Anker SOLIX C800 vs EcoFlow RIVER 2 Max: Only RIVER accepts USB-C charging, and C800 runs larger checked loads

Check these before you buy

• The models to look for are US C800 A1753 and the 512 Wh RIVER 2 Max EFR610. C800 Plus has a different package of included lights. The 499 Wh RIVER 2 Max 500 EFR607 is a different version that the same EcoFlow manual covers. Verify the model, region, seller, condition and package you have selected. Nothing here promises a current price, stock, seller or delivery.
• Start from the appliance's input requirements. With the C800, confirm 120 V, 60 Hz and a combined AC running demand of no more than 1,200 W. With the US RIVER 2 Max, confirm 120 V at the right 50 or 60 Hz setting and a combined AC running demand of no more than 500 W. Count every AC device that runs at the same time. Check starting demand against the appliance and station guidance, especially for motors or compressors. A running-watt label alone doesn't settle whether startup will work.
• A boost number should not be taken as an ordinary startup allowance. In the table that was inspected, EcoFlow lists 1,000 W peak with no applicable duration, and Anker's C800 guide gives no separate quantified starting-surge rating. Before relying on either, confirm the real starting load with the manufacturers or a suitable compatibility check. This comparison approves no motor, refrigerator or tool.
• Before using the AC sockets on either station, switch on both the main power and the AC output. C800 can shut itself off when it detects no plug for more than 15 minutes. On EcoFlow, the USB ports work as soon as main power is on. Check the output and standby settings you choose against your equipment, since a lit display doesn't prove an AC socket is live.
• To charge the EcoFlow over USB-C, compare the source's Power Delivery output profiles with the manual's input list of 5, 9, 12, 15 and 20 V. The total limit is 100 W. Reaching that ceiling takes a source that offers 20 V at 5 A and a USB-C cable that carries 5 A and has electronic marking. Look at the individual port and the power available to it when other ports are in use. A charger with a higher headline number or a 240 W cable does not lift the station's 100 W limit, while a 60 W cable or a lower-power source can hold input down. Test actual charging with your chosen source before the trip. The cable and adapter are not included.
• The C800 recharges through its AC inlet or the documented solar/car input and never through USB-C. AC and car charging cables are included, according to the US guide. Solar input runs from 11 to 60 V, up to 10 A and 300 W, with the correct XT60 connection. Don't infer that a panel or solar cable comes with the standalone station. Ordinary AC charging doesn't need UltraFast, an optional mode that has to be enabled in the Anker app.
• This comparison stays with rated AC operation on battery power. SurgePad kicks in automatically above C800's rated output, doesn't work in AC bypass, and leaves out strict-voltage or voltage-protected devices. X-Boost lowers the voltage and likewise leaves out voltage-protected appliances. A lower voltage can change how an appliance performs and affect other devices on the station. Neither mode gets the station to the headline wattage at normal 120 V.
• Put the station somewhere dry and stable with the vents clear. C800 can discharge from -4 to 104°F and charge from 32 to 104°F, while EcoFlow discharges from 14 to 113°F and charges from 32 to 113°F. If a temperature or overload warning appears, stop and follow the exact manual. Never recharge a freezing unit, and don't assume a parked vehicle stays in its temperature range.
• The 768 Wh for C800 and 512 Wh for this RIVER 2 Max are battery energy specifications. They don't prove usable AC energy or hours of service, because conversion loss, idle consumption, temperature, battery state and a changing load all matter. Make sure the whole plan supplies enough energy for your actual session. This page promises no appliance runtime.