The catch
BLUETTI AC2P
A 300W total limit is shared by the two AC outlets.
Side by side
BLUETTI AC2P vs EcoFlow RIVER 3: Both remain 300W appliance stations, and AC2P accepts more solar
Quick verdict
If a compatible solar setup above 110W is central to your trip, the AC2P is the one. The standard RIVER 3 is for slightly more nominal battery capacity and its documented 20ms backup transfer. Each is around 8 lb, with 300W AC output and 100W USB-C. The useful solar difference doesn’t make the AC2P suitable for larger AC appliances.
Before you buy
Why, and what it costs you
RIVER 3 has about 6.3% extra capacity
Its 245Wh battery is 14.6Wh larger than AC2P’s 230.4Wh.
Where this comes from
(245 − 230.4) ÷ 230.4 × 100 = 6.3%. It refers to nominal stored energy and not a measured runtime margin.
The catch
EcoFlow RIVER 3
Don’t confuse the base model’s 300W AC with the 550W combined-port or 600W X-Boost headline.
BLUETTI AC2P
- Why pick it
- You’d like to take in up to 200W from a solar setup that fits its low-voltage input.
- Small devices and daytime solar top-ups are the core of your plan.
- The catch
- A 300W total limit is shared by the two AC outlets.
EcoFlow RIVER 3
- Why pick it
- A bit more base capacity at a similar weight appeals to you.
- For compatible noncritical equipment, you want the standard model’s documented 20ms transfer behavior.
- The catch
- Don’t confuse the base model’s 300W AC with the 550W combined-port or 600W X-Boost headline.
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What this page compares
BLUETTI AC2P and standard EcoFlow RIVER 3 compared on solar input, voltage limits, small-load reserve and USB-C charging.
AC2P accepts more solar power within a slightly lower voltage ceiling, and both suit small loads.
Which one fits
Pick the situations that sound like you
My compatible panel setup is able to supply over 110W
Within its electrical limits, AC2P can take up to 200W.
- BLUETTI AC2P
- Better fit
- EcoFlow RIVER 3
- Caution
My panel’s cold-corrected open-circuit voltage is 29V
That is over AC2P’s 28V ceiling. RIVER 3 still needs current and connector checks.
- BLUETTI AC2P
- Not suitable
- EcoFlow RIVER 3
- Depends
My USB-C laptop takes up to 100W
A 100W port is available on both, given a compatible cable.
- BLUETTI AC2P
- Similar
- EcoFlow RIVER 3
- Similar
A steady 400W is what my AC appliance draws
Each is rated for 300W continuous.
- BLUETTI AC2P
- Not suitable
- EcoFlow RIVER 3
- Not suitable
In practice
Differences you will notice
RIVER 3 has about 6.3% extra capacity
Its 245Wh battery is 14.6Wh larger than AC2P’s 230.4Wh.
How we worked this out
(245 − 230.4) ÷ 230.4 × 100 = 6.3%. It refers to nominal stored energy and not a measured runtime margin.
For a 100Wh deficit, AC2P has the shorter ideal refill window
The loss-free lower bounds at maximum solar input are 30 minutes for AC2P and about 55 minutes for RIVER 3.
How we worked this out
100 ÷ 200 × 60 = 30 minutes and 100 ÷ 110 × 60 = 54.5 minutes. Panel conditions, losses and tapering make real charging take longer.
More accepted watts don’t translate into a higher allowed panel voltage
AC2P has the larger solar wattage limit, yet an array with 29V cold-corrected open-circuit voltage still goes over AC2P’s 28V ceiling.
How we worked this out
29V > 28V. RIVER 3’s 30V ceiling passes this voltage screen and nothing more, so operating current, connector and polarity remain to be verified.
Option A
BLUETTI, AC2P
AC2P
A tiny AC battery that takes in a useful amount of solar power. It’s better matched to a laptop-and-lights trip than to heavy appliances, and its regulated car socket can power compatible DC coolers.
- Best for
- Small devices and a compatible portable solar panel for people who pack light.
Facts we checked
- 300W total US AC output from a 230.4Wh LiFePO4 battery.
- About 7.9 lb.
- A regulated 12V 10A socket and 100W USB-C.
- Solar input of 200W, from 12V to 28V and 8.2A maximum.
- AC charging to 80% takes 45 minutes, per the manufacturer.
Option B
EcoFlow, EFR705
RIVER 3
A flat, light battery for small electronics and short trips. Its 100W USB-C port is more useful with a laptop than the older RIVER 2’s, but the AC sockets still supply only a modest 300W.
- Best for
- Charging a laptop, lighting a camp and getting a bit of plug-in power from a small bag.
Facts we checked
- 300W combined US AC output from a 245Wh battery.
- Measuring 10 by 8.3 by 4.4 inches, at about 7.8 lb.
- A 12.6V 10A car socket and 100W USB-C.
- Solar input of 110W.
- The standard model lists transfer under 20ms and about one hour to reach full on AC.
Spec by spec
Where they really differ
| Spec | BLUETTI AC2P | EcoFlow RIVER 3 | In practice |
|---|---|---|---|
| Battery capacity | 230.4Wh | 245Wh | An extra 14.6Wh of nominal energy is stored by RIVER 3. |
| Continuous AC output | 300W | 300W | A steady load above 300W isn’t what either is intended for. |
| Maximum solar input | 200W | 110W | From a larger compatible panel setup, AC2P can take more. |
| Solar input voltage range | 12V to 28V | 11V to 30V | Having the larger wattage ceiling doesn’t let AC2P take a higher-voltage panel string. |
| Fastest USB-C output | 100W | 100W | USB-C power ceilings match. |
| Listed weight | About 7.9 lb | About 7.8 lb | Weights are too similar to be a major deciding factor. |
Trade-offs
What each pick costs you
With BLUETTI AC2P
- Many larger panels and series strings are ruled out by the 28V solar ceiling.
With EcoFlow RIVER 3
- Its 245Wh battery is smaller than the RIVER 2’s, and it can’t be expanded.
Decision guide
How to decide
Let the panel you will really bring, and the small devices you want to run, decide it.
The AC2P’s solar edge depends on the right panel
A 200W solar input only helps when the array stays within the AC2P’s voltage and current limits, and its 28V ceiling is lower than the RIVER 3’s 30V ceiling. Don’t wire panels in series just to chase the wattage figure. First check the panel’s cold-weather open-circuit voltage, operating current, connector and polarity.
A small battery gap shouldn’t drive the decision
The RIVER 3 offers only 14.6Wh more nominal capacity, a modest change next to the effects of inverter overhead, temperature and the way a device draws power. For a tablet or laptop that supports direct USB-C charging, each has a 100W port. Fitting your charging method matters more than a tiny capacity difference.
They are still small-load stations
The continuous AC rating is 300W on each. A 400W appliance exceeds that limit no matter what the battery size or advertised special boost mode is. The class makes sense for a day bag with electronics and lights. If you have cooking appliances, need a longer overnight reserve or run a large compressor, pick a larger station once you’ve checked the real demand.
What this page can’t tell you
- The solar times are theoretical lower bounds. The manufacturer does not promise them as recharge times.
- UPS compatibility for the AC2P and suitability for critical equipment are not established by this comparison.
By the numbers
What the data shows
What we found across the portable power stations we compare, plus the checked facts behind each finding.
How many fit
Only 7 of the 50 models checked meet every need here: “I have to carry it in one hand”, “I need power at campsites and on weekends away”, and “I charge modern laptops straight from it”.
7 models fit, out of 50 checkedShow the facts and the math
How we countedThe count uses each product's current fit ratings for “I have to carry it in one hand”, “I need power at campsites and on weekends away”, and “I charge modern laptops straight from it”. A need with no documented match is not counted.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| BLUETTI AC2P |
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| EcoFlow RIVER 3 |
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Ready to buy
See today’s price and what owners say
Open either model on Amazon for the current price, customer reviews and delivery options.
BLUETTI AC2P
You’d like to take in up to 200W from a solar setup that fits its low-voltage input.
See price & reviews on AmazonEcoFlow RIVER 3
A bit more base capacity at a similar weight appeals to you.
See price & reviews on AmazonEach link opens in a new tab.
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