It varies by capacity, output, and other desired features for protection against an unexpected power cut. You can find out the capacity and output needed by figuring out what appliances you plan to operate and how long you intend to use them in an emergency situation. The rule of thumb is the bigger the capacity and output, the more pricy a backup power gets. Some features grounded for outages are seamless automatic transition and several outlets, which will add to the cost as well. If you're seeking some essential coverage, the RIVER Series is the go-to. For heavier needs, DELTA Series offers robust backup batteries for home.

Generators are convenient in an outage. But not all generators offer the same benefits for continuous use. For example, gas generators should not run longer than 12–18 hours due to carbon monoxide risks and refueling needs. Inverter generators are a safer, more efficient upgrade, running quieter and cleaner. Solar generators go even further—they can operate longer when paired with solar panels. Both serve as clean, quiet options for battery backup for home needs.

For long-term storage, discharge the battery to 30% and charge it to 85% every three months(products that have not been charged and discharged for more than 6 months are not covered under the product warranty).

Delta 2 – AC (Power Socket) 70 Mins | Solar 3-6 Hours | Car 12V Socket 12 Hours.

Delta 2 Max – AC (Power Socket) 81 Mins | Solar  Hours | Car 12V Socket Hours.

Delta Pro – AC (Power Socket) 1.9 Hours | Solar Hours | Car 12V Socket  Hours.

The Delta 2 does not support dual charging.

The Delta 2 Max and the Delta Pro support dual charging. You can charge by solar and AC together. The specific settings for both charging methods can be set in the Energy Management of the EcoFlow APP (Settings->General Settings->Energy Management).

Delta 2 – Solar Input 500W, 11-60V, 15A

Recommended – EcoFlow Panels – 2 x EcoFlow 220W Foldable Solar Panel | EcoFlow 400W Foldable Solar Panel.

Delta 2 Max – : Solar Input 500W, Single Port Max ,11-60V, 1000W Dual Port

Delta Pro – Solar Input 1600W, 11-150V 15A

Recommended – 4 x EcoFlow 400W Solar Panels.

River 2 – AC (Power Socket) One Hour | Solar 3-6 Hours | Car 12V Socket 3 Hours.

River 2 Max- AC (Power Socket) One Hour | Solar 3-6 Hours | Car 12V Socket 6 Hours.

River 2 Pro – AC (Power Socket) One hour | solar 4.5-9 Hours | car 12V Socket 9 Hours.

River 2 – Solar Input 110W, 11-30V, 8A

Recommended – EcoFlow Panels – 100W Flexible Solar Panel | 110W Foldable Solar Panel.

River 2 Max – Solar Input 220W, 11-50V, 13A

Recommended – EcoFlow Panels – 100W Flexible Solar Panel | 110W Foldable Solar Panel | EcoFlow 220W Foldable Solar Panel.

River 2 Pro -Solar Input 220W, 11-50V, 13A

Recommended – EcoFlow Panels – 100W Flexible Solar Panel | 110W Foldable Solar Panel | EcoFlow 220W Foldable Solar Panel.

The River 2 range does not support dual charging.

EcoFlow power stations are compatible with most third party panels.  You will need to use the solar input information provided with your power station as a guide when choosing a compatible panel, and, of course you are welcome to contact us to check compatibly.