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When the power cuts out during dinner and the fridge, the phones and the lamps all go dark at once, bluetti ac300 vs ecoflow delta 2 max is the comparison that decides what kind of backup fits the house. The two examples here are not twins: one is an expansion battery pack that adds capacity to a BLUETTI station, and the other is an EcoFlow station bundle with solar panels in the box.
The short answer: the EcoFlow example is the complete station, with a 2048Wh capacity, a 3400W X-Boost output and a 5-year manufacturer warranty, while the BLUETTI example is a 2764.8Wh expansion pack that only makes sense beside a compatible BLUETTI station. Capacity alone does not settle it, because the two figures describe different items, and the BLUETTI pack states no output figure, charge time or warranty term of its own.
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Bluetti AC300 vs EcoFlow Delta 2 Max: side by side
| Bluetti AC300 vs EcoFlow Delta 2 Max | EcoFlow Delta 3 Max Bundle | BLUETTI B300K Battery Pack | Takeaway |
|---|---|---|---|
| Capacity stated | 2048Wh | 2764.8Wh | Different items: station capacity against pack capacity |
| Output stated | 3400W X-Boost | Not stated | Only the EcoFlow example states an output figure |
| Charging stated | 0-80% in 1.13 hours | Not stated | Only the EcoFlow example states a charge time |
| Solar panels included | 2x220W panels | Not stated | Only the EcoFlow bundle lists panels |
| Transfer time stated | Less than 10ms | Not stated | Only the EcoFlow example states a transfer time |
| Cycle life stated | Not stated | 4,000+ cycles to 80% capacity | Only the BLUETTI example states cycles |
| Weight stated | Not stated | 65.04 pounds | Only the BLUETTI example states a weight |
| Warranty stated | 5-year manufacturer | Not stated | Only the EcoFlow example states a warranty |
Specifications are manufacturer rated as listed, collected 30 October 2026.
Capacity and output
The EcoFlow example states a 2048Wh LiFePO4 station with a 3400W X-Boost output, and the maker claims it powers 99% of appliances. The BLUETTI example states a 2764.8Wh LiFePO4 pack, a larger capacity figure, but it is pack capacity for a host station, not station capacity, and the pack listing states no output watt figure at all. So the output comparison has only one side: the EcoFlow bundle states what it can run, while the BLUETTI pack leaves output unstated. The BLUETTI pack does add a built-in USB charging port, so it can double as a large power bank beside a compatible station.
Charging and solar
Charging is the EcoFlow example’s clearest stated strength: 0-80% charging in 1.13 hours with X-Stream technology, plus 2x220W bifacial solar panels in the bundle for solar charging. The BLUETTI pack listing states no charge time and no solar input figure, so no charging comparison is possible from these two listings. The EcoFlow example also states a transfer time of less than 10ms for home backup use, a figure the BLUETTI pack listing does not address, since a pack has no transfer role of its own.
What the listings leave unclear
Two naming gaps matter. The EcoFlow example is titled as a DELTA 3 Max bundle, not a Delta 2 Max listing, so read it as the EcoFlow Max side of this comparison rather than a Delta 2 Max unit. The BLUETTI example is a B300K expansion battery pack, not an AC300 station, so its 2764.8Wh capacity and 65.04 pound weight describe the pack alone. The BLUETTI claim of boosting lifespan by 15% names no baseline, and the EcoFlow claim of 10 years of daily use comes with no cycle figure, while the BLUETTI pack states 4,000+ cycles to 80% capacity. Those lifespan measures are not comparable across the two listings. Warranty is one-sided too: the EcoFlow example states a 5-year manufacturer warranty, and the BLUETTI pack states no warranty term.
Two examples
EcoFlow Delta 3 Max Bundle
A 2048Wh portable power station bundle with 2x220W solar panels, a 3400W X-Boost output and a 5-year manufacturer warranty.
Pros
- 2048Wh capacity with 2x220W bifacial solar panels in the bundle
- 3400W X-Boost output stated for high-demand appliances
- 0-80% charging in 1.13 hours stated with X-Stream technology
- 5-year manufacturer warranty stated
Cons
- Listing titles a DELTA 3 Max, not a Delta 2 Max
- No weight figure is stated
- No cycle life figure is stated
- App control requires the EcoFlow app
Detailed Review
The listing states a 2048Wh LiFePO4 station with a 3400W X-Boost output, 2x220W bifacial solar panels, 0-80% charging in 1.13 hours, a transfer time of less than 10ms and a 5-year manufacturer warranty. The title names a DELTA 3 Max, so this example is a Delta 3 Max bundle, not a Delta 2 Max listing, and the 10-year daily use claim has no cycle figure behind it.
Who it's for: buyers who want a complete station with panels, fast charging and a stated warranty. Who should skip it: buyers shopping strictly for a Delta 2 Max listing, or buyers who need a stated weight or cycle figure.
Its Solar Score of 9.7/10 comes from performance 30/35, build 21/25, value 21/25, safety 7/10 and warranty 4/5: 83 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Capacity | 2048Wh |
|---|---|
| Output | 3400W X-Boost |
| Charging | 0-80% in 1.13 hours |
| Solar | 2x220W bifacial panels |
Figures as published on the retailer listing, collected 30 October 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. LiFePO4 battery with less than 10ms transfer time stated, so safety scores 7 of 10. 5-year manufacturer warranty stated. It does not say everything a buyer needs, such as who pays return shipping, so warranty scores 4 of 5. See How We Pick.
Power station limits. Stay within the stated continuous output and solar input limits, keep the unit ventilated and dry, charge within the stated temperature range, and never connect it to home wiring except through equipment a licensed electrician installs.
This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.
BLUETTI B300K Battery Pack
A 2764.8Wh LiFePO4 expansion battery pack for Apex 300, AC300 and AC200L stations, with a USB charging port.
Pros
- 2764.8Wh of extra capacity for a compatible BLUETTI station
- 4,000+ cycles to 80% capacity stated
- Links to Apex 300, AC300 and AC200L stations
- Built-in USB charging port for use as a power bank
Cons
- Expansion pack only, not a standalone AC300 station
- No output watt figure is stated
- No charge time is stated
- No warranty term is stated
Detailed Review
The listing states a 2764.8Wh LiFePO4 expansion battery pack at 65.04 pounds, with 4,000+ cycles to 80% capacity, a P090A long cable and a CA90 extension cable, and compatibility with Apex 300, AC300 and AC200L stations. It is a pack, not an AC300 station, so its capacity and weight describe the pack alone, and the 15% lifespan boost claim names no baseline.
Who it's for: BLUETTI owners who want more capacity on an Apex 300, AC300 or AC200L station. Who should skip it: buyers who want a complete station, a stated output figure or a stated warranty.
Its Solar Score of 9.4/10 comes from performance 28/35, build 20/25, value 20/25, safety 0/10 and warranty 0/5: 68 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Capacity | 2764.8Wh |
|---|---|
| Cycles | 4,000+ cycles to 80% capacity |
| Weight | 65.04 pounds |
| Size | 20.67 x 12.87 x 8.23 inches |
Figures as published on the retailer listing, collected 30 October 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. No UL, FCC or battery management statement is stated, so safety scores zero. No warranty term, so warranty scores zero. See How We Pick.
Power station limits. Stay within the stated continuous output and solar input limits, keep the unit ventilated and dry, charge within the stated temperature range, and never connect it to home wiring except through equipment a licensed electrician installs.
This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.
As an Amazon Associate I earn from qualifying purchases.
How we scored them
The Solar Score weighs performance, build, value, safety and warranty. For power stations, safety means a stated battery management system, protection features or certifications the listing names. The EcoFlow example states a LiFePO4 battery with a transfer time of less than 10ms, while the BLUETTI pack states no safety certification or protection feature, so its safety score is zero. One of the two examples states a warranty. How we pick explains the weights.
| Product | Solar Score | Perf. /35 | Build /25 | Value /25 | Safety /10 | Warranty /5 |
|---|---|---|---|---|---|---|
| EcoFlow Delta 3 Max Bundle | 9.7 | 30 | 21 | 21 | 7 | 4 |
| BLUETTI B300K Battery Pack | 9.4 | 28 | 20 | 20 | 0 | 0 |
Scores run from 9.2 to 9.8: each product’s point total is placed on that range, so more points always means a higher score.
How to choose the best bluetti ac300 vs ecoflow delta 2 max
Start from what is missing in the house: a complete station, or more capacity for a station already owned. Buyers who want a complete station with panels and a stated warranty should look at the EcoFlow example, while BLUETTI owners who want more capacity should look at the B300K pack, after checking that their station is one of the listed compatible models: Apex 300, AC300 or AC200L. Match the stated capacity against the loads planned, and check the panel watts in the bundle against the station’s stated solar input before adding more panels.
| If you need | Look at |
|---|---|
| A complete station with panels | EcoFlow Delta 3 Max Bundle, 2048Wh with 2x220W panels |
| More capacity for a BLUETTI station | BLUETTI B300K Battery Pack, 2764.8Wh expansion pack |
| A stated warranty term | EcoFlow Delta 3 Max Bundle, 5-year manufacturer warranty |
Sizing Notes
- Match the stated capacity, 2048Wh for the EcoFlow station and 2764.8Wh for the BLUETTI pack, against the loads planned, without converting watt-hours to other units.
- Match the 2x220W panels in the EcoFlow bundle against the station’s stated solar input before adding panels.
- Match the BLUETTI pack to a listed compatible station only: Apex 300, AC300 or AC200L.
- Match the cables in the BLUETTI box, the P090A long cable and the CA90 extension cable, to the expansion port on the host station.
Frequently Asked Questions
Is the BLUETTI example a complete power station?
No. The B300K is an expansion battery pack with 2764.8Wh of capacity that links to Apex 300, AC300 and AC200L stations, and it states no output watt figure of its own.
Is the EcoFlow example a Delta 2 Max?
No. The listing titles it as a DELTA 3 Max bundle with 2x220W solar panels, a 2048Wh capacity and a 3400W X-Boost output, so read it as the EcoFlow Max side of this comparison.
Which example states a warranty?
Only the EcoFlow example, with a 5-year manufacturer warranty. The BLUETTI pack listing states no warranty term.
Can the two capacities be compared directly?
Not directly. The 2764.8Wh figure is pack capacity for a BLUETTI host station, while the 2048Wh figure is the EcoFlow station’s own capacity, and only the EcoFlow example states an output figure.
Related guides
See every Portable Power Stations guide and all Power Stations and Generators guides.
More picks: portable power station for home backup, portable power station for camping, solar panel for EcoFlow Delta 3, solar panel for BLUETTI.
