EcoFlow River 3 Max Portable Power Station with 600W AC output & Built in 572Wh (47Ah@12V) LFP Battery

1.Expand Your Energy Storage: Add an extra 286Wh of energy storage to RIVER 3 Plus for 572Wh, perfect for increasing energy storage for outdoors or power outages. Run a car fridge for 7.2 hours or travel kettle for 42 min. With a simple pogo pin connection, stack the extra battery in seconds without extra cables or screws. 2.Use Independently: Lighten your load and use the extra battery on its own without RIVER 3 Plus. Use its 140W USB-C port for charging small devices and recharging the battery when you're on the go. 3.10 Years of Daily Use: With LFP battery chemistry, the battery pack has a 6× longer life than the industry average. Using exclusive X-Guard, the extra battery is protected with real-time monitoring and 40 protective features including overheating and short circuit. 4.Robust & Reliable: IP65 waterproof rating protects against water splashes, making it perfect for outdoor use. Designed to withstand extreme heat with a UL 94V-0-rated casing and has been rigorously drop tested up to 3.3 ft without damaging the battery. 5.What's in the Box: RIVER 3 Max(RIVER 3 Plus + Extra Battery EB300), Quick Start Guide and 5-Year Service. Core Specs: 572Wh capacity | 600W output Ultra-fast Response: <10ms auto-switch Long-lasting Battery: LiFePO4 chemistry for up to 10 years of use Rapid Recharging: 4 versatile charging methods; 0-100% AC charge in just 1.5 hours Reliable Runtime: Powers a 600W PC for 42 minutes Versatile Connectivity: AC, DC, USB-C/A output ports Smart Management: Data communication and management software support Whisper-quiet Operation: 30 dB noise level at 0.5m Product CompositionRIVER 3 Max = RIVER 3 Plus + Smart Extra Battery (EB300, 288Wh) Runtime Performance (on a full charge): NAS Server (40W): 10.4 hours Car Fridge (60W): 7.2 hours Game Console (100W): 4.4 hours Refrigerator (450W): 1 hour Desktop (600W): 42 minutes Small Electric Kettle (800W): 42 minutes Drone (40W): 11 recharges