EcoFlow River 2 Max Portable Power Station – 512Wh Backup Battery with Fast Charging & 500W Output for Camping, Travel & Emergencies
EcoFlow River 2 Max Portable Power Station – 512Wh Backup Battery with Fast Charging & 500W Output for Camping, Travel & Emergencies
Double the Power. Same Grab-and-Go Freedom.
When you need more juice without sacrificing portability, the EcoFlow River 2 Max delivers. With double the capacity of the standard River 2, this powerful, lightweight unit is built for serious campers, weekend warriors, vanlifers, and off-grid preppers.
✅ 512Wh Capacity + 500W Output (1000W Surge) – Run your phone, laptop, fridge, lights, drone, fan, camera gear, and more — all at once.
✅ Charges 0–100% in 60 Minutes – One of the fastest-charging portable power stations in its class.
✅ LiFePO4 Battery = 10 Years of Reliable Power – Over 3,000 charge cycles and built-in safety you can trust.
✅ Works with Solar, Wall, Car, or USB-C – Recharge anywhere, anytime, with your choice of 4 flexible inputs.
✅ Dual AC Outlets + USB-A, USB-C, and DC Ports – Power up to 9 devices at once with no compromises.
✅ Only 13.4 lbs – Light enough to carry. Strong enough to power your essentials.
🔗 Why Dead End Survival Recommends the River 2 Max
When we’re miles off-grid or preparing for grid-down scenarios, the River 2 Max is our go-to. It’s the perfect mix of lightweight mobility and serious power, giving you the confidence to adventure — or survive — without limits.
🏕️ Ideal For:
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Long-Weekend Camping & Overlanding
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Emergency Power Backup at Home
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CPAP Machines & Medical Gear
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Off-Grid Van Life & RV Use
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Outdoor Events, Film Shoots & Remote Work
🛒 Power Up Now – Before the Lights Go Out
Stock up on portable power you can count on. Order the EcoFlow River 2 Max today for fast U.S. shipping, premium support from outdoor experts, and reliable energy on demand.
Power. Never Been This Easy
Charge 0-100% in 1 Hour
Fastest charging speeds ever.
RIVER 2 Max beats the industry charging speed standard, fully charging in only 60 minutes. That's 5x faster than other portable power stations on the market and 38% quicker than previous generations. Fully charge RIVER 2 Max while you pack your bags, so you'll always be ready for a last-minute trip.
LiFePO4 Battery Chemistry
Safe, for up to 10 years of use.
With upgraded long-lasting LFP battery chemistry at its core, charge and empty RIVER 2 Series over 3000 times. That's pretty much 10 years of everyday use[1] and 6x longer than the industry average. With LFP cells, RIVER 2 Series is safe, durable, and highly efficient, even in warm temperatures.
The first power station that's TÜV Rheinland safety certified.
RIVER 2 Series is a cut above the rest as the first portable power station in the world to earn the TÜV Rheinland certification for safety. With it’s high safety standard, the TÜV Rheinland certification means the security and reliability of your RIVER 2 is guaranteed.
5-year Warranty
With one of the most extended warranties in the industry, we go the extra mile to give you peace of mind.
Smart Battery Protection System
Our state-of-the-art Battery Management System (BMS) constantly monitors the voltage, current, and temperature of RIVER 2 Series with multiple aspects of protection, extending its life to the max.2
4 Ways to Charge
Charge anywhere.
With 4 different ways to top up the RIVER 2 Series, there’s a recharge option no matter what. From fast AC to in-car charging when you’re on the go.
AC Charging
Car Charging
Solar Charging
USB-C Charging
Why not harness renewable energy while you camp or head off on a trip? Plug in a couple of portable solar panels to fully recharge off-grid in as fast as 3 hours.
X-Boost Up to 1000W
Small size. Big power.
RIVER 2 Max has an AC output of up to 500W. Need to power a vacuum cleaner or sandwich maker? Crank it up to 1000W with X-Boost mode to run up to 80% of essential appliances.
Lightweight at only 13.2 lbs
With a compact portable design, taking travel-friendly power off-grid has never been this easy. With a light-weight that's 22% lighter than the previous generation, RIVER 2 Max is ready to power all your outdoorsy escapades, from boondocking to BBQs at the beach.
<30ms EPS Auto-switch
Ultra-fast home backup switchover.
With a switchover speed of less than 30ms, you won't even know the power was down. Use RIVER 2 Series as an emergency power supply for overnight outages to keep essentials running from a light to your fish tank.
EcoFlow App
Control at your fingertips.
Use the EcoFlow app to control and monitor RIVER 2 Series, even from afar. View charging levels, customize settings, and adjust charging speeds, all from the convenience of your phone.
LEARN MORE >
Power. Anywhere. Anytime.
RIVER 2 Max Specs
Capacity
512Wh
Net Weight
Approximately 13.4lbs
Dimensions
10.6 x 10.2 x 7.7inches
AC Input
100-120V 50Hz/60Hz, 660W Max
Solar Input
11-50V, 13A, 220W Max
USB-C Input/Output
5/9/12/15/20V, 5A, 100W Max
DC Output
12.6V, 10A/3A/3A, 126W Max
USB-A Output
5V, 2.4A, 12W Max
AC Output
120V 50Hz/60Hz, 500W (Surge 1000W)
Cell Chemistry
LFP
Cycle Life
80%+ capacity after 3000 cycles
Discharge Temperature
14°F to 113°F/-10°C to 45°C
Charge Temperature
32°F to 113°F/0°C to 45°C
Optimal Operating Temperature
68°F to 86°F/20°C to 30°C
Storage Temperature
14°F to 113°F (68°F to 86°F is best)/-10°C to 45°C (20°C to 30°C is best)
Car Input
12V/24V, 8A, 100W Max
DC5521 Output
12.6V, 3A, 36W Max
App Control
Wi-Fi, Bluetooth
Product features
Product features
Materials and care
Materials and care
Merchandising tips
Merchandising tips
