200 W

Extra Battery

Supports up to two DELTA 2 Max Smart Extra Batteries / DELTA Max Smart Extra Battery

Supports one DELTA 2 extra battery or DELTA Max extra battery

Charge Methods

AC: X-stream Fast Charge 1800W, 15A

Solar: 11-60V 15A, single port 500W; dual port 1,000W

Car: Support 12V/24V battery, 8A

AC: X-stream Fast Charge 1200W max

Solar: 11-60V, 15A, 500W max

Car: Support 12V/24V battery, 8A

DC: 1100 W

Life Span 3000 cycles to 80+% capacity 3000 cycles to 80+% capacity
Battery Chemistry LFP (LiFePO4 battery) LFP (LiFePO4 battery)
Supported Devices

EcoFlow WAVE & WAVE 2

GLACIER & Smart Generator

EcoFlow WAVE & WAVE 2
Connectivity

 

WiFi & Bluetooth

Wi-Fi & Bluetooth

AC Input Voltage

100-120V~ max. 15A 50Hz/60Hz

100~120V 15A, 220~240V 10A(50Hz/60Hz)
Outputs

Total AC Outlets: 6 outlets, 2400W total (Surge 4800W)

USB Type-A: 2 ports, 5V, 2.4A, 12W Max per port

Fast Charge USB Type-A: 2 ports, 5V, 2.4A / 9V, 2A / 12V, 1.5A, 18W Max

USB Type-C: 2 ports, 5/9/12/15/20V, 5A, 100W Max per port

Car Port Outlet: 1 port, 12.6V, 10A, 126W Max

Total AC Outlets: 6 outlets, 1800W total (Surge 2700W)

USB Type-A: 2 ports, 5V, 2.4A, 12W Max

Fast Charge USB Type-A: 2 ports, 5V, 2.4A / 9V, 2A / 12V, 1.5A, 18W Max

USB Type-C: 2 ports, 5/9/12/15/20V, 5A, 100W Max

Car Port Outlet: 1 port, 12.6V, 10A, 126W Max

DC5521 Output: 2 ports, 12.6V, 3A, 38W Max

Delta 2 Max

  • Adjustable Power: Expandable capacity from 2 to 6kWh. Add up to two DELTA 2 Max Smart Extra Batteries to get a total of 6144Wh.
  • Sturdy and Long-Lasting: Enjoy 10 years of everyday use before it hits 80% of its original power. All thanks to its special LFP battery chemistry.
  • Big Power: Get up to 3400W power output with X-Boost mode. Just as powerful as other heavy-duty outdoor generators, minus the fumes or noise. Plus with 15 outlets, you can power (almost) all your appliances at one time.
  • Speedy Recharge: Lightning-quick AC recharging and dual AC + Solar charging. 
  • Soak Up Solar Power: Charge to full with solar power in as little as 2.3 hours.
  • Manage Your Energy: In-app smart energy management lets you control how it charges. Choose between solar or regular power. See how much power's coming in and going out, and more.
  • In the Box: The EcoFlow DELTA 2 Max portable power station, AC charging cable, Car charging cable, warranty card, user manual.
  • 5 Years of Coverage: Comes with a warranty that keeps it protected for 5 years.

Delta 2

  • Adjustable Power: This portable power station starts with 1kWh and expands up to 3kWh when you add extra batteries. 
  • Super Speedy Charging: It charges from empty to 80% in just 50 minutes. Perfect for backup power at home or a fast recharge with your wall outlet.
  • Power (Almost) Everything: 1800W runs lots of things at once. Get the same power as other heavy-duty outdoor generators without the fumes or noise. Plus with 15 outlets, you can power (almost) all your appliances at one time.
  • Green Energy: This solar generator can take in up to 500W from solar panels. You can charge it while camping, on an RV trip, or when you're off the grid.
  • Built to Last: Its LFP battery lasts a long time—up to 10 years of daily use. Plus, it's got a smart battery management system that keeps everything safe.
  • In the Box: The EcoFlow DELTA 2 portable power station, AC charging cable, Car charging cable, DC5521 to DC5525 cable, user manual.
  • Coverage: An exclusive 5-year warranty included. 
Solar Panel Rated Power 400W 220W Front / 155W Back 160W 110W
Open Circuit Voltage
Vmp41V Vmp18.4V Vmp18.2V Vmp18.5V
Efficiency 22.4% 22-23% 21-22% 21-22%
Weight

41.9 lbs (with kickstand case)

35.3 lbs (without kickstand case)

20.9 lbs 15.4 lbs 13.2 lbs
Cell Type Monocrystalline Silicon Monocrystalline Silicon Monocrystalline Silicon Monocrystalline Silicon
Dimensions 42"x94.1"x1" 32.3"x72"x1" 26.8"x61.8"x1" 20.2"x62.5"x1"
Waterproof Rating IP68 IP68 IP67 IP68
Short Circuit Current 9.8A 12.0A Front & 8.4A Back 8.8A 6A

400W Solar Panel

  • High Efficiency: This one piece, foldable 400W Solar Panel from EcoFlow boasts a high solar output and 23% improved efficiency so you can power up faster than ever. 
  • Lightweight & Durable: Expert designed pliable EVA and durable fiberglass combine the best of both worlds. You get the versatility of flexible solar panels and the strength of rigid ones. At just 35.3lbs, it's still light enough to bring along on all your outdoor adventures.
  • Weatherproof: A thin ETFE film provides extra protection to shield against dirt, debris, and water. While an IP68 waterproof rating guarantees this panel will safely support you anywhere, from rooftops to extreme camping. 
  • Self-Supported & Portable: The built-in shoulder strap has you covered no matter where you take this foldable solar panel. Save space for travel and storage with its compact design without sacrificing power and efficiency. Plus set up and take down is as easy as 1, 2, 3. Just quickly unfold or collapse the panel and slide it into the protective case which doubles as an adjustable kickstand that allows you to catch the most rays.
  • Specs: 400W Rated Power / Vmp41V Open Circuit Voltage / 22.4% Efficiency / 41.9lbs Weight (with Kickstand Case) 35.3lbs (without Kickstand) / Monocrystalline Silicon Cells / 42"x94.1"x1" Dimensions / IP68 Rating / 9.8A Short Circuit Current

220W Solar Panel

  • Capture 25% More Solar Energy: Get up to a 23% conversion rate thanks to EcoFlow's two-in-one bifacial design. Now you can charge even faster with 220W panels on the front side and 155W on the back.
  • 5x Tougher than Comparable Panels: The tempered glass design is safe to withstand even harsh outdoor elements, including heat up to 300°F.
  • Portable: Compact without sacrificing power. It's 10% smaller than comparable 220W panels so you can travel easy.
  • Waterproof: IP68 waterproof rating. It's completely water and dust-tight. Rain, wind, or shine, you can depend on this one.
  • Bonus: The included carrying case doubles as a kickstand. Simply unfold it and use it any time you travel to get the sun exposure just right.
  • Specs: 220W Front & 155W Back Rated Power / Vmp18.4V Open Circuit Voltage / 22-23% Efficiency / 20.9lbs Weight / Monocrystalline Silicon Cells / 32.3"x72"x1" Dimensions / IP68 Rating / 12.0A Front & 8.4A Back Short Circuit Current

160W Solar Panel

  • Intelligent Solar Power: Pair the EcoFlow 160W Solar Panel with any EcoFlow Power Station and get maximum power output at any time of day. The MPPT power station algorithm guarantees improved performance even in cold and cloudy environments giving these panels a high efficiency rating of up to 22%.
  • Durable: Resistant to water and dust thanks to its one-piece design and an ETFE film for extra protection against ultraviolet light. The IP67 rating makes this panel great for outdoor activities like hiking or camping. 
  • Portable & Foldable: Weighing just 15.4lbs, this is a compact and lightweight, option to power all your outdoor activities. Just unfold to harness the power of the sun in seconds.
  • Bonus: The included carrying case isn't just for protection. It doubles as a kickstand. Unfold and use it any time you travel to get the perfect sun exposure.
  • Specs: 160W(±5W) Rated Power / Vmp18.2V Open Circuit Voltage / 21-22% Efficiency / 15.4lbs Weight / Monocrystalline Silicon Cells / 26.8"x61.8"x1" Unfolded Dimensions / 26.8"x16.5"x1" Folded Dimensions / IP67 Rating / 8.8A Short Circuit Current

110W Solar Panel

  • High Compatibility: Works with most generators so you can stay off the grid longer. MC4 output controller is compatible with most devices.
  • Expandable Efficiency: 22-23% conversion is just the start. With EcoFlow's 110W solar panel you can chain multiple solar panels in parallel together to amp up your power. 
  • Durable: The IP68 rating means this solar panel can keep up with you on all your outdoor adventures. It's an all-weather panel that will keep you powered on even in the harshest conditions.
  • Bonus: Take it with you anywhere with the included carrying case. Portable and foldable, it doubles as a kickstand for this self-supported solar panel, allowing you to adjust the angle between 0-180 degrees to optimize solar input. 
  • Specs: 110W(±5W) Rated Power / Vmp18.5V Open Circuit Voltage / 21-22% Efficiency / 13.2lbs Weight / Monocrystalline Silicon Cells / 20.2"x62.5"x1" Unfolded Dimensions / 20.2"x16.5"x1" Folded Dimensions / IP68 Rating / 6A Short Circuit Current

FAQ

How many solar panels can I use at once?

Delta 2 works with one 400W solar panel, or two 220W solar panels used in series. 500W is the maximum solar charging power.

Will it charge while I'm using it?

Yes, the power station supports both charging and discharging while being charged in vehicles or using portable solar panels. However, it's advisable to avoid outputting power when the machine's battery is low or nearly depleted while connected to DC charging (solar/vehicle charging). During this time, if the input power is equal to or less than the output power, the device might continue consuming power, potentially causing power loss and damaging the battery in the long run.

How long does it take to charge completely?

Your Delta 2 will be fully charged in about 1.3 hours.

Is the Delta 2 waterproof?

The Delta 2 portable power station has a waterproof rating of IP20. You may purchase a waterproof protection bag, sold separately, if you wish to use it outside on rainy days.

Does it work with other Ecosystem products?

Yes, it connects with the Wave and Smart generator.

What connection methods are supported by the App?

You can connect using Bluetooth and WiFi.

Do portable solar panels work?

Portable solar panels are a highly effective, eco-friendly, and renewable method to charge a portable power station. EcoFlow 400W portable solar panels have higher wattage compared to standard ones and boast greater efficiency, thanks to their monocrystalline cells. You can set up to three 400W portable solar panels and pair them with a DELTA Pro portable power station, providing an input of 1600W. Moreover, EcoFlow portable power stations use an MPPT algorithm to ensure a consistent energy supply. Unlike fixed solar panels, portable ones can be easily moved and adjusted according to the sun's position in the sky.

What are the best solar panels for camping or RV trips?

The top choice for camping and adventure are solar panels that are portable, fold easily, and weigh less. All the the EcoFlow bundle solar panels meet these conditions. Connect one with a portable power station and link up to 4 panels together for instant, clean, and renewable power.

How much power can the 220W solar panel generate in regular conditions?

It mainly depends on the weather. Generally, on a clear, cloudless day when sunlight hits the panel at a 90° angle, it typically produces between 160W and 180W of power. Under test conditions, the current light levels usually range between 74.3W–83.6W/ft2, with a panel temperature of 122°F. The panel's nominal power ratings are based on 92.9W/ft2 in AM1.5 conditions, with a panel temperature of 77°F under test conditions. Power outputs near nominal values were typically observed during midday in the winter sun.

Can I link the 110W and 220W solar panels in series together?

You can, but it's not advisable. Even though the voltages of both panels match, their current ratings differ. Connecting them in series limits the current to that of the 110W panel, preventing the full potential of the 220W panel from being utilized. This results in a situation where 1+2 is less than 3. If you plan to connect multiple panels in series, it's recommended to use panels of the same size.

Warranty

Note that warranty periods might differ due to local laws and regulations. In some places, limitations on implied warranty duration may not apply to you. Your rights can vary based on your state, province, or country.

Please read the warranty terms before using your products. All EcoFlow items purchased on lakehouseandcottage.com have a limited warranty through EcoFlow, detailed below. By using EcoFlow products, you agree to adhere to the terms of the EcoFlow limited warranty.

The limited warranty for purchases on lakehouseandcottage.com initiates when the original purchaser receives the products.

Item Warranty Period
DELTA 2
DELTA 2 Max
DELTA 2 Extra Battery
5 years
400W solar panels
220W solar panels
160W solar panels
110W solar panels
12 months

 

This warranty does not cover:

  • Issues not related to quality.
  • Items bought from places other than lakehouseandcottage.com.
  • Purchases lacking valid proof of purchase.
  • Items that have been refunded.
  • Items past their warranty period.
  • Defects or damages due to misuse, unauthorized modification, disassembly, or improper operation as per official instructions or manuals.
  • Defects or damages due to exposure to extreme heat, liquids, or other external factors.
  • Defects or damages due to compatibility issues from using unauthorized third-party parts.
  • Lost or stolen products.
  • Free products.

Valid Proof of Purchase

  • A purchase order number made through lakehouseandcottage.com;
  • Order confirmation email or invoice that clearly states the description of the product, its price, and where it was purchased.

    Warranty Return Authorization Process

    • Contact Lakehouse & Cottage Customer Service Team at sales@lakehouseandcottage.com or 854-777-0909.
    • If your item is eligible for an EcoFlow Warranty, you will receive a prepaid shipping label. Please follow the instructions provided by Lakehouse & Cottage Support to pack the products and safely return them.
    • Please note that we can only provide return shipping labels for return packages in United States.

    Replacements

    Should a replacement be necessary, the delivery of the replacement item will be coordinated within 15 business days (subject to adjustments due to unforeseen circumstances) after confirming receipt of the defective item at our warehouse. The ultimate resolution depends on the availability of replacement items.

    The replacement warranty will extend for a period equivalent to the remaining warranty duration of the original item.

    Shipping

    Processing Times

    All orders are typically processed within 1-2 business days.

    Product ETA is 5-7 business days.

    Please note, we do not process shipments on weekends or public holidays. During high order volumes, there may be a slight delay; please allow extra transit time. If a significant shipping delay occurs, we'll notify you via email you provided.

    Shipping Carriers

    Lakehouse & Cottage uses USPS, FedEx, and UPS delivery services.

    We offer FREE Shipping on all our products. 

    Available Shipping Areas

    Orders are shipped within the contiguous United States, excluding outlying islands and overseas territories.

    Shipping Information Responsibility

    Ensure accurate shipping details when placing an order. We're not liable for losses due to incorrect shipping information.

    P.O. Box or APO/FPO/DPO addresses are not accepted.

    Shipping Tracking Information

    You will receive shipment confirmation and tracking information via email. 

    You will receive confirmation once your order has been received and is being prepared to ship.

    After your order has been packaged, tracking will be added and sent to you. You will receive tracking information to the email address you provided.

    Check the Status of Your Order

    Your confirmation email will have a link to check the status of your order. 

    You will also receive notifications when your order ships with tracking information provided through the shipping carrier.

    For additional help checking the status of your order or if you have not received your confirmation email within 48hrs, please contact us at sales@lakehouseandcottage.com

    Damaged or Missing Items

    Report any damage or missing packages within 7 business days to sales@lakehouseandcottage.com. While we don't assume responsibility for shipping carrier errors, we'll assist in contacting them and making things right. Keep packaging and damaged items for potential claims.

    Refunds and Returns

    We know you'll love your order! But just in case you're not fully satisfied, we've streamlined an easy return process.

    Cancellation

    You can request a full refund within 24 hours of placing your order on lakehouseandcottage.com. However, a transaction fee will apply if you request a refund after 24 hours but before delivery (2.6% for credit card users, 3.6% for PayPal users, 3.5% for Affirm users, 3.3% for Klarna users). Orders can't be canceled more than 30 days after shipment.

    Returns

    Our return service currently applies to US orders only. If you're unsatisfied, you can return items in their original packaging within 30 days for an exchange or refund. However, after 30 days, refunds or exchanges aren't possible.

    For quality issues, we offer a full refund or one-time free replacement within 30 days of receiving the items. Contact our support team via sales@lakehouseandcottage.com for return instructions after collecting the shipped package. Please note, refusing shipments may incur a double shipping fee deduction.

    Return Process

    Initiate returns by contacting Lakehouse & Cottage Support at sales@lakehouseandcottage.com with proof of purchase. We'll provide instructions for packaging and returning the products. Ensure all components are included.

    Refund

    After returning the product to our warehouse, expect a refund within 14 business days. You'll receive an email notification upon refund processing. If the refund isn't received after 14 business days, contact us at sales@lakehouseandcottage.com.

    Return Shipping Cost

    For returns on US orders, a shipping fee and a transaction fee (2.6% for credit card users, 3.6% for PayPal users, 3.5% for Affirm users) apply.

    Product Shipping Cost
    DELTA 2 $60
    DELTA 2 Smart Extra Battery $60
    DELTA 2 Max $75
    DELTA 2 Max Smart Extra Battery $75
    110W/160W Portable Solar Panel $40
    400W Portable Solar Panel $70
    220W Solar Panel $45

     

    Please note that return shipping costs include shipping costs and handling fees.

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    Customer Reviews

    Based on 4 reviews
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    T
    T.B.
    Ordered just in time

    The unit arrived faster than expected, just before a winter storm. After letting it warm up indoors, I plugged it in and was impressed by its 30% charge. Charging at around 1200 watts, it reached full capacity in less than an hour, a standout feature of Ecoflow products. It powered a full coffee pot easily and handled multiple devices without breaking a sweat, still retaining 50% charge. Running various loads during the storm, it held up exceptionally well and now, post-storm, it's been a reliable powerhouse for my needs. The Ecoflow Delta 2's quick charging and all-in-one capability make it a standout option for backup and off-grid use.

    J
    Joel Hansen

    I researched extensively and watched numerous videos before deciding on the EcoFlow Delta 2. Primarily, I use it for overnight camping trips and as a backup power source during blackouts to run appliances like the refrigerator and microwave. Though the Delta 2 doesn't offer the same battery capacity as the Delta Pro, with a good solar panel, it proves quite useful when needed. You can augment the battery capacity by seamlessly adding an additional battery or investing in the EcoFlow Smart Generator.

    I debated between the Bluetti EB70s and the Ecoflow Delta 2. The Delta 2's higher battery capacity of 1024WH compared to the EB70s' 716WH was the primary reason I chose the Delta 2. Additionally, the Delta 2's surge power (X-BOOST) is notably high, facilitating the smooth operation of devices like microwaves or coffee machines at campsites or picnics. Although the Delta 2 is pricier, it's a worthwhile investment.

    I purchased a combo pack of the Delta 2 and solar panel, and there are several things I appreciate about the Delta 2 after using it:

    Construction: The Delta 2 is robustly built, featuring rubber bumpers for extra protection. Its design fits well in the car, and despite protruding handles, the unit is strong enough to hold heavy items atop.

    Display: The display is sizable and clear, making it easy to read even in bright light. It accurately showcases all active connections, with USB icons appearing only when a load is connected, which is curious but not a significant issue.

    App and Connectivity: The mobile app is user-friendly and offers numerous configuration options. Connecting the Delta 2 to the app is effortless, usually operating flawlessly with correct data. However, occasional refreshes might be needed to update the app's data.

    Charging: The Delta 2 can charge at an impressive 1200W, reaching full capacity in about 80 minutes. It's noteworthy that during this fast charging, the fans activate to dissipate heat. Opting for a lower charging speed, such as 500W, might reduce noise and potentially extend battery life.

    Output Connections: With a massive 1800W peak capacity and 2700W of surge capacity, the Delta 2 offers ample output connections—USB A, USB C, power outlets, and a 12V car-type port—to power various devices, making it versatile for home appliances.

    Regarding the combo I purchased, I initially bought 160W solar panels but later wished for 220W ones. Their support team accommodated my request despite my initial choice. Their prompt and informative responses demonstrated exceptional customer service.

    Overall, I'm quite satisfied with the Delta 2 and appreciate its capabilities and the commendable customer service.

    C
    Cam W.
    Big Fan

    The Delta 2 marks my 5th EcoFlow power station, so I guess you could call me a fan. I started with a River 2 early last year and was so impressed that I've added more models, even gifting two units to family, alongside some solar panels. Here's why the Delta 2 stands out:

    Firstly, its packaging for shipment is top-notch, double-boxed and cushioned with custom foam inserts. Weighing just over 25 pounds, it's robust, and conveniently placed handles at both ends make it easy to carry. One standout feature is the bright display dominating the front panel, offering clear readability in varying lights and angles. This display shows charge time, percentage, input and output wattage, plus icons for line frequency and WiFi connectivity. Additionally, there are 5 USB sockets, including two 100W USB-C connections below the display.

    On the rear panel, there are 6 AC sockets (2 are 3-prong), three 12v sockets, and an AC line-in socket along with a solar panel connection (XT60). The Delta 2 can link to a second battery and even supports the Delta Max Extra battery, effectively tripling its capacity. It hosts a 1024Wh LiFePO4 battery, offering extended cycle life and better full discharge tolerance.

    EcoFlow's user app is top-notch, allowing Bluetooth or WiFi connectivity. I opted for WiFi for remote access when I'm away. The UI isn't as comprehensive as older models, but it allows remote monitoring of charge levels, power, and various settings.

    While it has minor flaws, like the internal fan spinning often and a UI that's not as extensive as older versions, I anticipate future firmware updates to address these. Solar charging is swift, accepting up to 500W input at 11-60V / 15A. Connecting four 100W panels on a December afternoon quickly topped off the battery.

    In essence, the Delta 2 is versatile, well-equipped with various outputs, and promises longevity.

    H
    Hagerty
    BEST

    I'm quite pleased with this product. It charges swiftly and retains its charge as expected. While it lives up to the manufacturer's claims, there are some minor areas for improvement. The included instructions lack detail about the App's installation, usage, and its significance. Installing the app is crucial for firmware updates and unit control. However, the app could use refinement; at times, it struggles to connect to the Delta 2 or displays a connection when the charge/discharge data doesn't align with the unit's screen.

    Patience is key with the app—it often takes several minutes to connect, and backing out to the main page and clicking on the Delta 2 helps refresh the connection. The solar panel function seems to require very bright, precisely aimed sunlight for effective charging. Using an extension cord for the solar panel is recommended unless it's placed right beside the Delta 2. I fashioned my extension cord using 12-gauge wire and connectors.

    The app allows queries to customer support, but the responses took longer than expected and weren't particularly helpful. Relying on online videos and trial and error was necessary to understand its operation.

    Overall, I appreciate the product, yet I'd suggest the manufacturer provide more comprehensive setup and usage information, especially regarding the app.

    Update: There seem to be some unnoticed bugs in the app. While the feature to adjust charge/discharge range is excellent, it intermittently disregards the settings I input, setting itself to different values later on. Similar issues arose with other app settings like charging wattage. I hope Ecoflow addresses these soon. Despite these concerns, I still rate it at 5 stars, as it's top-tier in my opinion.