The EcoFlow River Series is perfect for providing backup power to your smaller electronics, such as synthesizers, digital mixers, and wireless microphone equipment.
The EcoFlow RIVER 3 Max is built for the program that simply needs more power. With an expanded 858Wh capacity and 600W of continuous output, it is the ideal "set-and-forget" power source for your electronic instruments. Whether you are running a complex multi-keyboard synthesizer station or providing a bulletproof backup power for your digital mixer and wireless racks, the RIVER 3 Max ensures your electronics system stays live from the lot to the field.
Why the RIVER 3 Max is a "Must-Have" for Your Program:
- Extended Rehearsal Life: Thanks to the wire-free extra battery, you get up to double the runtime for your electronics, making it perfect for those 12-hour "all-day" Saturday rehearsals.
- Professional-Grade UPS: With a lightning-fast 10ms switchover, your electronics are protected against stadium power flickers or extension cables getting unplugged.
- Clean, Silent Energy: Operating at whisper-quiet levels (less than 30dB), this unit sits silently on your cart. It won't distract your performers, audience members, or judges. The silent treatment never sounded so good.
River 3 Max
SKU: River 3 Max
$419.00 Regular Price
$389.00Sale Price
Student Safety & School Compliance
- Zero Fumes & Gas-Free: Completely safe for use inside the band room, equipment trucks, or crowded stadiums.
- Trip-Free Sidelines: By keeping power local to your synth or mixer cart, you eliminate long, orange extension cords crossing the track, significantly reducing trip hazards for students and staff.
IP54-Rated Durability: The battery cells are protected against dust and moisture, ensuring safety and reliability during those humid or misty morning rehearsals.
Reliability & Longevity
- 10-Year Service Life: Built with automotive-grade LiFePO4 battery cells designed to last for over 3,000 cycles.
- Rugged Construction: Fire-retardant and designed to withstand falls of up to 3 feet, ensuring it survives the bumps and bruises of riding in the equipment truck.
- 5-Year Warranty: Backed by EcoFlow’s industry-leading support to ensure your program's investment is protected across multiple seasons.

