The EcoFlow STREAM Ultra is a hybrid Plug & Play home battery that sits one step above the STREAM Pro: same 1.92 kWh usable capacity, but with a direct solar input pushed up to 2000 W – roughly four 500 W panels. The 23.1 kg housing measures 28.4 × 25.5 × 45.8 cm, is IP65 rated, self-heats below 5 °C and stays quieter than 30 dB even under load.

• 1.92 kWh usable storage per unit, expandable to 11.52 kWh with up to six batteries in parallel
• Direct solar input up to 2000 W, well suited to installations with four 500 W panels
• AC charging up to 1050 W from the grid, no external inverter required
• Feeds up to 1200 W back to the home on a dedicated circuit, 800 W on a shared group
• Integrated socket delivers 1200 W plus 1100 W of pass-through, so up to 2300 W of appliances can be served
• 6000 cycles down to 70% of the original capacity and a 10-year manufacturer warranty
• IP65, self-heating below 5 °C, operating range −20 to 55 °C, Wi-Fi and Bluetooth for the EcoFlow app
• Works with EcoFlow P1 smart-meter, Smart Meter 120A, x Shelly Pro 3EM, Shelly 3EM, Homey P1 dongle and Tibber Pulse for fully automatic charge/discharge

Key specs

• Capacity: 1920 Wh (up to 11 520 Wh)
• Cycle life: 6000 cycles to 70%
• AC input: 1050 W
• AC output: 1200 W
• Grid feed: 1200 W (own group) / 800 W (shared)
• Direct solar input: up to 2000 W
• Operating temperature: −20 to 55 °C
• Noise: <30 dB
• IP rating: IP65
• Dimensions: 28.4 × 25.5 × 45.8 cm
• Weight: 23.1 kg
• Wi-Fi and Bluetooth: yes
• Warranty: 10 years

A logical pick for homes that plan a larger balcony or garden PV array with four modules and want a hybrid battery that can absorb the full daytime yield without leaving power on the table.