You have narrowed home backup down to two brands, and the Bluetti vs EcoFlow question is where most people get stuck. Both sell LiFePO4 power stations on Amazon, both quote thousands of cycles, and both will run your fridge, router and lights through a long outage. The differences show up in price per watt-hour, how each brand counts its warranty, and how far you can expand later.
Bluetti Elite 200 V2
Check the current price on Amazon. Is the cheapest battery in our table, and 2,073.6 Wh with 2,600 W output covers a fridge, router, lights and a few chargers for most of a day. Bluetti lists a 5-year warranty on the page. If you already know you want to grow past 3 kWh, jump to the Apex 300 or DELTA Pro 3 below.
Check price on Amazon →We did the spec reading and the division for you. Below you get a model-by-model match in three size classes (1 kWh, 2 kWh and 3 to 4 kWh), a price-per-Wh table, and a plain verdict. Everything comes from manufacturer pages, not from our own bench tests.
Bluetti is cheaper per watt-hour in every size class we compared, and its Apex 300 matches or beats EcoFlow's DELTA Pro 3 on cycle rating (6,000+ vs 4,000). EcoFlow wins on a larger, more clearly priced expansion ladder and a heavier-duty flagship (DELTA Pro 3, 4,096 Wh). For a first fridge-and-router setup, buy the cheaper per-Wh unit that fits your load. For a system you plan to grow, compare the expansion battery prices before you commit.
Quick comparison
| Product | Best for | Key detail | Price class | |
|---|---|---|---|---|
| Bluetti Elite 100 V2 (1,024 Wh) | Cheapest 1 kWh LiFePO4 option | 1,800 W, 25 lbs, 4,000+ cycles to 80% | $$ · Mid-range | Check price |
| EcoFlow DELTA 3 Plus (1,024 Wh) | 1 kWh with a 5-year warranty | 1,800 W, 27.6 lbs, 4,000 cycles to 80% | $$$ · Premium | Check price |
| Bluetti Elite 200 V2 (2,073.6 Wh) | Lowest price per Wh we found | 2,600 W, 53.4 lbs, 5-year warranty | $$$ · Premium | Check price |
| EcoFlow DELTA 3 Max Plus (2,048 Wh) | 2 kWh with expansion to 10 kWh | 3,000 W, about 49 lbs, 2-10 kWh expandable | $$$ · Premium | Check price |
| Bluetti Apex 300 (2,764.8 Wh) | Home backup with 240 V and modular growth | 3,840 W, 83.8 lbs, 6,000+ cycles | $$$ · Premium | Check price |
| EcoFlow DELTA Pro 3 (4,096 Wh) | Biggest plug-in battery of the two brands | 4,000 W, 113.5 lbs, expands to 48 kWh | $$$$ · High-end | Check price |
Our picks, one by one
Bluetti Elite 100 V2 (1,024 Wh)Bluetti: Cheapest 1 kWh
Bluetti's page lists 1,024 Wh, 1,800 W continuous (2,700 W surge), 25 lbs and 4,000+ cycles to 80% capacity. It recharges to 80% in 45 minutes on AC with TurboBoost. The page says it works with the B300K expansion battery, which is rare at this price. Beside the DELTA 3 Plus it costs less for the same watt-hours and the same 1,800 W. You give up the longer, clearly stated warranty.
Check price on Amazon →EcoFlow DELTA 3 Plus (1,024 Wh)EcoFlow: 1 kWh with 5-year cover
EcoFlow lists 1,024 Wh, 1,800 W (3,600 W surge), 27.6 lbs, 4,000 cycles to 80% and IP65 splash and dust rating. AC charging takes 56 minutes at 1,500 W input, and the page says expansion reaches up to 5 kWh. It beats the Elite 100 V2 on the stated warranty and on the water and dust rating. It loses on price by about 44% per Wh.
Check price on Amazon →Bluetti Elite 200 V2 (2,073.6 Wh)Best value per Wh
Bluetti's page gives 2,073.6 Wh, 2,600 W continuous (3,900 W in Power Lifting mode), 53.4 lbs, a 5-year warranty and 1.4 hours to a full charge. Solar input reaches 1,000 W. It undercuts the EcoFlow DELTA 3 Max Plus while holding about the same energy. You trade away output (2,600 W vs 3,000 W) and the expansion path.
Check price on Amazon →EcoFlow DELTA 3 Max Plus (2,048 Wh)EcoFlow: Best 2 kWh to expand
EcoFlow lists 2,048 Wh, 3,000 W continuous (6,000 W surge), about 48.8 lbs, a 5-year warranty (3 standard plus 2 on app registration) and 2 to 10 kWh of expandable capacity. AC charging reaches 80% in 64 minutes. It beats the Elite 200 V2 on output, weight by a few pounds and expansion. It loses on dollars per Wh.
Check price on Amazon →Bluetti Apex 300 (2,764.8 Wh)Bluetti: Best for modular home backup
Bluetti lists 2,764.8 Wh, 3,840 W pure sine wave, 120 V and 240 V output, up to 6,000 cycles to 80%, and a 0 ms UPS-style switchover. B300K adds 2,764.8 Wh and B500K adds 5,120 Wh per module. Check the current Amazon price for the cost per Wh.Compare that per-Wh cost with the alternatives on Amazon. It gives up the 4 kWh single-box capacity. Connecting any of this to your home panel needs a licensed electrician.
Check price on Amazon →EcoFlow DELTA Pro 3 (4,096 Wh)EcoFlow: Largest single unit
EcoFlow lists 4,096 Wh, 4,000 W (up to 6,000 W with X-Boost), 4,000 cycles to 80%, 5-year warranty and expansion to 12 kWh per unit and 48 kWh per system. The extra battery is also 4,096 Wh. That makes the second battery a better value than the first box. It beats the Apex 300 on single-box capacity. It loses on price per Wh and on the cycle rating (4,000 vs 6,000).
Check price on Amazon →How we chose
We matched models by usable size, not by marketing line: three pairs at about 1 kWh, about 2 kWh and 2.7 to 4 kWh. For each we read the manufacturer's spec page for capacity, continuous output, weight, cycles, warranty and expansion, then divided price by watt-hours. We skipped anything we could not find on a maker page. Prices came from Bluetti's and EcoFlow's own stores in November 2026, and we describe Amazon prices only as moving around those numbers.
This is a researched comparison. We did not test any of these units, so we cannot tell you about fan noise, app bugs or real-world capacity loss.
Price per Wh across the size classes
Price is where the two brands separate most clearly.
| Model | Price (maker page) | Wh | Price per Wh | Price per kWh |
|---|---|---|---|---|
| Bluetti Elite 100 V2 | $499 | 1,024 | $0.49 | $487 |
| EcoFlow DELTA 3 Plus | $719 | 1,024 | $0.70 | $702 |
| Bluetti Elite 200 V2 | $899 | 2,074 | $0.43 | $434 |
| EcoFlow DELTA 3 Max Plus | $1,149 | 2,048 | $0.56 | $561 |
| Bluetti Apex 300 | $1,499 | 2,765 | $0.54 | $542 |
| EcoFlow DELTA Pro 3 | $2,799 | 4,096 | $0.68 | $683 |
Formula: price per Wh = listed price in dollars divided by rated watt-hours. Prices are the manufacturers' own sale prices when we checked in November 2026; Amazon prices move, so rerun the division with the number you see.
Bluetti is cheaper per Wh at all three sizes. The gap is 31% at 1 kWh, 23% at 2 kWh and 21% at the home-backup tier (Apex 300 vs DELTA Pro 3). If you just need the lowest cost for a day of fridge power, that gap is real money: about $250 between the two 2 kWh units. Sale prices swing by hundreds of dollars, so recompute before you buy.
Portable class: 1 kWh and 2 kWh
Both brands use LiFePO4, quote 4,000-plus cycles at the 1 kWh size, and put 1,800 W on the smaller unit. A fridge draws about 100 to 200 W while running, so 1,024 Wh gives you roughly 5 to 8 hours of fridge use after inverter losses. At 2 kWh you are in the 10 to 16 hour range.
- Choose Bluetti when price per Wh is your top concern, or you want the Elite 100 V2's B300K compatibility.
- Choose EcoFlow when you want the IP65 rating on the DELTA 3 Plus, a stated 3,000 W output on the Max Plus, or a documented 2 to 10 kWh expansion path.
Home-backup class: Apex 300 vs DELTA Pro 3
This is the real decision for anyone planning for multi-day outages. Both give you 120 V and 240 V output and a live app. The Apex 300 has the higher cycle rating (6,000 vs 4,000), the lower price and a 3,840 W output, close to the DELTA Pro 3's 4,000 W. The DELTA Pro 3 has more capacity in one box (4,096 vs 2,764.8 Wh) and a longer published expansion ceiling in the pages we opened (48 kWh).
Whichever you choose, hooking either one to a home panel through a transfer switch or home integration kit is electrician work. Do not backfeed through a dryer outlet. See our fridge guide and sizing guide to match watts before you spend.
Warranty and the fine print
Both brands advertise 5 years, but they get there differently. EcoFlow lists 3 years standard plus 2 extended years when you register in its app. Bluetti's warranty page lists 24 to 72 months depending on the model; the Apex 300 is 60 months and the B300K expansion battery is 48 months. The Elite 100 V2 shows both 2-year and 5-year versions across regional listings. Buy from the brand's official Amazon storefront, and save your order number and registration confirmation.
Both warranties are limited to the country of purchase and apply to the original buyer.
App, expansion and ecosystem
Both brands run a phone app over Wi-Fi and Bluetooth for monitoring charge, output and settings. Bluetti's Apex 300 page highlights disaster alerts that can pre-charge the system, backup status monitoring and over-the-air updates. EcoFlow ties its app registration to the extra 2 years of warranty, so you will install it either way.
Expansion is where the pages differ most. EcoFlow publishes a clean ladder: DELTA 3 Plus up to 5 kWh, DELTA 3 Max Plus 2 to 10 kWh, DELTA Pro 3 up to 12 kWh per unit and 48 kWh per system, with an extra battery available for the Pro 3. Bluetti lists the B300K (2,764.8 Wh) and B500K (5,120 Wh) modules for the Apex 300, and says the Elite 100 V2 pairs with the B300K. Its Elite 200 V2 page does not confirm any expansion. Before you count on growing, check that the exact battery you want is in stock and priced; the EcoFlow Pro 3 extra battery showed as sold out when we looked.
Which one to buy: a quick decision rule
- Fridge, router and phones for 6 to 12 hours, tight budget: Bluetti Elite 100 V2, or the Elite 200 V2 if you want a full day.
- You want a splash-and-dust rating or the longest stated warranty on a small unit: EcoFlow DELTA 3 Plus.
- You may add batteries within a year: EcoFlow DELTA 3 Max Plus or Bluetti Apex 300. Price the expansion battery before you buy the base.
- Multi-day backup, one box, 240 V: EcoFlow DELTA Pro 3 for capacity, Bluetti Apex 300 for price per Wh and cycles.
- Panel connection planned: ask your electrician which brand's transfer switch or integration kit they install, and match the power station to it. Our cost-math guide shows when the numbers work.
Two sanity checks save people from regret. First, add up the watts of everything you want running at the same time and stay under the continuous rating. Second, divide your battery's watt-hours by 1.2 to account for inverter losses, then by your load in watts for hours of runtime.
Who should NOT buy either brand
- You need power for medical equipment. Ask your doctor and your equipment supplier about a plan. A consumer power station is not a medical device.
- You want to run central AC, an electric dryer and an oven at once. That needs an installed whole-home system, and a licensed electrician.
- You expect a no-effort tool. You must keep the unit charged and test it every few months.
- You plan to run it inside a closed garage while charging from a gas generator. Keep gas generators outdoors, 20 feet from the house.
Our #1 pick: Bluetti Elite 200 V2
If you only read one line of this guide: this is the one we would buy.
Check price on Amazon →Frequently asked questions
Is Bluetti or EcoFlow better for home backup?
Neither wins on everything. Bluetti's Apex 300 costs less per Wh and quotes 6,000 cycles. EcoFlow's DELTA Pro 3 holds more in one box (4,096 Wh) and lists expansion up to 48 kWh. Pick on the size of battery you need and the expansion price.
Is Bluetti cheaper than EcoFlow?
In our table, yes. Per Wh, Bluetti came in about 21 to 31% lower in each size class using the manufacturers' listed prices. Sales change that quickly, so compare on the day you buy.
Do Bluetti and EcoFlow both use LiFePO4 batteries?
Yes, the models in this guide all use LiFePO4 (LFP) cells, which is the chemistry we recommend for indoor home use. Always keep a power station on a hard, ventilated surface.
Can I connect a Bluetti or EcoFlow power station to my house panel?
Only through a transfer switch or a manufacturer's home integration kit installed by a licensed electrician, with a permit where your local code requires one. Never plug it into a wall outlet to backfeed the house.
Which has the better warranty, Bluetti or EcoFlow?
Both advertise up to 5 years on the units we compared. EcoFlow splits it into 3 standard plus 2 extended on app registration. Bluetti lists 60 months on the Apex 300 but only 48 months on its expansion batteries.
Price classes are a rough guide; check the current price on Amazon. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.