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 Sep 10 - Sep 15

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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 ★★★★★
Based on 13 reviews
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Pinky
Massapequa, US
★★★★★ 5
Great for sensitive skin!
Size: 60 Count (Pack of 12)
We absolutely love these water wipes! They’re so gentle on my baby’s skin and have never caused any irritation or redness. I love that they’re mostly water and don’t have a strong smell or harsh ingredients. They’re soft but still durable enough to clean really well without falling apart. I also appreciate that they don’t feel overly wet or soapy just clean and simple.These have become our go-to wipes, especially for sensitive skin. If you’re looking for something gentle, effective, and safe for your little one, I definitely recommend these!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 23, 2026
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Verified Purchase
laura m.
Lexington, US
★★★★★ 5
Gentle and Simple Ingredients
Size: 60 Count (Pack of 5)
I’ve tried what feels like every brand of baby wipes out there, and WaterWipes have honestly stood out the most for us. What I love right away is how simple they are just water-based and minimal ingredients, which made me feel a lot better about using them on my baby’s sensitive skin, especially during those early months when everything seemed to cause irritation. We’ve used them for diaper changes, messy feedings, sticky hands, and even quick face cleanups, and they’ve held up really well. They’re gentle but still effective, which I didn’t always expect from a “clean” wipe. Some natural wipes I’ve tried in the past felt too dry or didn’t clean well enough, but these strike a really nice balance. I also appreciate that they don’t have a strong scent. It’s just clean and subtle, which is perfect when you’re changing multiple diapers a day and don’t want anything overwhelming. My baby’s skin has stayed calm with them, no redness or reactions, which has been a huge relief. You get a lot for the price too.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026
N
Verified Purchase
Nassyikat Zh
Lexington, US
★★★★★ 5
Sensitive skin wipes
Size: 60 Count (Pack of 3), Size: 60 Count (Pack of 3)
These are the best wet wipes I've been using for three months, they don't smell and are very soft, just for the baby's sensitive skin🙈I like it!
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Reviewed in the United States on May 17, 2026
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Verified Purchase
Lucky
Dallas, US
★★★★★ 5
Pure, Gentle, and Perfect for Sensitive Skin — Great for Cleaning Baby Hands & Mouth
Size: 60 Count (Pack of 4)
Summary: These WaterWipes Sensitive+ wipes are incredibly gentle and ideal for babies with delicate or sensitive skin. With only two ingredients, they clean well without irritation and are perfect for everyday use on hands, face, and small messes. Details: I’ve been using WaterWipes for a while, and these Sensitive+ wipes continue to impress me. They’re made with 99.9% purified water and just a drop of fruit extract, making them one of the purest wipes available. I mainly used them for cleaning my baby’s hands and mouth, and they worked wonderfully without any redness, dryness, or irritation. These upgraded wipes are now thicker, softer, and 2x stronger, which makes a noticeable difference. They don’t tear easily, even when dealing with sticky or messy situations. The texture is soft enough for newborn skin, yet durable enough to handle everyday cleaning. Because they have a neutral pH, they help maintain the skin’s natural barrier — a huge plus for babies prone to sensitivity or eczema. They’re dermatologist-tested, accepted by the National Eczema Association, and free of fragrance, alcohol, and harsh chemicals. It’s reassuring to know that what you’re using is safe and gentle. Another advantage is that they’re plant-based and plastic‑free wipes, making them a better option for eco-conscious parents. They also come in convenient packs that are easy to carry in diaper bags, keep in the car, or store around the house. If I had to mention an improvement, the only thing would be adding a resealable hard-top lid to help keep wipes from drying out — though the soft packs still work fine if sealed properly. What I liked • Extremely gentle — perfect for hands, mouth, and face • Only two ingredients: purified water + fruit extract • Thicker and stronger than older versions • Hypoallergenic, fragrance‑free, alcohol‑free • Suitable for eczema‑prone and sensitive skin • Plant-based, dermatologically approved What could be better • A hard plastic lid would help prevent drying out
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Reviewed in the United States on January 30, 2026
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Verified Purchase
Mona
San Leandro, US
★★★★★ 5
Clean ingredients
Size: 60 Count (Pack of 9)
Love those wipes. I’ve been using them for 2 months old, they’re strong they don’t shed, they cause any skin irritation. The only negative thing is sometimes the wipes stick together. But overall it’s worth the money.
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Reviewed in the United States on March 24, 2026

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