Main trade-off
BLUETTI AC2P
The two AC outlets share a 300W total limit.
Head-to-head
BLUETTI AC2P vs EcoFlow RIVER 3: AC2P accepts more solar, both remain 300W appliance stations
The short answer
Choose AC2P if a compatible solar setup above 110W is central to your trip. Choose standard RIVER 3 if you want slightly more nominal battery capacity and its documented 20ms backup transfer. Both are around 8 lb with 300W AC output and 100W USB-C. The useful solar difference does not make AC2P suitable for larger AC appliances.
Before you choose
The reasoning and the trade-offs
The extra RIVER 3 capacity is about 6.3%
Its 245Wh battery holds 14.6Wh more than AC2P’s 230.4Wh.
What this is based on
(245 − 230.4) ÷ 230.4 × 100 = 6.3%. This is nominal stored energy, not a measured runtime margin.
Main trade-off
EcoFlow RIVER 3
The base model is 300W AC, not the 550W combined-port or 600W X-Boost headline.
BLUETTI AC2P
- Choose it for
- You want to accept up to 200W from a solar setup that fits its low-voltage input.
- Your plan centers on small devices and daytime solar replenishment.
- Main trade-off
- The two AC outlets share a 300W total limit.
EcoFlow RIVER 3
- Choose it for
- You prefer a little more base capacity in a similarly light station.
- You want the standard model’s documented 20ms transfer behavior for compatible noncritical equipment.
- Main trade-off
- The base model is 300W AC, not the 550W combined-port or 600W X-Boost headline.
About this comparison
Compare BLUETTI AC2P and standard EcoFlow RIVER 3 by solar input, voltage limits, small-load reserve and USB-C charging.
Both suit small loads, but AC2P accepts more solar power within a slightly lower voltage ceiling.
Winner by situation
Start with what you need it to do
My compatible panel setup can supply more than 110W
AC2P can accept up to 200W within its electrical limits.
- BLUETTI AC2P
- Better fit
- EcoFlow RIVER 3
- Caution
My panel has 29V cold-corrected open-circuit voltage
It exceeds AC2P’s 28V ceiling. RIVER 3 still needs current and connector checks.
- BLUETTI AC2P
- Not suitable
- EcoFlow RIVER 3
- Depends
My USB-C laptop accepts up to 100W
Both offer a 100W port with a compatible cable.
- BLUETTI AC2P
- Similar
- EcoFlow RIVER 3
- Similar
My AC appliance draws a steady 400W
Both have a 300W continuous rating.
- BLUETTI AC2P
- Not suitable
- EcoFlow RIVER 3
- Not suitable
What matters in practice
The differences that matter
The extra RIVER 3 capacity is about 6.3%
Its 245Wh battery holds 14.6Wh more than AC2P’s 230.4Wh.
How we reached this conclusion
(245 − 230.4) ÷ 230.4 × 100 = 6.3%. This is nominal stored energy, not a measured runtime margin.
AC2P has a shorter ideal refill window for a 100Wh deficit
At their maximum solar inputs, the loss-free lower bounds are 30 minutes for AC2P and about 55 minutes for RIVER 3.
How we reached this conclusion
100 ÷ 200 × 60 = 30 minutes and 100 ÷ 110 × 60 = 54.5 minutes. Real charging takes longer with panel conditions, losses and tapering.
Higher accepted watts do not mean a higher allowed panel voltage
An array with 29V cold-corrected open-circuit voltage exceeds AC2P’s 28V ceiling even though AC2P has the larger solar wattage limit.
How we reached this conclusion
29V > 28V. RIVER 3’s 30V ceiling clears only this voltage screen, with operating current, connector and polarity still to verify.
Choice A
BLUETTI, AC2P
AC2P
A very small AC battery that can accept a useful amount of solar power. It suits a laptop-and-lights trip better than heavy appliances, and the regulated car socket covers compatible DC coolers.
- Best matched use
- Light packing with small devices and a compatible portable solar panel.
Checked facts
- 230.4Wh LiFePO4 battery and 300W total US AC output.
- About 7.9 lb.
- 100W USB-C and a regulated 12V 10A socket.
- 200W solar input, 12V to 28V and 8.2A maximum.
- Manufacturer lists 45 minutes to 80% using AC charging.
Choice B
EcoFlow, EFR705
RIVER 3
A flat, light battery for small electronics and short trips. The 100W USB-C port makes it more useful for a laptop than the older RIVER 2, while the AC sockets remain a modest 300W supply.
- Best matched use
- Laptop charging, camp lighting and a little plug-in power in a small bag.
Checked facts
- 245Wh battery and 300W combined US AC output.
- About 7.8 lb and 10 by 8.3 by 4.4 inches.
- 100W USB-C and a 12.6V 10A car socket.
- 110W solar input.
- Standard model lists transfer under 20ms and about one hour to full on AC.
Meaningful differences
What changes the fit
| What changes | BLUETTI AC2P | EcoFlow RIVER 3 | Why it matters |
|---|---|---|---|
| Battery capacity | 230.4Wh | 245Wh | RIVER 3 stores an extra 14.6Wh of nominal energy. |
| Continuous AC output | 300W | 300W | Neither is intended for a steady load above 300W. |
| Maximum solar input | 200W | 110W | AC2P can accept more from a compatible larger panel setup. |
| Solar input voltage range | 12V to 28V | 11V to 30V | AC2P’s larger wattage ceiling does not allow a higher-voltage panel string. |
| Fastest USB-C output | 100W | 100W | The USB-C power ceiling is equal. |
| Listed weight | About 7.9 lb | About 7.8 lb | Weight is too close to be a major deciding factor. |
What you give up
Every choice has a cost
If you choose BLUETTI AC2P
- The 28V solar ceiling rules out many larger panels and series strings.
If you choose EcoFlow RIVER 3
- The 245Wh battery is smaller than RIVER 2 and cannot be expanded.
What matters in practice
How to make the call
Choose from the panel you will actually bring and the small devices you want to run.
AC2P’s solar advantage needs the right panel
A 200W solar input is useful only when the array stays within the AC2P voltage and current limits. Its 28V ceiling is lower than RIVER 3’s 30V ceiling. Do not connect panels in series just to chase the wattage figure. Check the panel’s cold-weather open-circuit voltage, operating current, connector and polarity first.
The small battery gap should not dominate the decision
RIVER 3 adds only 14.6Wh of nominal capacity. That is a modest change beside the effects of inverter overhead, temperature and the way a device draws power. For a tablet or laptop that supports direct USB-C charging, both offer a 100W port. A good match to your charging method matters more than a tiny capacity difference.
These remain small-load stations
Both have a 300W continuous AC rating. A 400W appliance is above that limit regardless of battery size or the advertised special boost mode. For a day bag with electronics and lights, the class makes sense. For cooking appliances, longer overnight reserve or a large compressor, choose a larger station after checking the real demand.
What this comparison cannot tell you
- Solar times are theoretical lower bounds rather than manufacturer recharge promises.
- The comparison does not establish UPS compatibility for AC2P or suitability for critical equipment.
What the facts say
What the comparison shows
Useful conclusions from the current portable power stations comparison, followed by the checked facts used to reach them.
Compared set
Only 7 of 50 models checked match every need here: “I need to carry it with one hand”, “I want power for campsites and weekends away”, and “I charge modern laptops directly”.
7 matching models from 50 checkedSee the checked facts and calculation notes
Match countThe count uses the current product-to-need assignments for “I need to carry it with one hand”, “I want power for campsites and weekends away”, and “I charge modern laptops directly”. A need with no documented match does not count.
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| BLUETTI AC2P |
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| EcoFlow RIVER 3 |
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Ready to choose?
Check the price. Read the owner reviews.
Open either model on Amazon to check the current price, customer reviews and delivery options.
BLUETTI AC2P
You want to accept up to 200W from a solar setup that fits its low-voltage input.
See price & reviews on AmazonEcoFlow RIVER 3
You prefer a little more base capacity in a similarly light station.
See price & reviews on AmazonLinks open in a new tab.