Below you can browse through the list of our most frequently asked questions regarding portable battery generators. If you can not find an answer please feel free to get in touch using the details on our contact page.
Can I connect DELTA together?
Theoretically speaking, you can connect as many DELTAs in serial (but not in parallel) as you want. However, the efficiency of the machines will be seriously compromised (The energy consumption of the inverters grows with the number of the connected machines). As a result, we do not recommend to connect more than 3 DELTAs in serial, and it is necessary to fully charge every DELTA before you connect them together. Moreover, connecting DELTA in serial will not increase the rated output, but will expand the capacity.
Can I charge my DELTA through the DC and AC port at the same time?
If so, does DELTA prioritize taking in electricity through the DC (solar) port?
When DELTA is charged through the AC and DC port at the same time, it will prioritize taking in power through the AC port. After you plucked out the AC cable, DELTA will start taking in electricity through the DC port.
Can I use DELTA to charge my devices while it is charged through the car port?
DELTA can be recharged through your car port and power your devices simultaneously.
What is the charging time when DELTA is charged by an AC cable?
DELTA can be recharged to 0%~80% in 1 hour, and be fully recharged in 1 hour 40 minutes.
What is the charging time when DELTA is charged by a car port cable?
DELTA can be fully charged through a 13.6V car port in 10-12 hours.
What is the charging time when DELTA is charged by 110W EcoFlow Solar Panels?
At perfect sunlight:
a. 1x 110W solar panel: 15h-30h b. 2x 110W solar panel (in series): 7.5h-15h c. 3x 110W solar panel (in series): 5h-10h d. 4x 110W solar panel (in parallel): <4h
DELTA supports solar input ranges from 10V to 65V with a maximum allowed current of 10A and maximum input of 400W.
What is the Noise level of DELTA?
In the Noise Test Chamber
1. Noise Tester: TES-1357 2. Ambient noise: 33.8dB 3. Test outcome: the average outcome from the front, back, right, and left
Condition 1: AC outlet: <500W; the fan: 10% full speed, <40DB, 2-meter distance;
Condition 2: AC outlet: 500W-1200W; the fan: 30% full speed, <45DB, 2-meter distance; Condition 3: AC outlet: >1200W; the fan: 100% full speed, <50DB, 2-meter distance
What is the recommended temperature range for use of DELTA?
Discharge Temperature Range: -4-113°F (-20-45°C)
Recharge Temperature Range: 32-113°F (0-45°C)
When the ambient temperature is above 113F or below -4F, the high temperature or low temperature warning icon on DELTA's screen will light up and flash correspondingly. At the same time the battery management system (BMS) will regulate the input and output of power to protect DELTA.
If you want to charge your DELTA in low temperature environment (between -20°C – 0°C) please use your DELTA to power an electronic with a voltage over 500W for over 10 minutes to warm up DELTA before charging it.
What is DELTA’s lifespan?
After 800 Cycles of use, DELTA's capacity will drop to 60%. However, the number of cycles in this case refers to deep discharge, or full discharge from 100%. In many cases your use will only result in a shallow discharge, so the Delta's life, at full efficiency, could be significantly more than 800 uses.
How should I store and maintain DELTA?
Please keep your DELTA connected to a power source (solar panel or wall socket) to help prolong the battery life and ensure your DELTA is charged and ready for use anytime. If you cannot keep your DELTA connected to a power source during storage, please fully charge and discharge the battery at least once every 3 months to maintain the battery health. Also store your DELTA in a cool, dry place.
Can I use third-party solar panels or accessories?
EcoFlow's warranty does not cover any damage cause by third-party solar panels or accessories.
What's the maximum number of solar panels I can connect with my DELTA?
DELTA can be charged by EcoFlow solar panels when the open-circuit voltage is between 10V and 65V. You can connect up to 3 EcoFlow solar panels in series. You can also connect 2 sets of 3 solar panels connected in series in parallel (up to 6 panels). The parallel connection cable is an optional accessory that needs to be purchased separately.
Can I use DELTA for my off-grid house?
Yes, you can! If your house is not off-grid, please cut off the connection between power grid and your house before powering your house using DELTA.
Can I jumpstart a car using DELTA?
You cannot use DELTA to jumpstart your car, because the current needed for jumpstarting a car is higher than 20An (DELTA's car port can only allow a maximum current of 8An).
DELTA can charge the lead batteries of your car through the car charge cable included in your DELTA parcel.
Which type of cables can be used to connect solar panels to DELTA?
You can use MC4-XT60 cable to recharge your DELTA. This type of cable come with the box.
How long does it take for DELTA to charge my Tesla?
DELTA can charge Tesla around 40 minutes. After charging by DELTA you can drive your Tesla for 3-5miles. However, the mileage that can be lasted after one charge by DELTA varies, it is depends on the types of EVs you are driving and the ambient temperatures.
Do the AC ports support pure sine wave or modified sine?
DELTA's AC ports support pure sine wave. As a result, when you plug your electronics in DELTA, they are well-protected with less generated electrical noise and longer-lasting motors.
Can DELTA be used inline as an UPS for uninterrupted power?
DELTA supports an entry-level UPS function. But please perform multiple tests to confirm compatibility before connecting such devices as data servers and workstations with DELTA. EcoFlow will not be responsible for any loss of data or equipment damage caused by customers’ failure in following the instructions.
What is EcoFlow Solar Panel’s waterproof level?
The solar panels are IP67 rated so they can still function in the rain but the performances of the panels depend on how much sunlight is available. You can rest the solar panels on the car roof, the boat roof and the roof of your house for efficient and convenient solar power (You can purchase EcoFlow's suction cups separately to help attach the panels to flat surfaces).
Is DELTA equipped with a MPPT controller?
DELTA is equipped with the EcoFlow patented fast-tracking MPPT controller, which is supported by EcoFlow's unique tracking algorithm. This algorithm helps maximize the solar input under any weather condition. DELTA supports any solar input ranges from 10V to 65V with a maximum allowed current of 10A and a maximum input of 400W. You can chain your solar panels in series or in parallel to maximize the solar input.
How to connect the APP with RIVER/ RIVER Max/ RIVER Pro?
Using Wi-Fi: a. Long press the IOT Reset button on RIVER until you hear a “beep” sound. b. Find the device in the Wi-Fi setting on your phone. Click the device to connect. c. Go back to the EcoFlow App. Click the + on the top right to start connection. d. Tick the “operation confirmed” and proceed to the next step. e. Choose the Wi-Fi and enter the password to proceed. f. Wait until the connection is finished.
How to connect the APP with RIVER/ RIVER Max/ RIVER Pro when off-grid?
Using Hotspot: a. Long press the IOT Reset button on RIVER until you hear a “beep” sound. b. Find the device in the Wi-Fi setting on your phone. Click the device to connect. c. Wait until the connection is finished.
How to add a second or more RIVER/ RIVER Max/ RIVER Pro?
Please refer to FAQ 1
How to upgrade firmware?
The firmware can be upgraded using the EcoFlow App. a. Make sure the RIVER is plugged in to AC or has at least 50% power and System Power is ON. b. Disconnect all other input or Outputs from the RIVER. c.Make sure the 2.4 GHz WiFi router signal is strong. d.On the System Settings page, tap "Update" button e.Four packages will be downloaded and installed. While this happens the icons on the LCD display may flash which is normal. f.Close and reopen EcoFlow App and verify the new Version number appears on the Device System page.
Where can I find out the firmware version?
Find your devices on the “Devices” Page, go to the “System” button, then you will find the firmware version by clicking “Version” on the system page.
How to control RIVER/ RIVER Max/ RIVER Pro remotely?
a.Make sure your phone is connected to the device you need to use.
b.Make sure that your device is on.
c.Make sure the Wi-Fi your device is connected to is on.
d.Find your device in the APP then explore the functions you would like to accomplish remotely through the APP
How to reconnect when it’s moved to a different Wi-Fi network?
When moving to a different Wi-Fi network, please repeat the steps listed in FAQ 1.
How to report issues or submit feedback using APP?
Open the APP, find "Help & Feedback" under the user page, and click "Feedback"
How to turn the X-boost function on?
Click "AC" on the device page of the APP, and you could turn on the "X-Boost" function after entering the page.
*In order to save power, it is recommended to turn off the X-boost function when you don’t need to use it.
*X-boost technology's built-in advanced algorithms lower the required output of the heavy-duty devices. That means a smart 600W inverter can run devices with up to 1200W per draw.
*X-Boost mode is NOT suitable for ALL appliances. Some 600W-1200W appliances with strict voltage requirements may not function (eg. air compressor). Please test to confirm before using the device. X-Boost mode is enabled by default. You can disable it on the APP.
How to X-link two machines?
a.Turn on the parallel function
b.Find the AC parallel port on the right end of the device, and use the parallel cable to connect the two devices together. Connect the red wire to the red socket, and the black wire to the black socket;
c.Short press the switch key of the first device to turn on the machine;
d.Press and hold the AC switch on the right side of the first device for more than three seconds until the parallel icon on the lower left corner of the LCD screen starts to flash, which means that the device is waiting for parallel. Please connect the second device within 1 minute after the icon flashes;
e.Repeat this operation on the second device to enable the parallel function of the device;
f.After the parallel operation is successful, the parallel icon on the LCD screen will become steady on;
g.Turn off the parallel function
h.When the parallel operation is over, press and hold the AC switches of the two devices for more than 3 seconds until the parallel icon disappears;
i.Remove the parallel cable when done;
*When the second device is not connected within 1 minute after the parallel function is turned on, the AC output will automatically turn off
Is there a problem with the icon flashing during the upgrade process?
No. The flashing icon only indicates that the component is being upgraded.
Why does the ambient light sometimes go out automatically?
When the screen is off, the light will automatically go off instantly; if you need to use the ambient light continuously, please make sure that your screen standby time has been set to "Never" or select the ambient light to the "Night light" mode.
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