Both store exactly 768 Wh of LiFePO4. BLUETTI adds more inverter, more solar and an expansion path. EcoFlow keeps it lighter and simpler.
BLUETTI AC70
- Capacity768 Wh
- AC output1000 W
- Weight22.5 lb
- Cycles3,000
EcoFlow RIVER 2 Pro
- Capacity768 Wh
- AC output800 W
- Weight18.2 lb
- Cycles80
Main differences
Full manufacturer wording
| Spec | BLUETTI AC70 | EcoFlow RIVER 2 Pro |
|---|---|---|
| Capacity | 768 Wh | 768 Wh |
| AC output | 1,000 W total AC, pure sine (surge 1,500 W); Power Lifting 2,000 W for resistive loads | 800 W total AC (surge 1600 W); X-Boost up to 1600 W |
| Weight | Approximately 22.5 lb (10.2 kg) | Approximately 18.2 lb (7.8 kg on EU pages) |
| Chemistry | LiFePO4 | LFP |
| Cycle life (mfr.) | 3,000+ cycles to 80% | 80%+ after 3000 cycles |
| Max solar input | 12–58 VDC, 10 A, 500 W max (2.8–3.3 h) | 11–50 V, 13 A, 220 W max |
| Expandable | Yes — B80 (to 1,574 Wh), B230, B300 via Power Bank Mode | No |
| Charge temp. | 32–104°F (0–40°C) | 32–113°F |
| Discharge temp. | −4–104°F (−20–40°C) | 14–113°F |
| Warranty (mfr. copy) | 5 years | 5 years |
Inverter
AC70: 1000 W continuous pure sine, 1500 W surge, and Power Lifting up to 2000 W for resistive loads like kettles. RIVER 2 Pro: 800 W continuous and X-Boost up to 1600 W. BLUETTI wins on every listed watt figure.
Expandable vs sealed
BLUETTI lists AC70 with B80 (to 1574 Wh), B230 and B300 batteries in Power Bank Mode. EcoFlow’s RIVER 2 Pro is not expandable. If 768 Wh might be too little later, the AC70 leaves room.
Recharging and solar
AC70 takes up to 950 W on AC with Turbo charging turned on in the app (BLUETTI quotes 1.3–1.6 h, and 0–80% in 45 min). RIVER 2 Pro takes up to 940 W, 0–100% in 70 min. Solar is the bigger gap: 500 W (12–58 V) versus 220 W (11–50 V).
Weight and cold weather
AC70: about 22.5 lb (10.2 kg), 12.4 × 8.2 × 10.1 in. RIVER 2 Pro: about 18.2 lb. AC70 discharges down to −4°F; RIVER 2 Pro down to 14°F, but it charges up to 113°F versus 104°F. Both list a 5-year warranty.
BLUETTI AC70 — official storeAmazon search
EcoFlow RIVER 2 Pro — official storeAmazon search
Sources
BLUETTI US AC70 product page spec table. EcoFlow US RIVER 2 Pro product page spec block. Checked 29 October 2026.