EF ECOFLOW DELTA 2 Max Power Station
EF ECOFLOW

EF ECOFLOW DELTA 2 Max Power Station

$999.00across 3 retailers
Model: EFD350Color: Black&GreyUPC: 842783128706
Lowest price
$999.00 at Amazon
Price seen May 10, 2025

Where to Buy

Newest price seen: Jul 21, 2026
RetailerPriceLast seenBuy
amazon logo
amazon
Sold by EcoFlow Inc.
$999.00May 10, 2025, may have changedBuy Now
Best Buy logo
Best Buy
15-day returns (in store too) · free return shipping · free shipping on $35+
$1,699.99Jul 21, 2026, may have changedBuy Now
qvc logo
qvc
30-day returns
$1,899.00Oct 5, 2025, may have changedBuy Now

Prices are collected from retailer listings; each row shows the date we last saw that price. Return and shipping terms are each store's standard policy from our retailer research (April 2026). Some products and categories have different terms, so check with the store before you buy.

Pros

  • •Offers a powerful 2048Wh capacity, suitable for running multiple critical appliances during outages.
  • •Features efficient and diverse charging options: AC, solar, and vehicle, with a quick recharge time of around 1 hour.
  • •Includes comprehensive app support for telemetry and configuration, with customizable charge/discharge settings.
  • •Provides a virtually silent operation, making it suitable for indoor use without disturbance.
  • •Can be expanded with additional batteries, enhancing its total capacity for extended power use.
  • •Supports easy integration with solar panels, eliminating the need for additional charge controllers.
  • •Delivers a pure sine wave output, verified by oscilloscope testing, for safe and efficient power delivery.
  • •Strong and reliable battery technology with Lithium Iron Phosphate (LFP), offering up to 3000 cycles.
  • •Includes a variety of output ports including USB, DC, and AC, providing versatility in use.
  • •Lightweight enough for portability with built-in handles, despite its substantial power capability.

Cons

  • •Some users reported initial failures such as non-functional units upon arrival and battery failure soon after first use.
  • •Solar charging setup can be complex, requiring specific panel configurations and significant wiring.
  • •Issues with solar charging not auto-starting immediately were mentioned by some users.
  • •Concerns over quality control, with reports of poor performance and returns due to non-functionality.
  • •Customer service experiences were mixed, with slow processing times for returns and replacements.
  • •Product considered overpriced by some, given the experiences, and deemed not entirely dependable.
  • •Potential challenges in achieving maximum solar input due to the charge controller's limitations.
  • •Return process noted as cumbersome due to hazardous material classification of the battery.

Bottom Line

The EF ECOFLOW DELTA 2 Max portable power station delivers substantial power capabilities and versatile uses, ideal for those seeking a reliable backup power solution. Its quick recharge, comprehensive app integration, and expansion potential make it appealing. However, quality control and solar charging complexities may be concerns for some users. It's advisable to assess the compatibility and setup requirements if planning to rely on solar power extensively, and closely review customer feedback if considering the purchase.

Read full expert review

What Reviewers Are Saying

Praised
great product14%
easy to recharge9%
high wattage for size5%
powerful backup solution5%
Criticized
poor customer service23%
battery failure14%
dead on arrival5%
not dependable5%
software bugs5%

Discussion

🔍About This Page

ShopSavvy compares prices across thousands of retailers so you always get the best deal. Prices are collected from retailer listings, and each one shows the date we last saw it. Our expert reviews and community discussion help you make informed buying decisions.

🔥 Trending Deals