The Bluetti Elite 100 V2 is the stronger 1kWh unit on most specs: double the solar input (1,000W versus 500W), a bigger 3,600W surge, a faster 10ms UPS, quieter running and a longer-life 4,000-cycle battery. The EcoFlow Delta 2 wins on flexibility and price: it carries 13 ports to the Bluetti’s 9, expands to 3,040Wh, and is usually cheaper. Both are 1,024Wh LiFePO4 units with 5-year UK warranties. Pick the Bluetti for solar and quiet, or the Delta 2 for ports, expansion and value.
EcoFlow Delta 2 vs Bluetti Elite 100 V2: Specifications Compared
| Specification | EcoFlow Delta 2 | Bluetti Elite 100 V2 |
|---|---|---|
| Price | Check price on Amazon UK | Check price on Amazon UK |
| Capacity | 1,024Wh LiFePO4 | 1,024Wh LFP |
| AC output (continuous) | 1,800W Higher | 1,800W Higher |
| Surge | 2,700W | 3,600W Higher |
| Full mains charge | ~50 min | ~45 min Faster |
| Max solar input | 500W | 1,000W Higher |
| UPS switchover | ~30ms | ~10ms Faster |
| AC outlets (UK) | 4 × UK three-pin | 2 × UK three-pin |
| USB-C (max) | 100W | 140W |
| Total ports | 13 More | 9 |
| 12V car charging | 126W | 120W |
| Expandable | Yes, to 3,040Wh | No |
| Weight | 12 kg | 12 kg Lighter |
| App control | Wi-Fi + Bluetooth | Wi-Fi + Bluetooth |
| Warranty (UK) | 5 years UK | 5 years UK |
Who Should Choose Each?
Choose the EcoFlow Delta 2 if:
- You want to spend less. It is usually the cheaper of the two.
- You might expand later. It grows from 1,024Wh to 3,040Wh.
- You run lots of devices at once. It has 13 ports, including four UK sockets.
- You want X-Boost to run a 2,200W-rated appliance off an 1,800W unit.
Best for: camping, home backup, and van life on a budget.
Choose the Bluetti Elite 100 V2 if:
- Solar is central to your setup. Its 1,000W input is double the Delta 2’s.
- You want the faster 10ms UPS and the quieter 30dB running.
- You want to drive a kettle off-grid via Power Lifting to 2,700W.
- You value the longer 4,000-cycle battery and the lighter body.
Best for: solar charging, off-grid, and quiet home backup.
Solar Charging in the UK
Which unit takes more solar, and does it matter here?
The Bluetti Elite 100 V2 accepts up to 1,000W of solar through its MPPT controller, double the 500W ceiling on the EcoFlow Delta 2. That is the single biggest gap between these two units. On a bright UK summer day a decent array fills the Bluetti in roughly 1 to 1.5 hours, while the Delta 2’s 500W cap roughly doubles that time. For a solar-first setup, the Bluetti is the clear pick.
The difference shows most with a multi-panel array. Several panels can max out the Bluetti’s 1,000W input on a clear day, whereas the Delta 2 throttles at 500W and leaves some of that potential on the table. Even in weaker UK light the higher ceiling means the Bluetti captures more of what your panels produce during the short window of good sun.
That said, neither unit needs a huge array to be useful. Two 200W panels in decent summer light will trickle either one back up over a day of camping, enough to keep lights and a fridge going into the evening. If you mainly charge from the mains, the solar gap matters far less. Our UK solar charging guide sets realistic expectations for British weather, and our best solar generators for the UK roundup covers solar-first units in more depth.
The Bluetti wins clearly. At 1,000W versus 500W it is twice the solar charger, and for off-grid buyers that is the headline reason to choose it over the Delta 2.
Power Output and Boost
Which unit powers more demanding appliances?
On paper the two are level: both put out 1,800W continuously. The difference is in their boost modes and surge. The Bluetti’s Power Lifting drives heating appliances up to 2,700W, while the Delta 2’s X-Boost reaches 2,200W. On surge the Bluetti also leads, at 3,600W against the Delta 2’s 2,700W, which helps with fridge compressors and tool start-up.
A UK kettle shows the gap. A typical kettle draws 2,500W to 3,000W, above both units’ continuous output, but the Bluetti’s 2,700W Power Lifting brings a lower-rated kettle or fan heater within reach, while the Delta 2 is capped at 2,200W and will not start a full kettle. For occasional high-draw heating jobs, the Bluetti has the edge.
Both boost modes only suit resistive loads, not equipment with tight voltage needs, so treat them as headroom rather than sustained power. For steady loads under 1,800W the two are evenly matched, and either runs a fridge, laptop, TV, lights and most camping gear without trouble.
A narrow win for the Bluetti. Native output is a tie at 1,800W, but the Bluetti’s higher 2,700W Power Lifting and 3,600W surge give it more real-world headroom than the Delta 2.
Charging Speed
Which charges faster from the mains?
The Bluetti Elite 100 V2 is quicker, reaching 80% in about 45 minutes and a full charge in around 70 minutes. The EcoFlow Delta 2 hits 80% in 50 minutes and a full charge in roughly 80 minutes. The gap is modest but real, and it counts most when you need a complete top-up before a trip or after a power cut.
For day-to-day use, both are quick for the class, far faster than the three to five hours older power stations take from the mains. Both also accept AC and solar at the same time for the fastest possible top-up, so a sunny afternoon plus a mains feed fills either unit in well under an hour.
Fast charging makes the fans work, so a full-speed top-up is audible on both, though the Bluetti stays calmer thanks to its quieter design and Silent mode. If you want a quiet overnight charge, cap the input in either app and accept a slightly longer fill.
The Bluetti wins, at roughly 45 minutes to 80% versus 50, and about 70 minutes to full versus 80. Both are quick, so the gap only matters when every minute counts.
Home Backup and UPS
Which is better for power-cut protection in the UK?
Both offer UPS-style switchover, and the order may surprise you: the Bluetti Elite 100 V2 changes to battery in 10 milliseconds against the EcoFlow Delta 2’s 30ms. Both are quick enough that a router, NAS drive, or desktop won’t notice the mains dropping, but the Bluetti is the faster of the two. This is worth flagging, because the Bluetti is sometimes wrongly described as having no UPS; it actually has the quicker switchover here.
Where the Delta 2 hits back is capacity headroom. It expands to 3,040Wh, so it can cover a longer outage, while the Bluetti is a fixed 1,024Wh. The Delta 2 also has more sockets to spread devices across. So for the quickest changeover the Bluetti wins; for a longer or larger backup the expandable Delta 2 has the edge.
For sizing a real outage, remember 1,024Wh is a modest buffer that keeps a fridge, router and a few devices going for several hours, not days. If you need to cover a multi-hour or whole-home cut, look at an expandable or larger unit. Our home backup buying guide walks through how to size for your own setup.
For switchover speed, the Bluetti wins at 10ms versus 30ms. For backup duration, the expandable Delta 2 wins on capacity headroom. Pick on which matters more.
Ports and Expandability
Which unit is more flexible?
This is the EcoFlow Delta 2’s strongest territory. It carries 13 ports against the Bluetti’s 9, including four UK three-pin sockets to the Bluetti’s two, and it expands from 1,024Wh to 3,040Wh with extra batteries. The Bluetti has a fixed 1,024Wh and cannot grow, though it counters with a faster 140W USB-C port versus the Delta 2’s 100W.
For a busy household or a packed campervan, the port count matters. Four AC sockets plus a wide USB spread means fewer adapters and splitters, and the Delta 2’s 13-port layout is one of the most complete at this capacity. The Bluetti keeps things leaner with nine ports, but its single 140W USB-C is the fastest laptop charger of the two.
Expandability is the bigger story. If there is any chance you will want more runtime later, for longer power cuts or full-time van life, the Delta 2 lets you bolt on capacity without buying a second unit. The Bluetti asks you to size correctly on day one. Not sure how much you need? Try our sizing calculator.
The Delta 2 wins clearly. More ports, twice the AC sockets, and true expandability to 3,040Wh give it a versatility the fixed Bluetti cannot match.
Weight, Noise and Portability
Which is easier to live with day to day?
The Bluetti Elite 100 V2 is the lighter and quieter of the two, at 11.5kg and about 30dB under a 600W load. The EcoFlow Delta 2 is close on weight at 12kg, but its fans climb toward 50dB or more at full mains charge. Both have carry handles and are one-person lifts on level ground.
The half-kilogram weight gap is small, so noise is the real differentiator here. In a caravan, tent or bedroom, the Bluetti’s 30dB running is genuinely less intrusive, and its Silent mode drops it further. The Delta 2 is fine in a garage or at a campsite pitch, but it is more noticeable when charging hard.
Both are compact and app-controlled. If you regularly run the unit where people sleep, the Bluetti’s quiet operation is a small but real quality-of-life win. If noise is not a concern, the two are evenly matched on size and handling.
A narrow win for the Bluetti. It is marginally lighter and clearly quieter, which makes it the better overnight companion in a tent or caravan.
Warranty and Value
Which offers better value for UK buyers?
Both units carry a 5-year UK warranty, so cover is equal, and both use LiFePO4 cells. The Bluetti’s 4,000-cycle rating edges the Delta 2’s 3,000+, pointing to a slightly longer usable life, though both will comfortably outlast a decade of weekend use. On price, the Delta 2 is usually the cheaper of the two.
That makes the value call straightforward. The Delta 2 is the budget pick and the more flexible unit, with more ports and expansion. The Bluetti asks a little more and earns it with double the solar, the faster UPS, quieter running and the longer-life battery. Check the current price on Amazon UK for both, as it shifts with bundles and sales.
So which is better value depends on what you are buying it for. For the cheapest capable 1kWh all-rounder, the Delta 2. For a premium 1kWh built around solar and quiet off-grid use, the Bluetti. For where these two sit among everything else, see our best portable power stations guide.
Warranty is a tie. The Delta 2 wins on price, ports and expansion; the Bluetti wins on solar, UPS, quiet and battery life. Value depends on your use case.
Need More Capacity? Consider the EcoFlow Delta 2 Max
Both units here are 1kWh, which suits camping, short power cuts and day trips. If you need to run a fridge for a full day, power heavier appliances, or back up essential home circuits through a multi-day outage, the step-up option is the EcoFlow Delta 2 Max. It doubles the capacity to 2,048Wh, lifts output to 2,400W with X-Boost to 3,100W (enough for a standard UK kettle), adds dual 1,000W solar input across two MPPT ports, and expands to 6,144Wh with extra batteries.
The trade-off is size and weight. At 23kg the Delta 2 Max is a two-person lift, better treated as a stay-in-one-place unit for a home, van or motorhome than something you carry to a pitch. If 1kWh is enough for your needs, the Delta 2 or the Bluetti are the more practical, more portable choices. If you want room to grow, read our full EcoFlow Delta 2 Max review or check the best power stations for campervans for larger options.
Advantages at a Glance
EcoFlow Delta 2 Advantages
- Usually the cheaper of the two, the value pick
- 13 ports, including four UK sockets
- Expandable from 1,024Wh to 3,040Wh
- X-Boost runs 2,200W-rated appliances
- Fast home-backup recharge and a proven track record
- 5-year UK warranty
Bluetti Elite 100 V2 Advantages
- 1,000W solar input, double the Delta 2
- Faster 10ms UPS and quieter 30dB running
- 140W USB-C and a longer 4,000-cycle battery
- 3,600W surge and Power Lifting to 2,700W
- Faster 10ms UPS and quieter 30dB running
- 1,000W solar input, double the Delta 2
Overall Verdict
Which should most UK buyers choose in 2026?
For raw capability the Bluetti Elite 100 V2 is the stronger 1kWh unit: double the solar, a faster UPS, a bigger surge, quieter running and a longer-life battery. For flexibility and price the EcoFlow Delta 2 is the smarter buy: more ports, twice the AC sockets, expansion to 3,040Wh, and usually a lower price. Both carry a 5-year UK warranty, so the choice comes down to how you will use it.
When the Bluetti Elite 100 V2 is the better buy
Choose the Bluetti if solar is central to your plans, since 1,000W against 500W is a wide, daily gap for off-grid charging. It is also the pick if you want the fastest 10ms UPS, the quietest running for overnight use, or the bigger 3,600W surge and Power Lifting for the occasional kettle. For solar-first campers, caravan owners and quiet home backup, it is the stronger unit.
When the EcoFlow Delta 2 is the better buy
Choose the Delta 2 if budget matters, if you want the option to expand to 3,040Wh later, or if you need the most ports and AC sockets for running many devices at once. At a lower price with a proven track record, it remains a very easy recommendation for most cost-conscious UK buyers.
Solar-first, quiet, fast-UPS buyers should take the Bluetti Elite 100 V2. Value-first and expandability-minded buyers should take the EcoFlow Delta 2. Need 2kWh or more? Step up to the EcoFlow Delta 2 Max. For the wider market, see our best portable power stations guide.
Frequently Asked Questions
The Bluetti Elite 100 V2 takes double the solar, at 1,000W against the EcoFlow Delta 2’s 500W. On a bright UK summer day it refills in roughly 1 to 1.5 hours, against three to four hours for the Delta 2. If you charge mainly from panels, the Bluetti is the clear pick.
The Bluetti Elite 100 V2 switches over in 10ms, faster than the EcoFlow Delta 2’s 30ms. Both are quick enough to keep a router or computer running through a power cut without a reset. Despite a common myth, the Bluetti is not the unit without a UPS here; it actually has the quicker changeover.
The Bluetti Elite 100 V2 has the better chance. Its Power Lifting mode drives heating appliances up to 2,700W, so a lower-rated kettle or fan heater is within reach. The EcoFlow Delta 2 is capped at 2,200W via X-Boost, so it handles a toaster but struggles with a full kettle. Neither runs a 3,000W kettle.
Yes. The Bluetti runs at around 30dB under a 600W load, about as loud as a quiet library, with a Silent mode to drop it further. The EcoFlow Delta 2 is quiet at light loads but its fans climb toward 50dB at full mains charge. For overnight use in a tent or bedroom, the Bluetti is the calmer choice.
The EcoFlow Delta 2 wins on both. It has 13 ports including four UK sockets, against the Bluetti’s 9 ports and two UK sockets, and it expands from 1,024Wh to 3,040Wh with extra batteries. The Bluetti Elite 100 V2 has a fixed 1,024Wh and cannot be expanded. For more outputs or future capacity, choose the Delta 2.
The Bluetti Elite 100 V2 is quicker, reaching 80% in about 45 minutes and full in around 70. The EcoFlow Delta 2 hits 80% in 50 minutes and full in roughly 80. Both are fast for the class, and both accept AC and solar at the same time for the quickest possible top-up.
Only if you need more than 1kWh. The EcoFlow Delta 2 Max offers 2,048Wh, 2,400W output, dual 1,000W solar and expansion to 6,144Wh, which suits whole-day fridge running or multi-day home backup. The trade-off is a heavier 23kg body, so for camping or portable use the 1kWh Delta 2 or Bluetti are the more practical choices.
For solar-led off-grid touring, the Bluetti Elite 100 V2 wins on its 1,000W solar input, quiet running and lighter weight. For a setup where you want more sockets, expandable capacity and a lower price, the EcoFlow Delta 2 fits better. Both are a fixed 1,024Wh unless you expand the Delta 2, so size for your real daily use.
