EcoFlow DELTA Portable Power Station Frequently Asked Questions

Can I connect more than one power station together in series? (For all power stations)

Yes, we recommend connecting 2 same units in series at most. Furthermore, please also note: 1. The slave unit must be fully charged before being connected. 2. Must not charge the main unit when the slave is connected.

Can I connect EcoFlow power stations to my house electric panel directly? (For all power stations)

Yes, but please note: - The transfer switch should be connected to the power station's AC output port; - You should disconnect the circuits from the grid before they are supported by the power station; - The total power consumption of the circuits should not exceed the output power rating; - The output will not be grounded if the power station is not connected to the grid.

Do you have wind charging solutions?

We do not have an official solution for wind turbine charging yet. However, a DIY solution is possible at your own risk. (As long as wind power meets our input XT60 port and AC inlet requirements of the power stations)

Can EcoFlow power stations be charged by solar panels and the 12V car cigarette lighter at the same time?(For all power stations)

No, this is because the car charging and solar charging cables share the same input (XT60 outlet).

Unable to Fully Charge to 100%

Perform three times SoC calibration by doing three complete charges and discharges.

Can EcoFlow power stations be charged by solar panels and the 12V car cigarette lighter at the same time?(For all power stations)

No, this is because the car charging and solar charging cables share the same input (XT60 outlet).

Do you have wind charging solutions?

We do not have an official solution for wind turbine charging yet. However, a DIY solution is possible at your own risk. (As long as wind power meets our input XT60 port and AC inlet requirements of the power stations)

Can I connect EcoFlow power stations to my house electric panel directly? (For all power stations)

Yes, but please note: - The transfer switch should be connected to the power station's AC output port; - You should disconnect the circuits from the grid before they are supported by the power station; - The total power consumption of the circuits should not exceed the output power rating; - The output will not be grounded if the power station is not connected to the grid.

Why won't my RIVER charge at all?

1. The charging temperature may be too high. If you used high-power electrical appliances for extended periods, don’t use the power station for a while to allow the temperature to drop. 2. The charging temperature may be too low. If the outside temperature is too low or the temperature of the battery cell is lower than 0°C, place the power station somewhere warmer. 3. The charging voltage or current may be too low. Charge the device according to the rated charging voltage and current. 4. Change the charging method or the cable. If the solar panel has no input and the car charger has input, it means that the solar panel or solar charging cable is broken. Try to replace the solar charging cable or solar panel. 5. If none of the above methods work, provide a video explaining the fault and contact support.eu@ecoflow.com

Why is the car charger not working?

1. Please confirm whether the car cigarette lighter has normal voltage and power output. 2. Try using a solar panel to charge the power station. If the solar panel can be used to charge, it means that there is a problem with the car charger to XT60 cable. Change the cable, and if the solar panel still cannot be used to charge, then contact support.eu@ecoflow.com

Why won't my RIVER charge at all?

1. The charging temperature may be too high. If you used high-power electrical appliances for extended periods, don’t use the power station for a while to allow the temperature to drop. 2. The charging temperature may be too low. If the outside temperature is too low or the temperature of the battery cell is lower than 0°C, place the power station somewhere warmer. 3. The charging voltage or current may be too low. Charge the device according to the rated charging voltage and current. 4. Change the charging method or the cable. If the solar panel has no input and the car charger has input, it means that the solar panel or solar charging cable is broken. Try to replace the solar charging cable or solar panel. 5. If none of the above methods work, provide a video explaining the fault and contact support.eu@ecoflow.com

Why is the car charger not working?

1. Please confirm whether the car cigarette lighter has normal voltage and power output. 2. Try using a solar panel to charge the power station. If the solar panel can be used to charge, it means that there is a problem with the car charger to XT60 cable. Change the cable, and if the solar panel still cannot be used to charge, then contact support.eu@ecoflow.com

Why is my power station input power hopping when i try to charge it? How do i fix this?

To fix this, try charging and discharging the unit 3 times. If it still occurs, please provide a video demonstrating the issue and contact support.eu@ecoflow.com

When does the fan work and when does it stop? (at what temperature)

Different power stations have various conditions that prompt the fan to start running of fan operation, for RIVER series, you can set that manually in the app, or set it to always be on. For DELTA (1300), the fan will turn on when the internal temperature is greater than 45°C.

How to store and maintain Ecoflow power station

1. To prolong the battery life, we recommend that you use and store the product in an environment of 20°C to 30°C, away from water, heat, and metal objects. 2. For long-term storage, discharge the product down to 30% and then charge it up to 60%. Continue to follow this procedure every 3 months. Units that are not charged and discharged for more than 6 months will no longer be covered under warranty. 3. For safety reasons, please do not store this product in an environment above 45°C or below -10°C over a long period.

Output Overload Error

AC output overload: the AC icon will appear on the screen, and the ""Overload"" icon will flash: 1. Check whether the connected device's power meets the unit's power range. Connect a device with a wattage of 1400W-2200W to confirm that X-Boost is turned on in the app. If it's already turned on, connect to the app again. 2. In EPS mode, DELTA supports a maximum of 1400W. Confirm whether the electrical equipment is within this range. 3. The power of the electrical equipment is too large, causing it to fail to operate. DC output overload: the ""USB"" and ""Overload"" icons will flash together on the screen: 1. The output of the DC/car charger is overloaded. Check that the rated current of the device is under 8A. If the current is too high, it will cause overload, and the car charger may overheat. 2. The output of the DC-USB-Type C is overloaded. Confirm whether the electrical equipment is within the current limit of the outlet.

Short-term Power Jump When Charging and Discharging

Perform the SoC calibration 3 times. If the problem still occurs, take a video showing the fault and contact the EcoFlow Customer Service team.

DELTA Shut Down Unexpectedly

1. The battery power has run out 2. When AC and DC power is off, and there is no input or output power for 30 min, the device will automatically shut down.

Device does not boot

1. Check if it is caused by an insufficient battery. If it is, charge and turn it on again. If the charging fails, please follow the instructions on charging failures. 2. If there is no response after you short press or long press (3 seconds) the Main Power Button, please contact EcoFlow Customer Service.

DELTA Won't Charge From the Car Charger

1. Confirm that the 12V car charger has a standard voltage and power output. 2. Use another car charging cable to see whether the problem is with the standard car charging cable. Alternatively, use a solar panel to charge DELTA. If the solar panel works, the problem is with the car charger to XT60 cable. If the solar panel does not charge either, contact support.eu@ecoflow.com

Power Runs Out Too Quickly

1. Check if there are external high-power electrical appliances. For example, if the total power of a connected device is about 1200W, the 1260Wh battery of DELTA mini will generally run out in about 1 hour. 2. Perform 3 fully charging and discharging rounds to see if the problem still occurs.

Electrical Appliances Won't Charge

1. If DELTA is charging from an AC outlet, confirm that the AC switch is turned on. The same goes for DC outlets. 2. If the AC or DC switch is turned on and it still cannot be charged, confirm whether the output power of DELTA meets the rated wattage of the electrical appliance. 3. When the power from a DC source or car charger is less than 1 watt, the charging power will not be displayed, but the unit is charging. Try charging from another power source to see if the charging power is displayed. 4. When the screen displays an overload alarm, the charging power is too high. Shut down and allow the unit to cool down for 30 minutes, or try using a low-power device before charging again. If there is still an overload prompt, take a photo or video of the issue and contact the after-sales department) 5. The AC switch will automatically turn off after 12 hours if the power of the electrical appliance is less than 10W because the power detection is equivalent to zero power output.

Electrical Appliances Won't Charge

1. If DELTA is charging from an AC outlet, confirm that the AC switch is turned on. The same goes for DC outlets. 2. If the AC or DC switch is turned on and it still cannot be charged, confirm whether the output power of DELTA meets the rated wattage of the electrical appliance. 3. When the power from a DC source or car charger is less than 1 watt, the charging power will not be displayed, but the unit is charging. Try charging from another power source to see if the charging power is displayed. 4. When the screen displays an overload alarm, the charging power is too high. Shut down and allow the unit to cool down for 30 minutes, or try using a low-power device before charging again. If there is still an overload prompt, take a photo or video of the issue and contact support.eu@ecoflow.com 5. The AC switch will automatically turn off after 12 hours if the power of the electrical appliance is less than 10W because the power detection is equivalent to zero power output.

Charging Overload Error

The 'Recharging Time' icon, the 'Exclamation Point' icon, and the 'Overload' icon will flash together on the screen. 1. Check whether the input current is too high. Once you have confirmed that is not the problem, restart the machine and charge again. 2. If the overload still occurs, please contact support.eu@ecoflow.com

Using DELTA in EPS Mode

DELTA supports EPS (Emergency Power Supply). When DELTA is plugged into the grid to charge using AC, any load plugged into the DELTA will be directly powered from the grid and not DELTA. If there is a power outage, DELTA automatically switches to its battery supply mode within 30 milliseconds. Any device plugged into the DELTA will have no power for 30 milliseconds, making it unsuitable for desktop computers or data servers which must be reconnected to power within 0 milliseconds (UPS). UPS is unnecessary for all devices, and we advise testing yourself before using the EPS function. It is recommended that only one device is plugged into DELTA to avoid overloading.

Electromagnetic interference

The use of communication equipment or equipment with electromagnetic interference, such as walkie-talkies and electromagnetic wave generators, will disrupt the power supply. You can use an extension cord to extend it a little bit and use it at a longer distance.

Can Other Solar Panel Brands Charge DELTA?

DELTA can be charged using any solar panels with the same solar connectors and within an input range of 400W 10-65V DC 10A.

Using other products to charge Delta

In addition to charging from the grid, car, and solar, other sources such as generators and inverters can also be used if they output 220–240V (50Hz/60Hz) of sine wave AC power. When charging DELTA, the AC input power needs to be greater than 1500W to enable X-Stream function.

Is Dual Charging (AC and Car Charger) Supported?

DELTA only allows one charging method at a time.

Using EPS Mode

1.In EPS mode, the DELTA uses the by-pass function. The DELTA connects to the grid and receives direct AC charging, and the load device directly uses the AC power from the grid. DELTA acts as a pass-through unit. 2. In EPS mode, when the battery has between 97% and 100% power, the AC input will not charge the battery. When the power is below 97%, the AC input will be used as a by-pass output and also charges the battery.

DELTA Maintenance and Storage

1. To prolong the battery life, we recommend that you use and store DELTA in an environment of 20°C to 30°C, away from water, heat, and metal objects. 2. For long-term storage, discharge the product down to 30% and then charge it up to 60%. Continue to follow this procedure every 3 months. Units that are not charged and discharged for more than 6 months will no longer be covered under warranty. 3. For safety reasons, please do not store this product in an environment above 45°C or below -10°C over a long period.

Charging power of solar panel

Solar charging input: 400W, 10-65V, DC 10A (Max) Charging Time: 4-8 hours (110W x 4)

What is the Car Charger Outlet Type?

The XT60 car charger is a standard outlet. Use the included 1.5m car charging cable to charge.

What is the Battery cell type of Delta?

The types of batteries are: Cylindrical 18650, NCM batteries, 10 parallel and 14 series, 140 batteries

Solar Panels Won't Work

1. The solar panel should be placed outdoors. Placing indoors will affect functionality. 2. Check for errors on the LCD Screen and follow the prompt to solve the problem if one exists. 3. Check the connection by removing and reconnecting the cable. 4. Only solar panels with a 11-65V input and DC 10A max current can be connected in parallel. Check if the voltage and current of the connected solar panels are within the range and whether the positive and negative poles are connected correctly. 5. If using a third-party connection cable, the cable length should not exceed 3m. If it is longer than 3m, change it to one with a diameter of 6.5 mm and a wire diameter of 4 mm². 6. Try charging the unit with a car charger. If it works, the solar panel has a connection issue or other problem. If the car charger doesn’t work either, please record a video and send it to support.eu@ecoflow.com for troubleshooting.

Solar Panel Charging Power is Low

If the connected solar panel is standard, the charging power is affected by the light intensity and angle: 1. Place the panels from 9:00 to 15:00 when the sun is at its strongest. Avoid using solar panels on cloudy days or in the shade. 2. The solar panel needs to be placed at an angle of 90° to the sunlight to get the most solar energy. 3. Check to see if Quiet Charging is on in the EcoFlow app.

Short standby time

1. Check the temperature of your environment. If it is in a low-temperature setting, place it somewhere at room temperature. 2. Perform a complete charge and discharge.

Charging a Car Battery

When the car is out of power, you can use a dedicated jumper cable to charge the battery in around 15-20 minutes. Jumper cables are sold separately from a third party. (Note: When charging, do not start the car otherwise, it will cause the battery to malfunction)

Using Solar panels in Series and Parallel

To charge DELTA using multiple solar panels, ensure that the panels are in a series or parallel connection and that the voltage and current are 10-65W DC 10A. It is not recommended to use solar panels with different wattages.

Does it support charging while using?

Yes, DELTA supports charging and discharging while charging from vehicles, solar panels, etc. However, when the unit's battery is low or about to run out, it is best not to use it while connecting to DC charging (solar/vehicle charging). If the input is less than or equal to the output power, the device will continue to consume power, which may result in power loss and eventually damage the battery.