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Non-returnable. Transportation of this item is subject to hazardous materials regulation
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Availability:
In Stock.
Arrives
Friday, Oct 30
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At a glance
- Condition
- New
- Style
- Delta 3 Extra Battery
- Model
- Serie DELTA 3 Batería Adicional
- Dimensions
- 16 x 8 x 8 in
- Weight
- 12.5 kg
- Item Type Name
- power station
- Voltage
- 110 V AC
- In the box
- Delta 3 Series Smart Extra Battery
- Warranty
- 5 Year Manufacturer
Features 5
- Increase the capacity of DELTA 3 Plus/DELTA 3 with an extra 1024Wh.
- * This Delta 3 Series smart extra battery (1024Wh) is only compatible with power station Delta 2/Delta 3/Delta 3 Plus/Delta 3 1500.
- * The Delta 3 Smart Extra Battery cannot be used as an expansion battery pack for the Delta 3 Classic. The Delta 3 Classic does not have an expansion port to connect an additional battery, so it is not compatible with the Delta 3 Smart Extra Battery.
- Get 10 years of daily use until it hits 80% of its original capacity. Embrace 3000+ charging cycles enabled by the LFP battery chemistry.
- Plug-and-play system. Use the EcoFlow app to monitor and control the DELTA 3 Smart Extra Battery.
Specs 17
| Number of Batteries | 1 Lithium Ion batteries required. (included) |
|---|---|
| Brand | EF ECOFLOW |
| Battery Cell Composition | Lithium Ion |
| Recommended Uses For Product | Commercial |
| Unit Count | 1 Count |
| Model Number | Serie DELTA 3 Batería Adicional |
| Model Name | EF-DL-E10 |
| UPC | 842783143211 |
| Manufacturer | EcoFlow |
| Item Type Name | power station |
| Voltage | 110 V AC |
| Reusability | Rechargeable |
| Battery Weight | 9690 g |
| Item Dimensions | 16 x 8 x 8 inches |
| Item Weight | 12.5 kg |
| Antenna Location | Commercial |
| Battery Cell Type | Lithium Ion |
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Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, Oct 30
This item is non-returnable:
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
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Top Amazon Reviews
Excellent expansion battery
Awesome upgrade for my Ecoflow systems. Fast charging through all of my units, compatibility with the Delta 3 is great, lightweight, can move it around wherever I put the main unit with ease, and easy to get set up. An amazing value, especially with the summer sale!
Reviewed in the United States on July 2, 2026 by Joshua Spinney
Amazing performance and bonus features!
I have this, along with the extra battery add-on acting as a UPS for my network server rack. I've had it for 3 months and it's been EXCELLENT! As a bonus, after I installed it, I discovered it can auto switch to supply the servers with battery power only based on my electric providers rate plan. I don't use any grid electricity now from 4-7pm when rates are highest. The performance has been so stellar, Im gearing up to purchase the EcoFlo home battery setup.
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Reviewed in the United States on July 19, 2026 by Chad Bowers
Great backup
Great back up power.
Reviewed in the United States on September 25, 2026 by Tom Rutledge
Double the Power!
Excited to finally have ordered the extra battery. I live in a microcamper full time and realized my power needs were more than I originally expected. The Delta 3 Plus was a great add on to save my vehicles battery, but needing to start the car to charge it was starting to use a lot of fuel. With the addition of this extra battery, the alternator charger (I recommend the 500w for most vehicles), and a solar panel, I'll never be without power again despite my gaming addiction. Just remember the Delta 3 Plus can only take one additional battery ^.^
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Reviewed in the United States on June 24, 2026 by Amberozia Raykin
Catch on sale to add capacity
Doubles the capacity of my delta 3. Plug and play connection. Primarily have for extended emergencies for basic light, phone recharge, microwave and most importantly the coffee maker, lol. Haven’t tried solar charging the whole system yet. Side note: shipped from EcoFlow by FedEx and their tracking is nonexistent.
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Reviewed in the United States on September 30, 2026 by Todd White
The EcoFlow Delta 2 Generator and the EcoFlow Generator does work together
The EcoFlow Delta 3 battery works well with the EcoFlow Delta 2. What you may need to know is that: 1. You need to connect it to your EcoFlow Delta 2 or Delta 3 to charge it. 2. The cord that comes with the EcoFlow Delta 3 battery is not flexible, making it awkward to plug into the EcoFlow Delta 2 generator side charging port. 3. If you have the EcoFlow app on any of your devices, when your Delta 2 generator and Delta 3 battery plugged in and turned on, the Delta 3 battery will automatically be added to the app. 4. The EcoFlow Delta 3 battery will start to charge and if you press on the right facing arrow on the app beside the EcoFlow Delta 2 generator, you will see both the Generator and the Battery charging status and also, the length of time it will take to charge both. 5. Look at the front screen on your EcoFlow Delta 2 and look for the battery icon. This lets you know your Delta 3 battery is charging. If you don't see the battery icon on the screen, the battery is not charging. 6. The EcoFlow Delta 3 battery does not come with instructions. I had to look at a YouTub videos to figure all this out.
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Reviewed in the United States on July 14, 2026 by V. Price
BEWARE SCAM RIP OFF. I BOUGHT 4 OF THESE UNITS AND THEN 4 OF THE EXTRA EXPANSION BATTERIES,
BEWARE SCAM RIP OFF. I BOUGHT 4 OF THESE UNITS AND THEN 4 OF THE EXTRA EXPANSION BATTERIES, WHICH IS SUPPOSED TO DOUBLE THE UNIT'S OVERALL POWER TIME IN CASE OF A POWER FAILURE. WHEN YOU PLUG IT IN TO YOUR HOME POWER AFTER IT CHARGES TO FULL, IT WILL GIVE YOU A DISPLAY READING OF 5.5 DAYS OF POWER IN CASE OF A POWER FAILURE. THIS IS FALSE. TO SEE THE REAL TIME OF POWER YOU WILL HAVE IN A POWER FAILURE, PLUG IN ALL YOUR DEVICES YOU WOULD LIKE TO STAY ON IN A POWER FAILURE. THEN UNPLUG THE POWER CORD FOR YOUR ECOFLOW FROM YOUR HOME POWER. THEN WATCH THE ECOFLOW DISPLAY THAT WAS JUST READING 5.5 DAYS OF POWER REMAINING. IF YOU HAVE JUST ONE SMALL A/C UNIT OR ONE SMALL HEATER OR ONE TV OR ONE SMALL APPLIANCE THAT 5.5 DAYS OF EMERGENCY POWER WILL DROP BY 90% TO JUST A FEW HOURS OR LESS THAN A FEW HOURS OF POWER REMAINING IN A POWER FAILURE OR LESS THAN A FEW HOURS. THEY REASON THE DISPLAY INITIALLY SHOWS YOU FIVE POINT FIVE DAYS OF POWER IS TO FOOL YOU INTO THINKING, YOU ACTUALLY HAVE 5.5 DAYS OF POWER. WHEN, IN FACT, THAT'S COMPLETELY FALSE. AND YOU CAN SEE IT YOURSELF WHEN YOU UNPLUG THE ECOFLOW FROM YOUR HOME POWER AND THEN START PLUGGING IN APPLIANCES AND WATCH HOW VERY FAST YOUR 5.5 DAYS TURNS INTO JUST A FEW HOURS OR JUST A FEW MINUTES.
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Reviewed in the United States on October 3, 2026 by Paul Paul
More Juice!
Gave me extra capacity so that my ECOFLOW Delta 3 can run a little longer. I have a small solar array that charges the batteries, and I'm running a few items in my garage, like my garage door opener and a mini fridge to keep my beer cold. If I ever have a power outage, I'll be able to open my garage door and drink a cold beer. ;)
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Reviewed in the United States on September 2, 2026 by Kevin