SKU: 26784564705

EcoFlow DELTA 2 Max Smart Extra Battery

Sale price$314.55 Regular price$349.50
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Ships within 48 hours · Estimated delivery Jul 13 - Jul 18

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Description

EcoFlow DELTA 2 Max Smart Extra BatteryBoost the runtime of your EcoFlow power system with the DELTA 2 Max Smart Extra Battery. Designed to connect seamlessly with DELTA 2, DELTA Max, and DELTA 2 Max power stations, it offers an additional 2048Wh of energy to support home backup, outdoor power, and off grid use. Featuring advanced LFP battery technology for a long service life and consistent performance, this expansion battery is a smart and budget friendly way to scale your energy

Boost the runtime of your EcoFlow power system with the DELTA 2 Max Smart Extra Battery. Designed to connect seamlessly with DELTA 2, DELTA Max, and DELTA 2 Max power stations, it offers an additional 2048Wh of energy to support home backup, outdoor power, and off-grid use. Featuring advanced LFP battery technology for a long service life and consistent performance, this expansion battery is a smart and budget-friendly way to scale your energy storage. Use the EcoFlow app for easy real-time monitoring and management — no complex setup required.

Expandable capacity

Increase the capacity of DELTA 2 Max with an extra 2048Wh.

Triple the power

2-6kWh expandable capacity to fit your energy storage needs. Add up to two DELTA 2 Max Smart Extra Batteries to gain a capacity of 6144Wh, ideal for home backup, RVing, outdoor adventures, and everyday use. Much more affordable, it costs up to 30% less than a power station of the same capacity.

10-Year Long-lasting LFP Battery

Durable, Safe, Lightweight

With its upgraded LFP battery chemistry, the DELTA 2 Max Smart Extra Battery has a lifespan of 3000 complete cycles until it reduces to 80% capacity. You'll get pretty much 10 years of power, even if you use it every day. That's 6x— longer than other power stations with a similar capacity and output.

Easy to use

There's no setup. Just plug it into your power station for more energy storage. Using the EcoFlow app, you can charge and monitor the DELTA 2 Max Smart Extra Battery with ease.

Stackable, space-saving design

Featuring an ergonomic, compact design, the DELTA 2 Max Smart Extra Batteries can be securely stacked on top of power stations and each other to save space and minimize clutter.

Features

  • Expandable Storage Capacity — Adds an extra 2048Wh to DELTA 2, DELTA Max, and DELTA 2 Max models.
  • Up to 30% More Cost-Efficient — Expand power from 2-6kWh by linking up to two DELTA 2 Max Smart Extra Batteries for a total of 6144Wh storage capacity — with savings compared to buying a larger standalone power station.
  • Long-Lasting LFP Battery — Built for 10 years of daily use with over 3000 charging cycles, maintaining up to 80% of original capacity.
  • hassle-free setup — Plug-and-play design plus app control for easy monitoring and power management through the EcoFlow app.

Specifications

General

  • Model: EFD350-EB
  • Weight: 42 lbs
  • Dimensions: 18 in x 9 in x 11 in
  • Capacity: 2,048Wh

Input

  • Extra Battery Port Input: 51.2V = 2000W Max

Output

  • Extra Battery Port Output: 51.2V = 3,200W Max

Battery Details

  • Type: LFP (Lithium Iron Phosphate)
  • Cycle Life: 3,000 cycles to 820% + capacity (kept exactly as given)
  • Protection Systems:
  • Over Voltage Protection
  • Overload Protection
  • Over Temperature Protection
  • Short Circuit Protection
  • Low Temperature Protection
  • Low Voltage Protection
  • Overcurrent Protection

Operating Conditions

  • Optimal Operating Temperature: 68°F to 86°F
  • Discharge Temperature Range: 14°F to 113°F
  • Charging Temperature Range: 32°F to 113°F

Warranty

Energy Systems Central Stores is an authorized retailer of EcoFlow products. Because of this, we pass on EcoFlow's manufacturer 5-Year warranty to you.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 26784564705

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4.3 ★★★★★
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Paige
Omaha, US
★★★★★ 5
My dog’s favorite toy
Color: Squeaker Matz Gator, Size: 2X-Large (Pack of 1), Color: Squeaker Matz Gator, Size: 2X-Large (Pack of 1)
This is my dog’s favorite toy! She carries it around everywhere and loves the squeaker. It’s a great size and keeps her entertained for a while. Holds up pretty well too, especially for how much she plays with it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026
J
Verified Purchase
Jennifer Kalstrom
Belleville, US
★★★★★ 5
"Gator" under supervision for husky pup is loads of fun for her.
Color: Squeaker Matz Gator, Size: X Large (Pack of 1), Color: Squeaker Matz Gator, Size: X Large (Pack of 1)
Fun loving hyper 7 month old female husky whose an aggressive chewer loves her "Gator". She loves the squeakers, does chew on any & all parts of her toy as she like many textures from soft/fuzzy to hard. 1st Gator we got her lasted a few months. She did chew threw a good amount, it did get dirty & most of the 16 squeakers were missing but I saved like 5 of them & sowed them back in. Once she started chewing thru the head & into the stuffing we ordered a replacement & she's so happy. I have 1 picture of the Gator though it might not look like it's done it was. Zero squeakers remaining, head has 1/2 stuffing removed, torn stitches but not enough where the body could come apart. She managed to eat the stuffing but she was not hurtful & we were able to stop her each time. I recommend "Gator" w/ supervision if you have an aggressive chewing pup. It's durable enough for some tugging & "fetch". It advertised "encourages digging" @ the squeaker but she didn't. She tugged, chomped' "fetch" & whipped the toy w her head but had a blast every time. She actively searches for Gator when she wants to play w/ her toys. 16 squeakers.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2021
M
Verified Purchase
Martha Gonzalez
Louisville, US
★★★★★ 1
Toy disintegrates - a hazard for dogs
Color: Squeaker Matz Gator, Size: 2X-Large (Pack of 1), Color: Squeaker Matz Gator, Size: 2X-Large (Pack of 1)
I buy these types of toys for my dogs. They rip them apart and pop the squeakers, having a great time. This is the third time over the past 2 or 3 years I've bought this particular toy. The quality has fallen off a cliff. Whenever my dogs shake it, flecks of the material fly off. These small pieces are very difficult to vacuum and, more seriously, get caught in my dog's teeth and throat. This never happened before, and they actually still have an old version that I occasionally resew with replacement squeakers. If you've bought this toy in the past couple of years, know that this is not the same product.
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Reviewed in the United States on May 3, 2026
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Verified Purchase
Wanda
Lake Worth, US
★★★★★ 5
Dog toy
These worked really good - they are made of a good quality denim like material seems dirty so far have only had them about a month.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 3, 2025
D
Verified Purchase
DocMom2Four
Louisville, US
★★★★★ 5
Very Sturdy and Safe for Tough Chewers
Style: Muskie
We already had a smaller fish toy from this brand, and after 4 months it is, amazingly, still intact. So we ordered this larger one as a holiday present. Our dog usually can rip apart any toy, even "tough chewer" toys, within a few minutes or hours, so this brand is a definite keeper for us. We have also had their giraffe toy for 4 months with no rips or holes. The best part is that there is no stuffing to worry about. Inside the toy is a rope toy instead of stuffing, so it is so much less risky. Highly recommended.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 30, 2024

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