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EF ECOFLOW Portable Power Station DELTA 2, 1024Wh LiFePO4 (LFP) Battery, Fast Charging, Solar Generator(Solar Panel Optional) for Home Backup Power, Camping & RVs

4.5 4.5 out of 5 stars 1,462 ratings

Sustainability features

This product has sustainability features recognized by trusted certifications.

Carbon impact

Carbon emissions from the lifecycle of this product were measured, reduced and offset.

As certified by
Climate neutral by ClimatePartner Climate neutral by ClimatePartner

The Climate neutral label by ClimatePartner certifies that the carbon footprint of a product was calculated and all associated emissions were offset. Additionally, ClimatePartner encourages companies to set ambitious reduction targets and reduce their products' carbon footprints. The certificate number can be entered on ClimatePartner’s website for additional information such as the supported carbon offset project(s). ClimatePartner is improving lives by helping companies tackle climate change with practical solutions.

Learn more about this certification

Certification Number

ZBSIDF
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Climate Pledge Friendly

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DELTA 2

Purchase options and add-ons


About this item

  • 7 X Faster Charging. 0-80% in just 50 mins and 0-100% in 80 mins with AC input. That's ideal when you need home backup power and a quick charge using your wall outlet.
  • Expandable Capacity from 1-3kWh. With the standalone portable power station sporting 1kWh, you can add on extra batteries to reach up to 3kWh. Ideal for camping, RVs or off-grid living.and a quick charge using your wall outlet.
  • Power Almost Anything. Portable batteries have come a long way. Power all your appliances with 1800W output, that's on par with outdoor generators without the fumes or noise. With 15 outlets and its huge output, you can power 90% of your appliances.
  • Clean, Green Charging. With up to 500W of solar panel input, DELTA 2 is a solar generator that can be charged while camping, on an RV trip or off-grid.
  • Built to Last 6x Longer. Its LFP(LiFePO4) battery chemistry makes for a portable power station with a 3000+ cycle life. Enough for years on end of use. With a sophisticated BMS, you can go easy knowing its auto-regulating to keep you safe.
  • What's in the Box. EcoFlow DELTA 2 portable power station, AC charging cable, Car charging cable, DC5521 to DC5525 cable, User manual, and an exclusive 5-year customer service.
  • Plug and Play Home Backup Power. A simple power outage solution to power your essential home appliances with 1800W AC output by directly connecting the DELTA 2 with your home's power inlet box* with a generator cord for partial home backup. With a plug-and-play design, it's easier than ever to prepare for blackouts.
  • *including transfer switch or GenerLink which has a male L14-30 twist-lock connection that can accept a L14-30 extension cord.

Customer ratings by feature

Value for money
4.7 4.7
Battery life
4.6 4.6
Portability
4.6 4.6
Light weight
4.6 4.6

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$629.00
Get it Mar 28 - Apr 2
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EF ECOFLOW Portable Power Station DELTA 2, 1024Wh LiFePO4 (LFP) Battery, Fast Charging, Solar Generator(Solar Panel Optional) for Home Backup Power, Camping & RVs
EF ECOFLOW Portable Power Station DELTA 2, 1024Wh LiFePO4 (LFP) Battery, Fast Charging, Solar Generator(Solar Panel Optional) for Home Backup Power, Camping & RVs
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EF ECOFLOW Portable Power Station DELTA 2 Max, 2400W LFP Solar Generator, Full Charge in 1 Hr, 2048Wh Solar Powered Generator for Home Backup(Solar Panel Optional)
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Price-37% $629.00
List:$999.00
-26% $1,399.00
List:$1,899.00
-45% $899.00
List:$1,649.00
-40% $178.00
List:$299.00
-19% $379.00
List:$469.00
-21% $1,499.00
Typical:$1,899.00
Delivery
Get it Mar 28 - Apr 2
Get it Mar 28 - Apr 1
Get it Mar 28 - Apr 1
Get it as soon as Tuesday, Mar 26
Get it Mar 28 - Apr 2
Get it Mar 28 - Apr 2
Customer Ratings
Battery life
4.6
4.6
4.6
3.8
4.2
4.7
Portability
4.6
4.6
4.6
4.6
4.7
4.3
Charging power
4.5
4.5
4.5
4.1
4.4
4.6
Light weight
4.6
4.6
4.6
4.7
4.4
Noise level
4.2
4.2
4.2
4.0
4.7
Sold By
EF ECOFLOW-US
EF ECOFLOW-US
EF ECOFLOW-US
ECOFLOW Direct
EF ECOFLOW-US
EF ECOFLOW-US
fuel type
Electric
electric
Electric
power source
Solar Powered
Solar Powered
Solar Powered
Solar Powered
AC/DC
Solar Powered
engine type
4 Stroke
4 Stroke
4 Stroke
output wattage
1800 watts
500 watts
220 watts
600 watts
1000 watts
runtime
3 hours
3 hours
3 hours
43 minutes
wattage
1024 watt hours
1024 watt hours
1024 watt hours
600 watts
512 watt hours
2048 watt hours

Product Description

5
Sustainability features

Sustainability features

This product has sustainability features recognized by trusted certifications.

Carbon impact

Carbon emissions from the lifecycle of this product were measured, reduced and offset.

As certified by
Climate neutral by ClimatePartner Climate neutral by ClimatePartner

The Climate neutral label by ClimatePartner certifies that the carbon footprint of a product was calculated and all associated emissions were offset. Additionally, ClimatePartner encourages companies to set ambitious reduction targets and reduce their products' carbon footprints. The certificate number can be entered on ClimatePartner’s website for additional information such as the supported carbon offset project(s). ClimatePartner is improving lives by helping companies tackle climate change with practical solutions.

Learn more about this certification

Certification Number

ZBSIDF
Part of
Sustainability features
Climate Pledge Friendly

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Product information

Warranty & Support

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

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EF ECOFLOW Portable Power Station DELTA 2, 1024Wh LiFePO4 (LFP) Battery, Fast Charging, Solar Generator(Solar Panel Optional) for Home Backup Power, Camping & RVs


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Product guides and documents

Customer reviews

4.5 out of 5 stars
4.5 out of 5
1,462 global ratings

Customers say

Customers like the weight, battery life, ease of use, and charging of the electricity generator. For example, they mention it's light weight, holds a charge as it should, and can be recharged so often. That said, they're happy with the quality, performance, and size. Opinions are mixed on the noise.

AI-generated from the text of customer reviews

192 customers mention148 positive44 negative

Customers like the performance of the electricity generator. They say it works well, holds a charge, and is pleased with its performance so far. The app works great and the unit continues to run flawlessly. The solar panel seems to work, but you need very bright sunshine. Overall, customers are happy with the performance and recommend it to others.

"...App and Connectivity - The phone app works great and it's very easy to use. There are so many options that you can set via the app...." Read more

"...Despite its robust power capabilities, it's surprisingly portable - lightweight and easy to transport thanks to the built-in handle...." Read more

"...Feels very well built and I expect it to last a long time, especially with the LifePo4 batteries - I'm not even sure I could use the 3,000 cycles up..." Read more

"...The app worked great, as long as I was using it in Bluetooth mode only on my Samsung 22 Ultra...." Read more

190 customers mention169 positive21 negative

Customers like the quality of the electricity generator. They say it's a premium power solution, well built, and powerful enough to run their gas furnace. Customers also say it provides the greatest balance of power and portability. They mention that the battery is more stable than NCM batteries.

"...Construction - This is a solid built product. The bottom edges have these rubber bumpers for extra protection...." Read more

"...The fact that it maintains a stable and reliable power output is particularly reassuring, especially during crucial moments or in unexpected power..." Read more

"...Feels very well built and I expect it to last a long time, especially with the LifePo4 batteries - I'm not even sure I could use the 3,000 cycles up..." Read more

"...Makes it suitable for use as a Standby Power Supply (SPS) during a blackout- Expansion options--..." Read more

171 customers mention139 positive32 negative

Customers like the charging of the generator. They say it charges to 80 in about 50 minutes, which is good if you're in a rush. The units charge like a champ, and it takes very little time to recharge. Customers also appreciate the app, which allows them to manage the charge speed and other features. They mention that the generator can power things up quickly and that it automatically uses the AC charging speed.

"...Charging - Delta 2 can charge at a whopping 1200W to be ready from 0% to 100% in about just 80 minutes...." Read more

"...The flexibility to charge using solar energy not only saves me money in the long run but also empowers me to go on extended trips without worrying..." Read more

"...It's amazing how fast it can charge up even at the reduced level to save battery life (~500W vs ~1000W) - which I didn't find noisy at all...." Read more

"...-- Rapid-charging from 0 to 80% in an unheard of 50 minutes — a claim I personally verified to be accurate---..." Read more

110 customers mention81 positive29 negative

Customers like the battery life of the electricity generator. They mention that it charges quickly, holds a charge as it should, and can be recharged so often. The battery can be expanded to a total of 2,048Wh or 3,040Wh, and has an amazing 3000 charge cycles at 80% or better. Some say that it replaces a UPS and offers a much longer charge for network equipment. Some like that it can be discharged and charged daily from 100% to 0 for 8.2 years.

"...With an impressive capacity, it effortlessly handles charging a multitude of devices simultaneously...." Read more

"...Expansion options-- Battery capacity expansion to a total of 2,048Wh or 3,040Wh with the Delta 2 Extra Battery (+1,024Wh) or Delta Max Extra..." Read more

"...Pros:Great size, capacity and power. You will have no problems running a 12v fridge and other small appliances...." Read more

"...Then the charge level would suddenly drop from around 63% to 30%. I could still charge the unit from 110v wall socket at home...." Read more

98 customers mention93 positive5 negative

Customers are satisfied with the size of the electricity generator. They mention that it is very compact, sturdy, and portable. They appreciate the large and comfortable handles on both sides of the power, and the fact that it provides so much in a compact package. Customers also mention that the solar charger makes it a perfect match for camping.

"...Despite its robust power capabilities, it's surprisingly portable - lightweight and easy to transport thanks to the built-in handle...." Read more

"...it for very long, but the ports that are available and size of the system seems adequate for our needs at the moment...." Read more

"...it to feel a little more heavy than it actually is but it's very easy to move around to wherever I need it...." Read more

"...Pros:Great size, capacity and power. You will have no problems running a 12v fridge and other small appliances...." Read more

93 customers mention89 positive4 negative

Customers find the electricity generator easy to use. They mention that the user-friendly interface and controls make operating the Delta 2 a breeze. The phone app is really easy to operate and gives you the status of the unit at a glance. The manual is simple and easy to understand, and the app to monitor your unit is easy to follow. It also inserts paperwork very simple.

"...App and Connectivity - The phone app works great and it's very easy to use. There are so many options that you can set via the app...." Read more

"...The user-friendly interface and controls make operating the Delta 2 a breeze...." Read more

"...The power unit charged up fine, taking very little time even though set to the average setting for wall charging...." Read more

"...No muss no fuss. HELPFUL TIP- the ecoflow DOES NOT SHIP WITH THE SOLAR PLUG. Only if you buy the solar panels is it included...." Read more

66 customers mention56 positive10 negative

Customers like the weight of the electricity generator. For example, they mention it's light enough to carry one-handed, and it has a large capacity. Some are surprised at how small and light it is. That said, most are happy with the product's weight and capacity.

"...The box is strong and one can easily put heavy items on the top without any issues...." Read more

"...Despite its robust power capabilities, it's surprisingly portable - lightweight and easy to transport thanks to the built-in handle...." Read more

"...I was pleased at what a light weight and cost effective solution this is...." Read more

"...It’s light and easy for me to bring around the homestead with me, so I have power wherever I need it." Read more

74 customers mention34 positive40 negative

Customers have mixed opinions about the noise produced by the electricity generator. Some mention that it is very quiet when in use, while others say that the fan was a little loud. The inverter produces line noise which makes it unsuitable for audio work.

"...Test #2: 36% to 88% in 32 minutes (4:34pm to 5:06pm)-- Fans were VERY loud during that time and significantly got more quiet around the 90%..." Read more

"...Seems like there's a quiet background computer fan sound, and a more serious load speed which is a little louder but expected and acceptable...." Read more

"...It kicked on some loud fans immediate upon plugging it in...." Read more

"...There was some "fan" noise while it was charging, not terribly loud, but definitely there...." Read more

Really fast charging, but also really loud fan (for up to 60 mins). Excellent engineering otherwise
5 Stars
Really fast charging, but also really loud fan (for up to 60 mins). Excellent engineering otherwise
EcoFlow announced the Delta 2 power station at IFA Berlin 2022 with the tagline of: “Not Just a Battery.” It was available for purchase on September 16, 2022. After their excellent Delta Pro we reviewed not too long ago for our vacation home, we were very intrigued by what this new product could do, and how it would compare against Goal Zero and Jackery.The Delta 2’s 1,024Wh battery capacity — how long something can run for — and price point puts it right in direct competition with the identically priced Goal Zero Yeti 1000x and Yeti 1000 Core, Jackery Explorer 1000, and its own predecessor, the EcoFlow Delta 1000 — but with one major change. Instead of using Nickel Manganese Cobalt (NMC), the Delta 2 now uses Lithium Iron Phosphate (LiFePO4) like its more powerful Delta Pro sibling. There are significant differences between both Lithium-ion (Li-ion) battery chemistries that I will detail later.How much energy a battery can store is measured in Wh (Watt-hours), and how much power is used or produced in W (Watts).Goal Zero launched the Yeti 1000 Core power station on July 16, 2021, five weeks after the flagship Yeti 1000x was available for purchase, and the Delta 2 packs more powerful features with its announcement a year later:- LiFePO4 battery chemistry (Pros and Cons to that over NMC)- 1,200W AC charging input-- Rapid-charging from 0 to 80% in an unheard of 50 minutes — a claim I personally verified to be accurate--- Test #2: 36% to 88% in 32 minutes (4:34pm to 5:06pm)-- Fans were VERY loud during that time and significantly got more quiet around the 90% charged mark--- If fan noise is important to you because of a tight sleeping quarter, be mindful of that. On the other hand, it would only take 50 minutes to go from 0 to 80% charge. So, charge before you go to sleep.FAN TOO LOUD?You can lower the charging speed from 1200w to 600w via the app, and the fan won't be as loud.- 500W solar charging input (11-60V @ 15A)- Whopping 15 outlets-- AC output at a Continuous 1,800W and Peak of 2,700W-- X-Boost output at 2,200W-- USB-C at 100W- Mobile app control via WiFi or Bluetooth- Near-instant auto-switching between AC and battery power-- Makes it suitable for use as a Standby Power Supply (SPS) during a blackout- Expansion options-- Battery capacity expansion to a total of 2,048Wh or 3,040Wh with the Delta 2 Extra Battery (+1,024Wh) or Delta Max Extra Battery (+2,016Wh), respectively--- Only the Goal Zero Yeti 1000x (983Wh) has expansion capabilities in this 1,000Wh-battery roundup to a total of 5,783Wh (938Wh + four 1,200Wh Yeti Tanks)-- Connectivity with solar panels, the EcoFlow Wave portable air conditioner, and EcoFlow Smart Generator- 5-year warrantyEcoFlow, Goal Zero, and Jackery power stations can be used while simultaneously charging themselves.Sweet Spot: The 1000Wh battery capacity hits the sweet spot for many consumers, including this author, who are looking for the right balance of power and portability. But when it comes to home integration, the more Watt-hours a battery ecosystem offers, the longer one can power a home for during a blackout.PAIRING WITH EXTRA BATTERYI paired the Delta 2 Extra Battery (EB) with this Delta 2 power station. I was happy to see that chaining the EB to the Delta 2 and charging it from the AC wall produced about 1100W of input. This fully charged the EB in about an hour. Without the AC wall, it sipped only about 54W directly from the Delta 2 -- this would charge an empty EB from 0 to 100% in 19 hours.When plugged in to the AC wall, the Delta 2's fans were very loud just like when it charged standalone at 1100-1200W input. Once the Extra Battery was at around 90%, charging dropped to roughly 700W and the Delta 2's fans lowered manageably quieter.Note: Delta 2 Extra Battery cannot be independently charged. It must be connected to the Delta 2.BATTERY TECHNOLOGYThere has been a lot of debate on whether Nickel Manganese Cobalt (NMC) or Lithium Iron Phosphate (LiFePO4) is better. Both are Lithium-ion batteries. Goal Zero, Jackery, and most of today’s power station manufacturers use NMC, but why do EcoFlow and Bluetti use LiFePO4 when they are bulkier and heavier? They hold some important advantages over NMC:- Safer, less volatile, and thus cheaper to manufacture- Charge cycle: 1500-2000 (10+ years)-- NMC: 20-25% capacity loss after every 500 cycle (6-10 years for up to 2000 cycles, after which capacity is vastly diminished)-- EcoFlow claims 3500 cycles before dropping to 80% of original capacity and 6500 to 50%. Those are some VERY optimistic projections that I do not think are accurate in actual usage- Usable in more extreme temperatures (-4F/-20C to 176F/80C). NMC: only 140F/60C max-- Check with manufacturer for your battery to be sure- Holds 350-day charge. NMC: 300LiFePO4 batteries are less volatile (safer), more usable in extreme temperatures, and have a higher charge cycle count (battery lifetime) than NMC.CAUTION: Lithium-ion batteries do NOT like to remain discharged at 0% for prolonged periods of time. If you let your battery stay at 0% for too long, you may not be able to charge it again without specialized equipment.CONTINUOUS VS PEAK OUTPUTIt is important to understand the difference between Watts and Watt-Hours. How much power is used or produced is measured in Watts, and how much energy a battery can store is calculated in Watt-Hours. See the “Calculations” section below for more details.How much energy a battery can store is measured in Wh (Watt-hours), and how much power is used or produced in W (Watts).- AC Inverter: Converts battery (DC) power into AC-- Delta 2 provides 1,800W continuous output with a 2,700W peak- Peak/Surge (Starting): Nearly every device initially draws extra power to turn on. The highest amount it pulls is the Peak. As long as that number is below 2,700W, it can be STARTED. Examples…-- Turns on OK (PEAK under 2,700W):--- Freezer starts at 400W (peak), runs at 150W once on-- Will NOT turn on (PEAK over 2,700W):--- Home AC starts at 4,000W (peak), runs at 1,000W once onMost devices power on at a higher (Peak) wattage than when they are already on (Continuous). Therefore, if its peak exceeds the power station's max, it may not be able to start- Continuous Output (Running): Once devices are on, as long as they keep drawing less than 1,200W total, they will stay ON until the battery runs out-- CONTINUES running (under 1,800W)--- 100W TV + 60W laptop = 160W-- COULD STOP running (over 1,800W)--- Temporary overdrawing beyond 1,800W for a few seconds is okay. A quality BMS will protectively shut down the battery if the surge does not end after a while. Regularly going over for a prolonged time can ruin the battery in the long run--- 1,000W machine (2,100W peak) + 300W appliance (500W peak) + 700W appliance (900W peak) = 2,000W. Probably will stay on for a short period---- Add 1,000W mower (1,400W peak) = 2,300W. Battery will definitely shut downCALCULATIONSThe below calculations are rough ESTIMATES as conditions, battery quality, and age can vary. [SORRY: I had to shorten my original review by a LOT (including many calculations) so it could fit here on Amazon.]Time to Charge This 1,024Wh Power Station- Calc: Hours to charge battery = Battery capacity (Wh) / Input Wattage-- As battery approaches 75% full, the input charge will increasingly be slowed down to prevent overcharging- AC Wall: 1180W @ 52 mins [1024 Wh / 1180W]- 12V Car Charger-- 120W @ 8.6 hrs (at 10A, if car supports it)Charge Time with Solar- Calc: Hours to charge battery = Battery capacity (Wh) / (Panel Wattage x [0.5 or 0.75])-- In a perfect lab, 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: as fast as 6.9 hours [1024Wh / (200W x 0.75)]- Underproduction: If a panel is not making enough, adding extra ones can generate a higher, combined output- Overproduction: If the panels make more than the maximum the power station charge port can take, only the max 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 120WIdeal Battery Power Station Size- Calc: Battery capacity (Wh) = Watts used by device x Hours needed for / 0.85-- 10-15% of power is lost during power conversion- 45W car fridge needed for 8 hours: Minimum 424Wh power station (45W x 8 / 0.85)FINAL THOUGHTSEcoFlow thoroughly impressed us with their Delta Pro power station and quickly added the company to our list of recommended battery providers. Their newest Delta 2, now a LiFePO4 product, further surprised us with 1,200W rapid-charging that took the battery from 0 to 80% in a whopping 50 minutes! Had we not seen that in person, we would have dismissed it as a marketing gimmick, but we were proven wrong. Add to that the ability to have its capacity and features expanded with additional products, and the Delta 2 makes for a VERY compelling choice against Goal Zero’s own Yeti 1000x that is starting to show its age. Jackery, on the other hand, is extremely difficult to recommend against the Delta 2, except that they have excellent customer service and consumer-friendly policies.
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Top reviews from the United States

Reviewed in the United States on November 30, 2022
Style: DELTA 2Verified Purchase
143 people found this helpful
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Reviewed in the United States on August 16, 2023
Style: DELTA 2Verified Purchase
25 people found this helpful
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Reviewed in the United States on February 21, 2024
Style: DELTA 2Verified Purchase
6 people found this helpful
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Top reviews from other countries

Marcello
5.0 out of 5 stars Cool little power station
Reviewed in Canada on January 24, 2023
Style: DELTA2+220WVerified Purchase
One person found this helpful
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Gary Hans
1.0 out of 5 stars Battery Failaure after only using it 3 or 4 times
Reviewed in Canada on March 2, 2024
Style: DELTA2+220WVerified Purchase
Gregory H.
5.0 out of 5 stars Simple to use. Performance as advertised.
Reviewed in Canada on April 25, 2023
Style: DELTA 2Verified Purchase
15 people found this helpful
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m hannem
5.0 out of 5 stars Ecolow batteries
Reviewed in Canada on November 6, 2023
Style: DELTA 2Verified Purchase
3 people found this helpful
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Shannon Hall
3.0 out of 5 stars WORST solar panel "stand" ever designed
Reviewed in Canada on June 25, 2023
Style: DELTA2+220WVerified Purchase
One person found this helpful
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