Capacity
Higher is better | Scale max: 768 Wh | AC70 leads
AC70 768 Wh
RIVER 2 256 Wh
AC70: +512 Wh (+200.0%).
AC70 vs RIVER 2
1,000W
Running power
300W
768 Wh
Battery
256 Wh
22.5 lbs
Weight
7.7 lbs
At a Glance
This comparison targets buyers choosing between a mid-capacity portable station and a compact, lightweight option for basic power needs. The Bluetti AC70 delivers 1000W of running power with 768 Wh of battery capacity, while the EcoFlow RIVER 2 tops out at 300W and 256 Wh.
That gap shows up in device coverage: the AC70 powered 24 of 53 tested devices compared to 17 for the RIVER 2, and every device the RIVER 2 can handle, the AC70 handles too. Solar recharge favors the AC70 as well, accepting up to 500W of panel input for a full charge in roughly 2.7 hours.
The tradeoff is size and portability. At 7.7 lbs, the RIVER 2 weighs about a third of the AC70's 22.5 lbs, and it includes a 30ms UPS function the AC70 lacks.
Overall Winner
AC70
Powers 24 of 53 tested devices vs 17 for RIVER 2
Home backup: AC70 RV / mobile: RIVER 2 Solar: AC70
AC70 wins overall, but the best pick depends on your use case.
Choose AC70 if...
- + You want faster solar recharging
- + You want broader device compatibility
- + You need all-day runtime headroom
Choose RIVER 2 if...
- + Portability matters (8 lbs vs 23)
- + Built-in UPS with 30ms switchover
Spec Snapshot
Absolute values shown. Bars are scaled within this comparison for readability.
Each metric is independent. Bar lengths are not comparable across different compare pages.
Running Power
Higher is better | Scale max: 1,000 W | AC70 leads
AC70 1,000 W
RIVER 2 300 W
AC70: +700 W (+233.3%).
Surge Power
Higher is better | Scale max: 2,000 W | AC70 leads
AC70 2,000 W
RIVER 2 600 W
AC70: +1,400 W (+233.3%).
Weight
Lower is better | Scale best: 7.7 lbs | RIVER 2 leads
AC70 22.5 lbs (10.2 kg)
RIVER 2 7.7 lbs (3.5 kg)
RIVER 2: -14.8 lbs (65.7% lighter).
Battery Life
Higher is better | Scale max: 3,000 cycles | Tie
AC70 3,000 cycles
RIVER 2 3,000 cycles
Delta: Tie (0%).
Where Compatibility Actually Differs
Out of 53 devices tested, 7 show a different result between these two stations.
Both can run: 17 · Differences: 13% (7/53) · Neither can run: 29
Only AC70 can run 7
Electric Wheelchair Charger RIVER 2: Running shortfall
Portable Oxygen Concentrator RIVER 2: Running shortfall
Laser Printer RIVER 2: Running + surge shortfall
Laptop RIVER 2: Running shortfall
Desktop PC (Gaming/Workstation) RIVER 2: Running + surge shortfall
Rice Cooker RIVER 2: Running + surge shortfall
Portable Ice Maker (Countertop) RIVER 2: Running + surge shortfall
Neither can run · 29 devices
These devices draw more continuous watts than either station can deliver.
2-Slice Bread Toaster
Coffee Maker
Digital Air Fryer
Electric Skillet
Electric Stove (Single Burner)
Electric Water Kettle
Instant Pot (6 Qt)
Microwave Oven (1000W)
Toaster Oven
RV Rooftop AC (13,500 BTU)
Sump Pump (1/2 HP)
EV Charger (Level 1, 120V)
Central AC (3-Ton)
Gas Furnace Fan (Blower)
Portable AC (12,000 BTU)
Space Heater (1,500W)
Dehumidifier (70 Pint)
Window AC (8,000 BTU)
Electric Water Heater (50 Gal)
Well Pump (1 HP)
Electric Clothes Dryer
Dishwasher
Washing Machine
Professional Hair Dryer
Circular Saw (Corded)
Corded Drill / Hammer Drill
Electric Chainsaw (14-inch)
Pancake Air Compressor (6-Gallon)
Shop Vac (Wet/Dry, 5-6 HP Peak)
Full Specs Comparison
| Spec | AC70 | RIVER 2 |
|---|---|---|
| Capacity | 768 Wh ✓ | 256 Wh |
| Running Power | 1,000 W ✓ | 300 W |
| Surge Power | 2,000 W ✓ | 600 W |
| Weight | 22.5 lbs (10.2 kg) | 7.7 lbs (3.5 kg) ✓ |
| Energy Density | 75.3 Wh/kg ✓ | 73.1 Wh/kg |
| Portability Tier | portable | ultralight |
| Chemistry | LFP | LFP |
| Cycle Life | 3,000 | 3,000 |
| Expandable | No | No |
| UPS | No | Yes (30 ms) |
| AC Voltage | 120V | 120V |
Solar Charging
Best-case charging profile using compatible solar panels.
AC70
Faster Max solar input 500 W
Connector XT60
Full charge time ~2.7h
Compatible panels 19/20
MPPT: 12-58V
RIVER 2
Max solar input 110 W
Connector XT60
Full charge time ~3.3h
Compatible panels 12/20
MPPT: 11-30V
Charge speed comparison
Longer bar = faster charge (inverted scale)
Device Compatibility
All tested devices grouped by category. Click a category to expand.
AC70RIVER 2
Emergency(2)
1/21/2
1/2
1/2
Entertainment(2)
2/21/2
2/2
1/2
EV & Transportation(2)
1/21/2
1/2
1/2
Heating & Cooling(7)
1/71/7
1/7
1/7
| Device | AC70 | Runtime | RIVER 2 | Runtime |
|---|---|---|---|---|
| Box Fan (20-inch) | Safe | 6.5h | Safe | 2.2h |
| Central AC (3-Ton) | Voltage Fail | N/A | Voltage Fail | N/A |
| Dehumidifier (70 Pint) | Fail | N/A | Fail | N/A |
| Gas Furnace Fan (Blower) | Fail | N/A | Fail | N/A |
| Portable AC (12,000 BTU) | Fail | N/A | Fail | N/A |
| Space Heater (1,500W) | Fail | N/A | Fail | N/A |
| Window AC (8,000 BTU) | Soft Start | 0.8h | Fail | N/A |
Home Infrastructure(3)
1/31/3
1/3
1/3
| Device | AC70 | Runtime | RIVER 2 | Runtime |
|---|---|---|---|---|
| Electric Water Heater (50 Gal) | Voltage Fail | N/A | Voltage Fail | N/A |
| Garage Door Opener (Residential) | Safe | 3h | Safe | 1h |
| Well Pump (1 HP) | Voltage Fail | N/A | Voltage Fail | N/A |
Kitchen Appliances(11)
2/111/11
2/11
1/11
| Device | AC70 | Runtime | RIVER 2 | Runtime |
|---|---|---|---|---|
| 2-Slice Bread Toaster | Fail | N/A | Fail | N/A |
| Coffee Maker | Fail | N/A | Fail | N/A |
| Digital Air Fryer | Fail | N/A | Fail | N/A |
| Electric Skillet | Fail | N/A | Fail | N/A |
| Electric Stove (Single Burner) | Fail | N/A | Fail | N/A |
| Electric Water Kettle | Fail | N/A | Fail | N/A |
| Instant Pot (6 Qt) | Fail | N/A | Fail | N/A |
| Microwave Oven (1000W) | Fail | N/A | Fail | N/A |
| Rice Cooker | Tight | 0.6h | Fail | N/A |
| Slow Cooker | Safe | 1.8h | Tight | 0.6h |
| Toaster Oven | Fail | N/A | Fail | N/A |
Large Appliances(4)
1/41/4
1/4
1/4
| Device | AC70 | Runtime | RIVER 2 | Runtime |
|---|---|---|---|---|
| Dishwasher | Fail | N/A | Fail | N/A |
| Electric Clothes Dryer | Voltage Fail | N/A | Voltage Fail | N/A |
| French Door Refrigerator | Safe | 2.6h | Safe | 0.9h |
| Washing Machine | Fail | N/A | Fail | N/A |
Medical(4)
4/42/4
4/4
2/4
Outdoor & RV(6)
5/64/6
5/6
4/6
Personal Care(2)
1/21/2
1/2
1/2
Power Tools(5)
0/50/5
0/5
0/5
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The Bottom Line
The AC70 is the better fit for anyone who needs to run higher-draw appliances, wants broader device compatibility, or plans to pair with solar panels for faster off-grid charging. The RIVER 2 makes sense for ultralight travel kits or as a bedside backup, where its 7.7 lb weight and built-in UPS switching matter more than raw capacity. Overall, the AC70 wins this matchup with a score of 46.5 to 33, offering meaningfully more power and coverage for buyers willing to carry the extra weight.
AC70 vs RIVER 2 FAQ
Q Which is better for home backup, AC70 or RIVER 2?
AC70 is the stronger overall choice in this matchup based on weighted compatibility across 53 tested devices.
Q Which has longer runtime, AC70 or RIVER 2?
AC70 has higher battery capacity (768 Wh), which generally supports longer runtime on the same load.
Q Which charges faster with solar panels?
AC70 has the faster best-case solar recharge profile in our panel compatibility test set.
Q Which is more portable, AC70 or RIVER 2?
RIVER 2 is lighter at 7.7 lbs vs 22.5 lbs. RIVER 2 is rated ultralight for portability.
Q How many devices can each power station run?
AC70 powers 24 of 53 tested devices, compared to 17 for RIVER 2.
Q Does AC70 or RIVER 2 have UPS mode for power outages?
Only RIVER 2 has UPS (uninterruptible power supply) mode with a 30ms switchover time, which keeps connected devices running during a power outage without interruption.