EcoFlow DELTA 3 vs DELTA 3 Plus: Is the Plus Worth $130 More?

The EcoFlow DELTA 3 and DELTA 3 Plus share the same 1,024Wh LiFePO4 platform, the same 56-minute charge time, and the same expandability to 5kWh. They look nearly identical. So why does the Plus cost $130 more? We break down every difference to help you decide.

Specs at a Glance

Feature	DELTA 3	DELTA 3 Plus
Capacity	1,024Wh	1,024Wh
AC Output	1,800W / 3,600W surge	1,800W / 3,600W surge
X-Boost	Up to 2,200W	Up to 2,200W
Weight	27.6 lbs	27.6 lbs
Battery	LiFePO4 (4,000+ cycles)	LiFePO4 (4,000+ cycles)
AC Charge Time	56 minutes	56 minutes
Solar Input	500W max	500W max
AC Outlets	6	6
USB-C	2x 100W	2x 100W
USB-A	2x 18W	2x 18W
IP Rating	IP65 battery	IP65 battery
UPS Switchover	10ms	10ms
Expandable	Yes (to 5kWh)	Yes (to 5kWh)
Noise	Under 30dB (below 600W)	Under 30dB (below 600W)
Price	$519	$649

What the Plus Adds

The DELTA 3 Plus includes incremental upgrades over the standard model:

1. Higher-rated DC outputs: The Plus has a beefed-up car outlet and DC ports for running more demanding 12V accessories
2. Marginally better port specs: Slightly improved USB-A fast charging support
3. Premium positioning: Often bundled with accessories or solar panels at better combo pricing

These differences are real but minor. For most use cases — charging phones, running a laptop, powering a fridge during an outage, or camping — the standard DELTA 3 performs identically.

Where They Are Identical

The core experience is the same:

• Same capacity: 1,024Wh of LiFePO4
• Same charge speed: 56 minutes from empty to full
• Same battery life: 4,000+ cycles to 80%
• Same expandability: Both accept Smart Extra Batteries up to 5kWh
• Same IP65 battery: Dust and water-jet protection
• Same quiet operation: Under 30dB at low loads
• Same UPS: 10ms switchover for computer backup
• Same EcoFlow app: Full monitoring, scheduling, and firmware updates

The Price Math

The $130 difference buys you marginal DC port improvements. On a per-feature basis:

• Standard DELTA 3 at $519: $0.51 per Wh — best value in the 1kWh class
• DELTA 3 Plus at $649: $0.63 per Wh — still competitive but not the value leader

For context, the Anker SOLIX C1000 Gen 2 sits at $470-799 depending on sales, and the Bluetti AC70 comes in at $499 for 768Wh.

The Verdict

Buy the DELTA 3 if: You want the best value in the 1kWh LiFePO4 class. It matches the Plus on every spec that matters for 90% of buyers — capacity, charging speed, battery life, expandability, and quiet operation — while saving $130.

Buy the DELTA 3 Plus if: You specifically need the higher-rated DC outputs for demanding 12V accessories, or you find a bundle deal that closes the price gap (EcoFlow frequently bundles the Plus with solar panels at attractive combo pricing).

Our recommendation: The standard DELTA 3 is the smarter buy for most people. Save the $130 and put it toward a solar panel or an expansion battery.

Frequently Asked Questions

Can I use DELTA 3 expansion batteries with the DELTA 3 Plus, and vice versa?

Yes. Both models use the same Smart Extra Battery ecosystem. Batteries are fully cross-compatible between the DELTA 3 and DELTA 3 Plus.

Which is better for home backup?

Both are equally capable. The 1,024Wh capacity, 10ms UPS switchover, and expandability to 5kWh make either model a solid home backup choice. Save money with the standard DELTA 3 and invest the difference in an expansion battery for more capacity.

Is the DELTA 3 loud?

No. Both models operate under 30dB at loads below 600W — quieter than a whisper. Fan noise increases at higher loads but remains reasonable.

How do these compare to the Anker SOLIX C1000 Gen 2?

The Anker C1000 Gen 2 offers 2,000W output (vs 1,800W), 140W USB-C PD 3.1 (vs 100W), and a 49-minute charge (vs 56 minutes). The DELTA 3 counters with expandability to 5kWh, IP65 battery protection, and a lower sale price at $519. See our C1000 Gen 2 vs DELTA 3 Plus comparison for more details.