2 kWh comparison
Three EcoFlow 2 kWh stations, three different tradeoffs
EcoFlow sells three US portable stations around a 2,048 Wh nameplate battery: DELTA 2 Max, DELTA 3 Max and DELTA 3 Max Plus. Similar capacity does not mean interchangeable use. The first two have 2,400 W rated 120 V AC output, while the Plus raises that ceiling to 3,000 W. Their solar inputs, expansion status, port layout and weight also differ. Start with the loads and recharge equipment you will actually use, not a family name.
The published facts side by side
| US specification | DELTA 2 Max | DELTA 3 Max | DELTA 3 Max Plus |
|---|---|---|---|
| Manufacturer model / SKU | EFD350 / EFDELTA2Max-US | EF-DL-H02-3M / EFD3M-G-US | EF-DL3-MP / EFD3MP-US |
| Nameplate battery | 2,048 Wh LFP | 2,048 Wh LFP | 2,048 Wh LFP |
| US AC output | 120 V; 2,400 W rated / 4,800 W surge | 120 V; 2,400 W rated / 4,800 W surge | 120 V; 3,000 W rated / 6,000 W surge |
| X-Boost | up to 3,400 W | up to 3,400 W | up to 3,800 W |
| Maximum solar input | Two inputs, 1,000 W total | One input, 500 W | Two inputs, 1,000 W total |
| Expansion status | Up to two compatible 2,048 Wh packs; documented 6,144 Wh total | Not confirmed in the reviewed US manual | One compatible 2,048 Wh pack is documented; larger promotions need full topology verification |
| 12 V DC | 126 W shared across car socket and DC5521 | 126 W car-style socket | 378 W shared DC section; car socket alone 126 W |
| Weight, approximate net | 23 kg / 50 lb | 20.3 kg / 44.8 lb | 22.1 kg / 48.7 lb |
When the DELTA 2 Max is the better fit
Choose the DELTA 2 Max when the 2,400 W inverter is enough, but you want two separate solar inputs and a confirmed path to add one or two matching expansion batteries. Its two ports each accept up to 500 W within an 11–60 V and 15 A window. Two 2,048 Wh packs take nameplate capacity to 6,144 Wh; the AC rating stays at 2,400 W. Those packs are sold separately and add substantial weight and space. The 50 lb base station itself is not a casual one-hand carry.
It also has six AC outlets, two 100 W USB-C ports, four USB-A ports and 12 V car/DC5521 connectors. The 12 V ports share a 126 W cap, so do not count each connector as an independent full-power supply. Its manual describes EPS transfer within 30 ms and rejects 0 ms switching; it is not a tested UPS guarantee.
When to choose the DELTA 3 Max
The DELTA 3 Max keeps the same 2,048 Wh / 2,400 W core rating in a body listed at about 44.8 lb. Its manual confirms only one 500 W solar input. It has a 100 W USB-C port and two additional USB-C ports that share a lower 30 W ceiling, along with a 126 W car-style 12 V outlet. The reviewed US materials do not confirm a Max-specific expansion battery, so treat that requirement as unmet unless EcoFlow documents the exact unit-and-battery combination. This is the lighter option if its single input, connectors and fixed capacity meet the plan.
When the Max Plus earns its higher output
The DELTA 3 Max Plus is the only one of these three with 3,000 W rated AC output. It can suit a load list where 2,400 W is too low but 3,000 W, 120 V and 2,048 Wh are enough. The manual documents a model-specific extra battery, and the machine has a 1,000 W solar ceiling plus a stronger shared DC section. That does not make every advertised large-system configuration a verified match: use only the documented battery plan and confirm adapters, package contents and wiring for any larger setup.
X-Boost is a separate feature on all three, not a replacement for rated output. EcoFlow warns that voltage-adjusting X-Boost will not suit every load, especially appliances with strict voltage requirements. Size the station around the normal running watts and starting demands. None of these three single stations provides 240 V split-phase output; several 120 V sockets do not add up to 240 V.
Pick by the constraint that would rule you out
If expansion matters, the DELTA 2 Max has the clearest verified 6,144 Wh route; the Max Plus has a documented compatible battery but its larger system claims need closer package checking; the regular Max remains expansion-unknown in the reviewed US manual. If your load needs more than 2,400 W continuously, the Plus is the only one of this trio rated to 3,000 W. If solar collection is the main difference, the DELTA 2 Max and Max Plus both list a 1,000 W ceiling, but the panel circuits must match their manuals; the regular Max stops at 500 W. If weight is the threshold, the DELTA 3 Max is lightest by the listed figures.
None is a fit for essential 240 V equipment or a 4,000 W load. Compare the DELTA 2 Max, DELTA 3 Max, DELTA 3 Max Plus and, for split-phase output, the DELTA Pro 3. Each review separates single-unit output from expansion, promotional bundles and unknown runtime. Nameplate Wh is not load-specific AC energy; real runtime depends on conversion losses and the appliances’ duty cycles.