BLUETTI AC180 vs EcoFlow DELTA 3 Plus: backup power comparison
The BLUETTI AC180 provides 1,152 Wh of capacity, 1,800 W continuous output, and 2,700 W surge capacity. The EcoFlow DELTA 3 Plus provides 1,024 Wh, the same 1,800 W continuous output, and a higher 3,600 W surge rating.
The DELTA 3 Plus is lighter at 12.5 kg versus 16 kg, accepts up to 1,000 W of solar input versus 500 W, and supports up to 5,000 Wh of expansion; the AC180 has no listed expansion capacity. Both use LiFePO4 chemistry and have five-year warranties. Prices and price-per-Wh values are unavailable in the supplied evidence.
- Choose the AC180 for: its higher listed capacity, pass-through support, and 1,440 W AC charging input.
- Choose the DELTA 3 Plus for: lower weight, higher surge capacity, faster listed AC charging at 1,500 W, greater solar input, and expansion support.
- UPS consideration: the DELTA 3 Plus is listed with UPS functionality and a 10 ms transfer time; the AC180 is listed without UPS support. Suitability for specific loads cannot be determined without those load details.
This comparison uses current Backup Power IQ specification and offer data. It is designed to show measurable tradeoffs rather than declare a universal winner.
Specification comparison
| Metric | BLUETTI AC180 | EcoFlow DELTA 3 Plus |
|---|---|---|
| Capacity (Wh) | 1,152 | 1,024 |
| Continuous AC (W) | 1,800 | 1,800 |
| Surge (W) | 2,700 | 3,600 |
| Solar input (W) | 500 | 1,000 |
| Weight (kg) | 16.0 | 12.5 |
| Cycle life | 3,500 | 4,000 |
| Max expansion (Wh) | 0 | 5,000 |
| Warranty (years) | 5.0 | 5.0 |
Price and value context
Those figures are not enough by themselves: inverter output, motor surge, solar acceptance, weight and expansion support can matter more than raw $/Wh for a particular outage plan.