EcoFlow DELTA 2 vs BLUETTI AC240P

Q: Is the AC240P worth $1,140 more than the DELTA 2?

The short answer: yes, if you'll actually use the extra capability. The AC240P costs $1,140 more, but that premium buys you 819Wh more battery capacity (that's 5 extra hours of running a mini-fridge); 600W higher AC output (opening the door to more demanding appliances); a longer-lasting battery rated for 3,500 cycles — that's 10 years at daily use; 700W faster solar charging for quicker off-grid recovery. On a cost-per-watt-hour basis, you're paying $1.05/Wh vs $0.78/Wh. For regular use, we'd pay the premium.

Q: How does the 819Wh capacity difference actually affect daily use?

The AC240P's 1,843Wh battery keeps a mini-fridge running for roughly 10 hours vs the DELTA 2's 6 hours. What specs don't mention: runtime drops 20-30% in cold weather (below 32°F/0°C) as battery chemistry slows down. The AC240P's extra capacity provides a critical cold-weather buffer. For occasional phone and laptop charging, both are overkill. This gap only matters for sustained, multi-appliance use.

Q: Can I actually carry the AC240P, or is the DELTA 2 the only portable option?

At 27 lbs, the DELTA 2 is manageable for one person over short distances: parking lot to campsite, trunk to tailgate. The AC240P at 72 lbs? You'll want a buddy, a wagon, or wheels. For reference, 72 lbs is about the weight of a bag of concrete. If your use case involves any carrying, the DELTA 2 wins decisively.

Q: How fast can each unit recharge from solar panels in real conditions?

On paper, the AC240P accepts 1,200W vs the DELTA 2's 500W of solar input. What the spec sheet won't tell you: solar panels typically deliver only 60-80% of their rated output due to panel angle, cloud cover, and temperature. In realistic conditions, expect full recharge in about 2.2 hours for the AC240P and 2.9 hours for the DELTA 2. That gap widens on cloudy days, when the AC240P's higher input ceiling captures more of whatever sunlight is available. One more thing: summer gives you ~7 productive solar hours per day. Winter drops to ~4. If solar is your primary recharge method, the AC240P's advantage is substantial.

Q: Is EcoFlow or BLUETTI more reliable for long-term ownership?

Both brands have strengths and trade-offs. EcoFlow: Mixed. 2-5 years depending on model (DELTA Pro Ultra line gets 10 years). Some users report smooth claims; others report runarounds. Register your product to extend coverage. BLUETTI: Check manufacturer warranty policy directly One piece of advice from the power station community: regardless of brand, buy from Costco or Amazon. Their return policies provide a safety net that manufacturer warranties alone can't match, especially for a product you'll rely on in emergencies. Both brands use LFP (lithium iron phosphate) batteries in their current lineup, the most proven chemistry for longevity and safety.

Q: Bottom line: should I buy the DELTA 2 or the AC240P?

We'd pay the premium for the AC240P. Yes, it costs more. The capability jump is real: you're stepping into a tier that handles appliances the base model can't start. The DELTA 2 is still solid if budget is the priority, but the AC240P will leave you less likely to wish you'd "gone bigger" six months from now. That regret costs more than the price difference.

Last updated: June 19, 2026

DELTA 2

$799.00

Power Score: 2,782 · Appliance Class

View Current Price

AC240P

$1,939.00

Power Score: 3,388 · Appliance Class

View Current Price

The EcoFlow DELTA 2 (1,024Wh) and BLUETTI AC240P (1,843Wh) sit in different weight classes. The real question: do your power needs justify the larger unit, or would you be overpaying for capacity that sits unused? The AC240P has a slight edge, but the margin is close enough that your use case should break the tie.

What the spec gap means in practice: the AC240P's 2,400W inverter can run a window AC unit, a full-size fridge, or power tools. The DELTA 2's 1,800W inverter will flat-out refuse to start those appliances. On stamina, the AC240P keeps a fridge alive for roughly 10 hours vs the DELTA 2's 6 hours. The cost? Portability. At 72 lbs, the AC240P is heavy enough to make you think twice about moving it. The DELTA 2 at 27 lbs is something one person can actually carry.

Pick the AC240P if your primary use is cpap overnight or remote workday. Go with the DELTA 2 if you need the heavier-duty specs for demanding loads. Most buyers overlook this: the DELTA 2 costs ~$0.26/kWh over its full lifespan, which adds up significantly over years of regular use. Keep scrolling for the full breakdown. The scenario verdicts below hold a few surprises.

Power Station Arena is reader-supported. We may earn a commission when you buy through our links — at no cost to you. Learn more.

The Breakdown

What each unit does well, where it falls short, and the trade-offs that matter.

DELTA 2 Analysis

The 1,800W inverter handles most daily devices like laptops, blenders, and TVs, but will struggle with heating elements that require over 1500W.

Strengths

Save $1,140 vs Competitor
45 lbs Lighter

Trade-offs & Considerations

Weaker inverter (-600W) limits appliance compatibility.

AC240P Analysis

With a massive 2,400W output (and 3,600W surge), the AC240P can run high-wattage appliances like space heaters, hair dryers, and electric grills without tripping. Weighing in at 72 lbs, this is not a unit you want to carry far. It's best suited as a stationary backup or RV companion.

Strengths

Larger Battery Capacity
Higher AC Output Power
Longer Warranty Coverage
Faster Solar Charging

Trade-offs & Considerations

Substantially more expensive (+$1,140) than the DELTA 2.
Significantly heavier (+45 lbs), making it harder to move.

What the Specs Don't Tell You

Hidden gotchas and advantages we spotted that you won't find on the product page.

AC240P: 72 lbs Is a Commitment

Note

At 72 lbs, this is manageable but not fun to carry. That's heavier than a large checked suitcase. Moving it from your car to a campsite requires some effort and flat terrain.

Fan Noise Under Load

Note

The AC240P runs at 45dB (like a running refrigerator), while the DELTA 2 hits 50dB (like moderate rainfall). Most people find anything above 45dB disruptive for sleep. Worth considering if you're running a CPAP or camping in a tent nearby.

UPS Speed: standby (<20ms) vs standby (<20ms)

Note

The AC240P switches to battery in 15ms (standby (<20ms)), while the DELTA 2 takes 20ms (standby (<20ms)). Most electronics handle this fine, but sensitive server equipment may hiccup. This matters if you're using it as a home UPS for always-on equipment.

Warranty Value Comparison

Note

The DELTA 2 gives you 6.3 years of warranty per $1,000 spent, vs the AC240P's 3.1 years. That's 2× more coverage per dollar. An underrated factor if you're keeping this unit for years.

Your Life, Your Pick

We ran the math on six real-world scenarios. Here's which unit survives your actual life.

Weekend Camping

2 nights

Neither

Two nights off-grid with essential comfort

Needs 2,100Wh·DELTA 2: Not enough·AC240P: Not enough

Neither unit can fully handle this scenario (needs 2,100Wh). You'd need a higher-capacity station or to cut back on usage.

8-Hour Blackout

8 hours

Neither

Keep the essentials running through a night without power

Needs 1,645Wh·DELTA 2: Not enough·AC240P: Not enough

Neither unit can fully handle this scenario (needs 1,645Wh). You'd need a higher-capacity station or to cut back on usage.

CPAP Overnight

8 hours

AC240P

Sleep therapy without interruption — the #1 medical use case

Needs 320Wh·DELTA 2: 37% used·AC240P: 20% used

Both are massively overpowered for CPAP. You're using 37% or less. Save $1,140 and buy the cheaper unit; the extra capacity is wasted on a 40W medical device. Instead, invest in a second battery for multi-night camping trips.

Remote Workday

8 hours

AC240P

Full work day off-grid without power anxiety

Needs 910Wh·DELTA 2: Not enough·AC240P: 58% used

The DELTA 2 runs out of juice. It only has 870Wh usable, but this scenario needs 910Wh. The AC240P covers it and still has 44h of phone charging left over.

Tailgate Party

4 hours

AC240P

Game day power for the crew

Needs 670Wh·DELTA 2: 77% used·AC240P: 43% used

Both handle it, but neither is stressed. Tailgating is a light load. The AC240P's extra margin is nice but not decisive here. Consider weight instead: you're carrying this to a parking lot, and 45 lbs makes a real difference when loading up.

Van Life Daily

24 hours

Neither

A full day of mobile living — the ultimate endurance test

Needs 4,685Wh·DELTA 2: Not enough·AC240P: Not enough

Neither unit can fully handle this scenario (needs 4,685Wh). You'd need a higher-capacity station or to cut back on usage.

Will It Power Your Gear?

Real-world runtime estimates for common appliances. Based on 85% inverter efficiency — actual results vary with temperature and load cycling.

Essentials

The basics you need running

Appliance	DELTA 2	AC240P
😴 CPAP Machine 40W draw	21.8h2 full nights	★39.2h4 full nights
📱 Phone Charger 15W draw	58h	★104.4h
📡 Router + Modem 20W draw	43.5h	★78.3h
💡 LED Lights (4 bulbs) 40W draw	21.8h	★39.2h
💻 Laptop (Working) 60W draw	14.5h	★26.1h

Comfort & Convenience

Makes off-grid life actually enjoyable

Appliance	DELTA 2	AC240P
🌀 Box Fan 75W draw	11.6h	★20.9h
📺 LED TV (55") 80W draw	10.9h	★19.6h
🧊 Mini-Fridge 150W draw	5.8h	★10.4h
🛏️ Electric Blanket 200W draw	4.4h0 full nights	★7.8h0 full nights

High-Draw Appliances

These reveal the real limits

Appliance	DELTA 2	AC240P
☕ Coffee Maker 1000W draw	0.9h	★1.6h
🍽️ Microwave 1200W draw	0.7h	★1.3h
🔥 Space Heater 1500W draw	0.6h	★1h

Runtime = (capacity × 0.85) ÷ appliance watts. Actual runtime varies with battery age, temperature, and simultaneous loads.

Expert Verdict

AC240P Edges Ahead on Power Score

These two units are closely matched on individual specs, but our Power Score analysis gives the AC240P the edge with a composite score of 3,388 vs 2,782.

Verdict Confidence4/10

Based on 18+ spec comparisons and real-world performance data

View AC240P Price

Power Score Breakdown

How each unit performs across our segmented benchmarks

Benchmark	DELTA 2	AC240P
Overall Power Score	2,782Appliance Class	★3,388Appliance Class
UPSResponse & Reliability	2,519	★3,029
RV LivingEnergy Density & Output	2,723	★3,444
Home BackupCapacity & Resilience	2,711	★3,458
CPAPSleep Therapy Reliability	2,609	★2,772
Solar GeneratorSolar Input & Efficiency	2,610	★3,321
TailgatingOutlets & Portability	★2,881	2,803
Food TruckSustained Heavy Output	2,927	★3,449
Apartment BalconyCompact Solar Living	2,594	—
CampingLightweight & Versatile	2,586	—

Power Score is our proprietary benchmark calculated from 14 spec dimensions. Higher = better. "—" means the product doesn't meet the minimum threshold for that bench.

Full Specification Breakdown

Feature	DELTA 2	AC240P
Price	★$799.00	$1,939.00
Capacity (Wh)	1024	★1843
Output (W)	1800	★2400
Surge Peak	2700W	★3600W
AC Outlets	★6	3
USB-C Charging Outputs	100W	100W
Solar Input (W)	500	★1200
Weight (lbs)	★27	72
UPS	★Yes (<20ms)	Yes (<15ms)
Charging Cycles	3000	★3500
Warranty (Years)	5	★6
Battery Expansion Feasibility	Yes	Yes
App Control	Yes	Yes
$/Watt Hour	★$.78	$1.05
Noise Level (db)	<50	★45
Solar Input Type	XT60	Standard
USB-A Ports	★4	2
USB-C Ports	2	2
Cost per Wh (calculated)	★$0.78/Wh	$1.05/Wh

Beyond the Specs: Owning It

What happens after you click “Buy” — reliability, brand trust, growth potential, and true cost of ownership.

Lifetime Value

DELTA 2

Purchase Price$799.00

Lifetime Energy Delivery3,072 kWh

Cost per Lifetime kWh★$0.26

Cost per Warranty Year$160/yr

Battery lifespan: 8.2yr daily · 28.8yr weekends · 57.7yr weekly

AC240P

Purchase Price$1,939.00

Lifetime Energy Delivery6,451 kWh

Cost per Lifetime kWh$0.30

Cost per Warranty Year$323/yr

Battery lifespan: 9.6yr daily · 33.7yr weekends · 67.3yr weekly

Both units have similar long-term ownership costs ($0.26/kWh vs $0.3/kWh). The price difference is what you see on the sticker — neither is a hidden bargain or rip-off.

Brand Trust

EcoFlow

Ecosystem

Largest in portable power — 12-15 models across DELTA Pro, DELTA 3, and RIVER 3 series, plus solar panels and smart home panels

Support

US-based phone/email/chat support (1-800-368-8604). Experiences are polarized — many report hassle-free prepaid-label replacements, but others report long waits and refurbished units sent for new claims. Pro tip: buying from Costco or Amazon gives you a stronger return safety net.

Community

Largest community in the space — Reddit r/Ecoflow_community (~31K members), multiple Facebook groups, and an official community forum

App Experience

Rated 4.6/5 iOS (~8,400 ratings) · 4.2/5 Android (~17,000 ratings)

Unique Strength

Fastest-charging technology (X-Stream), deepest product ecosystem, and most active innovation cadence. Supports up to 180kWh modular expansion with DELTA Pro Ultra X.

Worth Knowing

The Oct 2025 DELTA Max 2000 recall (overheating/fire risk, 6 incidents) is worth noting. Also tested subscription paywalls for advanced app features in early 2025 before community backlash paused the plan. No parts or service offered out of warranty.

BLUETTI

Ecosystem

Varies — check manufacturer website for full product lineup

Support

Limited data available — check recent reviews and community forums

Community

Smaller community — fewer independent reviews and user reports

App Experience

Rated Not rated

Unique Strength

Check manufacturer website for differentiators

Worth Knowing

Less established brand — fewer long-term reliability reports available

EcoFlow and BLUETTI are close competitors. Both have established support channels and growing ecosystems. Compare their specific warranty terms and community size for your peace of mind.

Growth Path

DELTA 2

✓ Expandable

Supports expansion batteries from EcoFlow. You can increase capacity without replacing the base unit. A significant long-term advantage.

Accepts up to 500W of solar. Suitable for a 1-2 panel setup.

Generous port selection supports complex multi-device setups.

Expansion batteries are EcoFlow-specific. You're investing in the EcoFlow ecosystem.

AC240P

✓ Expandable

Supports expansion batteries from BLUETTI. You can increase capacity without replacing the base unit. A significant long-term advantage.

Accepts up to 1,200W of solar. Enough for a serious multi-panel array.

Adequate ports for most setups, but heavy users may want a power strip.

Expansion batteries are BLUETTI-specific. You're investing in the BLUETTI ecosystem.

Both units support expansion, but the AC240P's higher solar ceiling (1,200W vs 500W) gives it a stronger off-grid growth path. More solar input means you can add panels as your setup grows.

The Bottom Line

The full picture comes down to this. The AC240P edges ahead on our overall analysis, but the margin is narrow enough that your specific use case should drive the decision. Review the scenario verdicts above — if the DELTA 2 wins in the scenarios that match your life, it's the right choice regardless of aggregate scores.

If neither the DELTA 2 nor the AC240P feels like the right fit, your power needs probably sit outside what these two target. Use our comparison tool above to explore alternatives that better match your specific wattage and runtime requirements. Prices on portable power stations fluctuate frequently. Both EcoFlow and BLUETTI discount regularly, so check the current price before committing. Prime Day and Black Friday pricing typically drops 20-30%.

Frequently Asked Questions

DELTA 2 vs AC240P — answered by our testing team.

Q.Is the AC240P worth $1,140 more than the DELTA 2?

The short answer: yes, if you'll actually use the extra capability. The AC240P costs $1,140 more, but that premium buys you 819Wh more battery capacity (that's 5 extra hours of running a mini-fridge); 600W higher AC output (opening the door to more demanding appliances); a longer-lasting battery rated for 3,500 cycles — that's 10 years at daily use; 700W faster solar charging for quicker off-grid recovery. On a cost-per-watt-hour basis, you're paying $1.05/Wh vs $0.78/Wh. For regular use, we'd pay the premium.

Q.How does the 819Wh capacity difference actually affect daily use?

The AC240P's 1,843Wh battery keeps a mini-fridge running for roughly 10 hours vs the DELTA 2's 6 hours. What specs don't mention: runtime drops 20-30% in cold weather (below 32°F/0°C) as battery chemistry slows down. The AC240P's extra capacity provides a critical cold-weather buffer. For occasional phone and laptop charging, both are overkill. This gap only matters for sustained, multi-appliance use.

Q.Can I actually carry the AC240P, or is the DELTA 2 the only portable option?

At 27 lbs, the DELTA 2 is manageable for one person over short distances: parking lot to campsite, trunk to tailgate. The AC240P at 72 lbs? You'll want a buddy, a wagon, or wheels. For reference, 72 lbs is about the weight of a bag of concrete. If your use case involves any carrying, the DELTA 2 wins decisively.

Q.How fast can each unit recharge from solar panels in real conditions?

On paper, the AC240P accepts 1,200W vs the DELTA 2's 500W of solar input. What the spec sheet won't tell you: solar panels typically deliver only 60-80% of their rated output due to panel angle, cloud cover, and temperature. In realistic conditions, expect full recharge in about 2.2 hours for the AC240P and 2.9 hours for the DELTA 2. That gap widens on cloudy days, when the AC240P's higher input ceiling captures more of whatever sunlight is available. One more thing: summer gives you ~7 productive solar hours per day. Winter drops to ~4. If solar is your primary recharge method, the AC240P's advantage is substantial.

Q.Is EcoFlow or BLUETTI more reliable for long-term ownership?

Both brands have strengths and trade-offs. EcoFlow: Mixed. 2-5 years depending on model (DELTA Pro Ultra line gets 10 years). Some users report smooth claims; others report runarounds. Register your product to extend coverage. BLUETTI: Check manufacturer warranty policy directly One piece of advice from the power station community: regardless of brand, buy from Costco or Amazon. Their return policies provide a safety net that manufacturer warranties alone can't match, especially for a product you'll rely on in emergencies. Both brands use LFP (lithium iron phosphate) batteries in their current lineup, the most proven chemistry for longevity and safety.

Q.Bottom line: should I buy the DELTA 2 or the AC240P?

We'd pay the premium for the AC240P. Yes, it costs more. The capability jump is real: you're stepping into a tier that handles appliances the base model can't start. The DELTA 2 is still solid if budget is the priority, but the AC240P will leave you less likely to wish you'd "gone bigger" six months from now. That regret costs more than the price difference.