Quick answer
The EcoFlow Delta 3 Plus holds the exact same 1,024Wh LiFePO4 capacity and 1,800W continuous AC output as the base Delta 3 this site already reviewed — despite the name, it is not a bigger battery. What “Plus” actually buys, per EcoFlow’s own specs: dual 500W solar ports (1,000W total, versus a single 500W port on the base unit) that cut a full solar recharge to about 70 minutes, a higher expansion ceiling of up to 4kWh with EcoFlow’s largest compatible add-on battery, and a 140W USB-C port. It typically sells for $649–$719 (list $799). One catch worth knowing before you buy: the advertised 5-year warranty is only 3 years standard, with the extra 2 years requiring app registration.
This site’s Delta 3 review already found that “3” doesn’t mean more capacity than the Delta 2. The Delta 3 Plus repeats the same trap one tier up the name ladder — “Plus” sounds like a capacity bump, and in EcoFlow’s own lineup, the real capacity jump lives two names further along, in the Delta 3 Max Plus and Delta 3 Ultra Plus.
At a glance
| Spec | EcoFlow Delta 3 Plus | EcoFlow Delta 3 (base) |
|---|---|---|
| Capacity | 1,024Wh LiFePO4 | 1,024Wh LiFePO4 |
| AC output | 1,800W continuous, 2,200W X-Boost, 3,600W surge | 1,800W continuous, 3,600W surge |
| AC recharge (wall) | ~56 min, 0-100% | ~56 min, 0-100% |
| Solar input | Dual 500W ports (1,000W total), ~70 min full charge | Single 500W port |
| USB-C | 140W max | Lower (not separately specified by EcoFlow) |
| Cycle life | ~4,000 cycles to 80% capacity | ~4,000 cycles to 80% capacity |
| Expansion ceiling | Up to 4kWh (add-on battery) | Lower ceiling than Plus |
| Warranty | 5 years (3 standard + 2 via app registration) | 5 years |
| Weight | ~27.6 lb | ~27.6 lb |
| Price | ~$649–719 (list $799) | ~$629 (list $699) |
What we like
- Genuinely faster solar charging. The dual 500W MPPT ports (1,000W combined) cut a full solar recharge to roughly 70 minutes, real headroom over the base Delta 3’s single 500W port for anyone charging off-grid rather than at a wall outlet.
- A real expansion path. EcoFlow rates the Delta 3 Plus to expand up to 4kWh using its largest compatible add-on battery — useful if you expect to outgrow 1,024Wh later without replacing the base unit, the same expandable-first philosophy this site flagged on the EcoFlow Delta 2. An expandable system like this only gets more useful with extra batteries and panels on hand — try Amazon Prime free for 30 days for fast shipping when you decide to add one.
- Same honest recharge math as the base Delta 3. The ~56-minute wall-recharge figure is a genuine 0-100% number, matching the base unit and not padded by an 80%-cutoff asterisk some competitors use.
- Higher USB-C ceiling. 140W is enough to fast-charge a modern laptop directly from the unit’s USB-C port, without needing the AC inverter stage at all.
Where it falls short
- No capacity increase over the base Delta 3 — despite the name. If “Plus” led you to expect more than 1,024Wh, it doesn’t deliver that; both units are identical on capacity and continuous AC output. Buyers who actually need more watt-hours from this lineup want the Delta 3 Max Plus (2,048Wh) or Delta 3 Ultra Plus (3,072Wh), not this unit.
- The 5-year warranty has a registration catch. EcoFlow’s own terms split the coverage into a 3-year standard period plus a 2-year extension that only applies once the unit is registered in the EcoFlow app — the same registration-trap pattern this site has already flagged on Pecron and Jackery units. Skip registration and you’re covered for 3 years, not 5.
- Costs $20–90 more than the base Delta 3 for solar-charging speed and expansion headroom most buyers who charge primarily at a wall outlet won’t use.
Who should buy it
The Delta 3 Plus makes sense for buyers who charge off-grid often enough that the dual 500W solar ports matter, or who want a clear expansion path to 4kWh without switching product lines later. If you mostly recharge from a wall outlet and don’t plan to expand, the base EcoFlow Delta 3 delivers the identical 1,024Wh and 1,800W output for less money. If you already know you need more than 1,024Wh today, skip both and look at the Delta 3 Max Plus (2,048Wh) or the EcoFlow Delta 3 Ultra Plus instead — the Ultra Plus holds 3,072Wh and expands to roughly 11kWh — or step up further to the whole-home EcoFlow Delta Pro. Whichever unit you land on, register it in the EcoFlow app right away to actually collect the full 5-year warranty window.
EcoFlow Delta 3 Plus (1,024Wh)
- Dual 500W solar MPPT ports (1,000W total) — full solar recharge in about 70 minutes.
- Expandable up to 4kWh with EcoFlow's largest compatible add-on battery.
- 5-year warranty requires app registration to unlock the final 2 years.
The bottom line
The EcoFlow Delta 3 Plus is a real but narrow upgrade over the base Delta 3 — faster solar charging, a higher expansion ceiling, and more USB-C power, not a bigger battery despite what the name implies. It’s worth the extra $20–90 only if you’ll actually use the dual solar ports or plan to expand past 1,024Wh; otherwise the base Delta 3 covers the same capacity for less. See our full portable power station rankings for how it stacks up against every class of unit, or our how long power stations actually last guide for what that 4,000-cycle rating means in real years of use.