Delta Pro vs Delta Max – Which Should You Choose?

Delta Pro vs Delta Max – Which Should You Choose?

When shopping for a high-capacity portable power station, two of EcoFlow’s most popular models are the Delta Pro and the Delta Max.
Both are powerful, reliable, and solar-ready — but they’re designed for slightly different needs.

This guide compares them in detail so you can make the right choice.

1. Capacity & Expandability

Feature Delta Pro Delta Max
Battery Capacity 3,600Wh (expandable to 25,000Wh) 2,016Wh (expandable to 6,048Wh)
Battery Type LiFePO₄ (3500+ cycles to 80%) NCM (800+ cycles to 80%)
Expansion Options Extra battery, Smart Generator, solar Extra battery, Smart Generator, solar

Verdict: If you need whole-home backup or want the longest battery lifespan, the Delta Pro is the better choice.
For shorter outages or smaller setups, the Delta Max is more than enough.

2. Output Power

Feature Delta Pro Delta Max
Inverter Output 3,600W (7,200W surge) 2,400W (5,000W surge)
240V Support Yes (via two units + hub) No

Verdict: Delta Pro can run more demanding appliances — central AC units, heavy power tools, well pumps.
Delta Max handles refrigerators, lights, microwaves, smaller ACs, and most household items.

3. Charging Speed

Both support fast AC charging and solar charging, but Delta Pro offers more input options, including EV charging stations.

  • Delta Pro: Charges from 0–100% in ~1.8 hours (AC), up to 1,600W solar input

  • Delta Max: Charges from 0–100% in ~1.8 hours (AC), up to 800W solar input

Verdict: Delta Pro’s higher solar input means faster recharging off-grid.

4. Portability

Feature Delta Pro Delta Max
Weight 99 lbs (45 kg) 48 lbs (22 kg)
Wheels/Handle Yes No

Verdict: Delta Max is easier to move, but Delta Pro includes wheels for rolling — important for larger units.

5. Price & Value

  • Delta Pro: Higher upfront cost, but longer lifespan (LiFePO₄) and greater capacity = better for long-term ROI.

  • Delta Max: Lower cost, great for households that want dependable backup without over-investing.

6. Who Should Choose Each?

Choose Delta Pro if:

  • You want whole-home backup during extended outages

  • You need to power high-demand appliances or tools

  • You want the longest battery life and highest resale value

  • You may integrate into a solar home system or RV

Choose Delta Max if:

  • You need occasional backup power for essentials

  • Portability and weight are priorities

  • You want lower upfront cost but still solid capacity

  • You’ll use it for camping, RV trips, or short blackouts

Final Recommendation

If budget allows and you want the most future-proof option, Delta Pro is the clear winner for serious backup and off-grid power.
For households or businesses that need dependable but more portable and affordable power, the Delta Max delivers excellent performance.

Both integrate seamlessly with EcoFlow’s ecosystem, including solar panels, extra batteries, and the Smart Generator — so either choice keeps you prepared.

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