EcoFlow RIVER 2 Max
A 512 Wh LFP portable power station with 500 W of AC output (1,000 W surge), a 60-minute full charge and a weight of about 6 kg.
- Best for camping and trips
- Power station
- 512 Wh
- 500 W output
- Made by EcoFlow.
- Capacity: 512 Wh with LFP cells rated for 80%+ capacity after 3,000 cycles.
- Output: 500 W in total, 1,000 W surge and X-Boost.
- Charges from the mains 0 to 100% in 60 minutes, or from solar at up to 220 W.
- Weighs about 6 kg; EcoFlow gives a 5-year warranty.
Not tested by us
We have not tested the EcoFlow RIVER 2 Max. The figures on this page come from the sources listed at the end of the page, checked on 11 November 2026, and we do not show prices. "Best for" is based on what the maker says the product is designed for, not on our own tests.
Key figures
512 Wh
Capacity
500 W
AC output (1,000 W surge)
60 min
Mains charge, 0-100%
Specifications
Last checked on 11 November 2026. The grey text under each name explains what the value means.
| Specification | Value |
|---|---|
| Storage | |
| CapacityHow much energy the battery stores. Bigger means longer runtime or more of your own solar power used later. | 512 Wh |
| Battery chemistryLFP (lithium iron phosphate) cells are known for long life and stable behaviour with heat. | LFP (LiFePO4) |
| Cycle lifeHow many full charge and discharge cycles the cells are rated for before they hold less than the stated share of their original capacity. | 80%+ capacity after 3,000 cycles |
| ExpansionExtra battery units that add storage to the same system. | Not stated |
| Output | |
| AC output (continuous)The power it can deliver all the time. Add up the watts of what you want to run at once and stay below this. | 500 W in total, pure sine wave, 230 V |
| AC output (surge)A short burst above the continuous rating, for appliances that draw more power when they start. | 1,000 W |
| X-BoostA mode that can run some devices above the normal output rating by lowering the voltage it supplies. Not suitable for every device. | Up to 1,000 W for devices that allow it |
| USB-APorts for phones, tablets and small devices. | 5 V 2.4 A (12 W max) |
| USB-CPorts for laptops, phones and tablets. Power delivery up to 100 W can charge most laptops. | Input and output, 5/9/12/15/20 V 5 A, 100 W max |
| Car outletA 12 V socket like the one in a car, for car accessories. | 12.6 V; DC output 10 A / 3 A / 3 A, 126 W max |
| Charging | |
| AC chargingHow fast it charges from a wall socket. Higher means a shorter wait. | 660 W max (220-240 V, 50/60 Hz) |
| Time to charge from the mainsHow long a full charge takes from a wall socket. | 0-100% in 60 minutes |
| Solar inputHow much solar panel power it accepts. A higher figure fills the battery faster on a sunny day. | 11-50 V, 13 A, 220 W max |
| Solar charging timeHow long a full charge takes from solar panels, in the conditions the maker names. | As fast as 3 hours with a couple of portable solar panels |
| Car chargingCharging from a car's 12 V or 24 V socket while driving. Slow, but useful on the road. | 12 V or 24 V, 8 A, 100 W max |
| Backup switchover (EPS)What happens when the grid fails. EPS means it takes over automatically. | EcoFlow's page describes an 'AC Always-On' transition to backup power but gives no switchover time |
| Housing and warranty | |
| Dimensions (L × W × H)Check the space before you buy, including room around it for airflow and cables. | 270 × 260 × 196 mm (EcoFlow does not say which number is which axis) |
| WeightMatters for lifting, wall mounting and moving it. | Approximately 6 kg (the feature list says 6.1 kg) |
| Operating temperatureThe range it is rated to work in. Cold and heat can reduce performance. | Discharging -10 to 45 °C; charging 0 to 45 °C; best 20 to 30 °C |
| Noise levelFan noise while working. | Up to 62 dB when charging and discharging at high wattage |
| ConnectivityHow you monitor and control it, usually through an app. | Wi-Fi and Bluetooth, with the EcoFlow app |
| WarrantyThe period the maker covers. Read the terms: conditions and capacity guarantees differ. | 5 years |
How long will it run your devices?
Choose how many of each device you want to run at the same time. The wattages are typical figures, so check the label on your own devices.
| Device | Typical power | How many |
|---|---|---|
| 10 W | ||
| 10 W | ||
| 15 W | ||
| 60 W | ||
| 80 W | ||
| 80 W | ||
| 40 W | ||
| 1,000 W | ||
| 2,000 W | ||
| 1,000 W | ||
| W |
The estimate assumes 85% of the rated capacity is usable after conversion losses. EcoFlow does not state this figure, so we use a cautious assumption. Real running times vary with temperature, battery age and how each device draws power.
Compatible with
What EcoFlow says this product works with. Anything not listed here is not confirmed.
- Solar panels
- Solar input is 11-50 V, 13 A and 220 W at most. EcoFlow's page lists bundles with its 160 W and 110 W portable panels.
- Car charging
- 12 V or 24 V car sockets, 8 A, 100 W max.
- App
- The EcoFlow app, over Wi-Fi or Bluetooth.
Rules where you live
A portable power station is not wired into your home, so it is simple to use almost anywhere. Connecting one to your home circuits to power the house is different, and the rules for that vary by country. See our country guides for the rules, incentives and prices where you live.
Strengths and things to check
Strengths
- 0-100% from the mains in 60 minutes (EcoFlow's figure)
- 500 W continuous, 1,000 W with X-Boost for suitable devices
- LFP cells rated for 80%+ capacity after 3,000 cycles
- 5-year warranty stated by EcoFlow
Worth checking before you buy
- 512 Wh is modest: a 400 W load runs for about an hour at best
- Not expandable as far as EcoFlow's page states
- Up to 62 dB at high wattage
- Not a home battery: do not connect it to your home circuits in a way that lets it feed the house
Change log
We record changes to this page here, so you can see when figures such as the warranty were last updated.
- 11 November 2026
- Page published. Warranty at publication: 5 years, as stated on EcoFlow's UK product page.
Where this information comes from
We have not tested the RIVER 2 Max. Every figure above comes from EcoFlow's UK product page, last checked on 11 November 2026. The RIVER 2 Max is a different product from the RIVER 2 and the RIVER 2 Pro. A value that the page does not state is shown as not stated.
We do not show prices, because they change often and differ between sellers.
- Manufacturer EcoFlow UK RIVER 2 Max page
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Common questions about EcoFlow RIVER 2 Max
What can the RIVER 2 Max run?
It has 500 W of continuous output, and EcoFlow says X-Boost can run devices up to 1,000 W. Divide 512 Wh by the device's draw for a rough running time.
How long does the RIVER 2 Max take to charge?
EcoFlow gives 0-100% from the mains in 60 minutes. Solar charging takes as fast as 3 hours with a couple of portable panels, within the 220 W input limit.
Is the RIVER 2 Max the same as a home battery?
No. It is a portable power station that you plug devices into. An installed home battery is wired into your electrics by an electrician. See our guide to plug-in and installed home batteries.
Related guides
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