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EcoFlow DELTA Max Frequently Asked Questions
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.
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 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.
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.
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.
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.
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 power station charging slowly? How can I solve this?
1. If the temperature is too high, turn off the unit or stop the load, this will let it cool down. 2. If the temperature is too low for charging, place the unit somewhere warmer or let electrical appliances discharge it for a while. 3. The charging power of the unit is related to the battery level. When the unit starts charging from 0% or is about to be fully charged, it is normal that the charging power is low.
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 does the car charging port not output any power?
1. Confirm whether the DC switch is turned on, and the DC switch will light up to indicate it is on. 2. Try to replace the head of the charger to see whether the cable is faulty 3. If none of the above methods work, provide a video explaining the fault and contact support.eu@ecoflow.com
How to Calibrate SoC
Discharge the unit to 0%, then charge to 100% until there is no input.
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
Can I use the DELTA Max Extra Battery with both DELTA Max 1600 and DELTA Max 2000?
Yes, DELTA Max Extra Battery is compatible with both DELTA Max models, 1600 and 2000. Each supports up to two Extra Batteries.
Device Will Not Boot
1. Make sure the battery has sufficient capacity. If not, charge and turn it on again. If charging continues to fail, 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, contact EcoFlow Customer Service.
DELTA Max Won't Charge Appliances
1. If DELTA Max 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 Max 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.
DELTA Max Won't Charge
1. The charging temperature is too high. If you use high-power electrical appliances for a long time, stop using the unit until the temperature drops. 2. The charging temperature is too low. If the outside temperature is too low or the temperature of the battery cell is lower than 0°C, put DELTA Max somewhere warmer. 3. The charging voltage or current is too low. Charge the device according to the rated charging voltage and current. 4. Change the charging method or the cable when experiencing charging issues. Replace the cable or power source. 5. If none of the above methods work, provide a video showing the fault and contact support.eu@ecoflow.com
DELTA Max 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 Max. 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
The EF App Can't Bind to DELTA Max
When unable to connect to the unit, the serial number is not displayed, or "Unknown" appears after binding; the serial number has not been confirmed. Please contact support.eu@ecoflow.com
The EF App Won't Connect to DELTA Max
1. Long press the IoT button under DELTA Max’s screen for 3 seconds until the WiFi icon flashes and the DELTA Max’s WiFi is turned on. 2. With the mobile phone near DELTA Max, search for the WiFi signal starting with """"EcoFlow"""" or """"DELTA Max"""" and follow the prompts to connect. 3. If you cannot find DELTA Max's signal, you can restart DELTA Max or try with another mobile phone. 4. If none of the above methods work, please provide the serial number photo at the bottom of the device and contact the support.eu@ecoflow.com
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 2400W-3000W 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 Max supports a maximum of 2200W. 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 three times SoC calibration by doing three times complete charges and discharges. If the problem still occurs, take a video showing the fault and contact the EcoFlow Customer Service team.
Can Other Solar Panel Brands Charge DELTA Max?
DELTA Max can be charged using any solar panels with the same solar connectors and within an input range of 800W 11-100V DC 13A.
Does DELTA Max Support Charging While in Use?
Yes, DELTA Max 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.
Using other products to charge Delta Max
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 Max, the AC input power needs to be greater than 2400W to enable X-Stream function.
What is X-Boost?
This product supports X-Boost, an EcoFlow feature that supplies power to devices with a wattage of 3000W. X-Boost ensures the device does not fail due to overload protection. When using X-Boost, DELTA Max still has a rated power output of 2400W.
DELTA Max Maintenance and Storage
1. To prolong the battery life, we recommend that you use and store DELTA Max 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.
Using the Smart Generator
The EcoFlow Smart Generator can charge DELTA Max (up to 1800W), expanding the capacity (up to 2x5.4kWh) and extending the power supply time. When the Smart Generator is connected to DELTA Max and battery capacity is less than 20% (can be set in the app), the Smart Generator will automatically start topping up the battery.
Charging and discharging with the Extra Battery
When charging/discharging, the BMS will charge the one with low voltage first. It will then balance the charge in the two units before charging/discharging further.
How to Upgrade DELTA Max's Firmware
1. Long press the IoT button under the screen for 3 seconds, and the WiFi icon on the screen will flash. After confirming that DELTA Max's WiFi is on, connect your phone to the unit. 2. Open the app and click the "+" in the upper right corner to add a device. Connect to the WIFI or a mobile phone hotspot. Go to the DELTA Max page, then Settings>Firmware>Update. 3. If you can't find the "Upgrade" reminder, it means that your home router is not connected. Press and hold the IoT button under the DELTA Max's screen for 3 seconds to reconnect. 4. Upgrading won't be complete if it is interrupted. Restart DELTA Max, reconnect the WiFi and DELTA Max, then update again. 5. If you can't update using the app or there is still a failure after updating, contact support.eu@ecoflow.com.
What Battery Cell Type Does DELTA Max Use?
There are 224 cylindrical lithium-ion 18650 NCM batteries used in DELTA Max, in a configuration of 16 parallel and 14 in series.
DELTA Shut Down Unexpectedly
1. The battery is running out and needs recharging. 2. The default standby time of this product is 2 hours and can be set on the app. If the switches for the AC/DC outlets are not turned on and the product is not connected to any load, the product will automatically shut down after 2 hours. The default standby time can be set in the Ecoflow App.
Is Dual Charging (AC and Car Charger) Supported?
DELTA Max can dual fast charge up to 3000W, as long as an Extra Battery is connected.
Using EPS Mode
DELTA Max supports EPS (Emergency Power Supply). When DELTA Max is plugged into the grid to charge using AC, any load plugged into the DELTA Max will be directly powered from the grid and not DELTA Max. If there is a power outage, DELTA Max automatically switches to its battery supply mode within 30 milliseconds. Any device plugged into the DELTA Max 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 Max to avoid overloading.
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.
Screen Icons Not Fully Displayed
1. If DELTA Max is placed on a carpet, move it to a wooden floor or solid flooring. 2. Take a video showing the error and contact support.eu@ecoflow.com
Cannot Find the Home WiFi
1. Press the IoT button again to reconnect. 2. Use another mobile phone to set up a hotspot connection. If the DELTA Max can connect to the phone's hotspot connection, it means that the connection function of the DELTA Max is normal. Since the WIFI connection only supports 2.4GHz, check the home router. If it is 2.4 GHz, modify the router configuration. 3. If none of the above methods work, provide a photo of the serial number at the bottom of the device and contact support.eu@ecoflow.com
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)
How to Deal with 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 slightly and use it at a longer distance.
How to Use X-Boost
X-Boost has been enabled by default, but you can use the EcoFlow app to turn this function on or off. X-Boost cannot be used in the following situations: (1) AC output is turned on in the charging state (in bypass mode) (2) The X-Boost mode is turned off. X-Boost is suitable for heating and electrical equipment but not for electrical appliances with voltage protection, such as precision instruments. Refer to the actual test to check whether a device is compatible with X-Boost.
Using Solar panels in Series and Parallel
1. The standard 400W solar panel supports up to 2 in series. 2. For non-standard solar panels with a wattage lower than 400W, the voltage and current can be used in series at 11-100V DC 10A. They can be connected in parallel or in series, but using solar panels with different wattages is not recommended.