EcoFlow River 3 Max Plus Portable Power Station | 600W 858Wh
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The Owner's Insights on the EcoFlow River 3 Max Plus Portable Power Station
This is the River 3 Plus with an EB600 battery already clipped on, so you get your 858Wh in one purchase instead of two. Same 600W output, same under-10ms UPS switch, three times the runtime.
858Wh is the size where your power station stops being a phone charger and starts holding real gear. EcoFlow rate it at about 6.7 hours running a phone, a router, a laptop and a light together, and around an hour on a 600W desktop.
It's still under 30dB, so it lives in your bedroom or your office without you noticing it. Full charge off the wall takes 2.3 hours.
Why You'll Love the EcoFlow River 3 Max Plus Portable Power Station
- 858Wh of real capacity. Fridge overnight, or a long outage.
- 600W output, 1,200W X-Boost. Runs heating gear too.
- Under 10ms UPS switch. Computers and modems never drop.
- Around 6.7 hours backup. Phone, router, laptop and a light.
- Full charge in 2.3 hours. Off the wall, battery-safe.
- LiFePO4, 3,000 cycles. About ten years of everyday use.
- Under 30dB. Quiet enough to sleep next to.
- Solar, car and generator input. Four ways to fill it.
Why You Should Consider an EcoFlow Portable Power Station
EcoFlow build portable power stations, solar panels and home backup systems, and the RIVER 3 Max Plus is the top of their compact series. See the rest of the portable power station range.
EcoFlow River 3 Max Plus Portable Power Station Specifications
| Model | EcoFlow RIVER 3 Max Plus |
| Capacity | 858Wh |
| Configuration | RIVER 3 Plus with an EB600 extra battery |
| Cell chemistry | LiFePO4 |
| Cycle life | 3,000 cycles to 80% capacity |
| AC output | 600W total, pure sine wave |
| X-Boost output | Up to 1,200W |
| USB-A | 2 ports, 12W max per port |
| USB-C | 2 ports, up to 100W max |
| Car outlet | 12.6V, 10A, 126W max |
| UPS switchover | Under 10ms |
| AC charge time | 0 to 100% in 2.3 hours |
| Solar input | 220W max |
| Charging methods | AC, solar, car and generator |
| Backup time | About 6.7 hours on a phone, router, laptop and light |
| Noise level | Under 30dB at 0.5m |
| Battery protection | IP54, fire-retardant shell, 1m drop rated |
| Connectivity | Bluetooth, Wi-Fi and the EcoFlow app |
| Warranty | 5 years |
What 858 watt-hours holds through a real outage
This is the capacity where the numbers get useful. Your 45W camp fridge runs somewhere around 15 hours. Your router and your laptop together will see you through most of a day. Your 600W desktop gets you roughly an hour, which is long enough to finish what you were doing rather than just save it. EcoFlow rate your whole essentials bundle, phone, router, laptop and a light, at about 6.7 hours. What it still won't do is run your air conditioner or your welder, because 600W is 600W.
Why is it two boxes rather than one bigger one?
Your Max Plus is a River 3 Plus with an EB600 clipped on the top, which sounds like a compromise and is mostly an advantage. You can pull the extra battery off and take just the 286Wh head unit camping, then put it back on for your next storm season. The EB600 also works on its own with 140W USB-C charging, so it doubles as a very large power bank. What you give up is a slightly taller stack than a single-case unit of the same capacity.
Two point three hours from flat, without cooking the cells
EcoFlow's X-Stream charging fills 858Wh from the wall in about 2.3 hours, and it does it with trickle-charge control at the top of the range rather than hammering your cells flat out to 100%. That matters if you leave it plugged in permanently as your UPS, because the battery is the expensive part and heat is what kills it. You can also slow the charge down in the app if you want to be gentler on it or quieter overnight.
Running it off solar for real off-grid use
It takes up to 220W of solar input, which is roughly what a decent 220W folding panel puts out at the peak of a good day. In real Australian sun that's around 4 to 5 useful hours to refill it from flat, so one solid day of sunshine covers your night of running essentials. Our 110W panel tops it up more slowly, and two of them get you to the full input. Ring the store on 03 7056 6732 and we'll match a panel to it.
It's quiet enough to actually live with
Under 30 decibels at half a metre is about the level of a quiet library, which is the number that decides whether your power station lives in your bedroom or out in your shed. Most units this size run a fan hard under load and you hear it all night long. EcoFlow's X-GaNPower electronics run cooler, so your fan does less work. If you're buying this to keep your CPAP machine or your modem going overnight, quiet isn't a luxury, it's the whole reason you'd pick this over a generator.
What's Included
- EcoFlow RIVER 3 Max Plus portable power station
- EB600 extra battery, attached
- AC charging cable
- Car charging cable
- USB-B to USB-A UPS communication cable
- Quick start guide and warranty card
- 5-year manufacturer warranty
What's Not Included
- A solar panel
- A solar charging cable
- A generator
The UPS communication cable is in the box, so it works as a desktop UPS straight away. Solar panels and leads are separate. Ring the store on 03 7056 6732 and tell us what you want it to hold overnight and we'll check the sums with you.
Not Sure Which Portable Power Station Suits You?
The River 3 Max Plus suits you if you want a full night of essentials through an outage, or real capacity for camping, in something quiet enough to sleep beside. It's the wrong pick if you only need the modem and the computer to stay up, where the smaller River 3 Plus costs less, or if you need to run tools and an air conditioner, where a DELTA 3 Plus has the output. Call the store on 03 7056 6732, or send an SMS to 0476 330 590.
EcoFlow River 3 Max Plus User Manuals
The Max Plus is a River 3 Plus head unit with an EB600 extra battery attached, so two manuals cover it: the head unit manual and the extra battery manual.