EcoFlow DELTA 3 Plus Review: The New Mid-Range King

The EcoFlow DELTA 3 Plus is the successor to the wildly popular Delta 2, and it improves on nearly every metric while actually dropping the price. If you’re shopping for a 1kWh power station in 2026, this is the one to beat.

Key Specs at a Glance

• Capacity: 1,024Wh (expandable to 5kWh)
• Output: 1,800W (3,600W X-Boost)
• Weight: 27.6 lbs
• Charge Time: ~56 minutes (wall outlet)
• Battery Type: LiFePO4 (4,000+ cycles)

Who Is It For?

Everyone. The DELTA 3 Plus is genuinely versatile — campers, RV owners, home backup users, and remote workers will all find it useful. The UPS functionality makes it especially valuable as a home office backup.

The Fastest in Its Class

56 minutes from empty to full. The DELTA 3 Plus narrowly beats the Anker SOLIX C1000 (58 minutes) for the fastest charge time in the 1kWh class. In practical terms, you can charge it during a lunch break and have a full battery for the afternoon.

UPS Functionality

The built-in Uninterruptible Power Supply (UPS) switches to battery power in under 10 milliseconds during an outage. That’s fast enough to keep computers and networking equipment running without interruption. Plug your home office into the DELTA 3 Plus, and you’ll never lose work to a power blip.

Expandable to 5kWh

Unlike the Anker C1000 or Jackery 1000 v2, the DELTA 3 Plus supports expansion batteries. You can scale up to 5kWh, transforming it from a camping companion to a serious home backup system. The flexibility to grow makes it a better long-term investment.

4,000+ Cycle Battery

The LiFePO4 battery is rated for 4,000+ cycles — that’s more than the 3,000+ cycles offered by the Anker C1000 and Bluetti AC180. If you use it daily, the battery will outlast most people’s interest in owning the device.

How It Stacks Up

At $649, the DELTA 3 Plus undercuts the older Delta 2 ($849) while offering LiFePO4 chemistry, longer battery life, faster charging, and UPS functionality. It’s a straightforward upgrade in every way.

What Could Be Better

The lack of a 12V car outlet is a notable omission for RV users. The fan noise during ultra-fast charging is audible. And at 27.6 lbs, it’s not the lightest option — the Jackery 1000 v2 at 22 lbs and Anker C1000 at 26.9 lbs are both lighter.

The Bottom Line

The EcoFlow DELTA 3 Plus is the best overall portable power station in the 1kWh class for 2026. It combines the fastest charging, longest-lasting battery, UPS functionality, and expandability — all at the lowest price. This is our top recommendation for most buyers.

How does it compare? See our head-to-head matchups: DELTA 3 Plus vs standard DELTA 3 | DELTA 3 Plus vs Anker SOLIX C1000 | DELTA 3 Plus vs Anker C1000 Gen 2 | Best power stations under $600