EcoFlow Delta 2 取扱説明書

EcoFlow DELTA 2 User Manual

EcoFlow DELTA 2

（Hereinafter referred to as DELTA 2）

Read all safety tips, warning messages, terms of use, and disclaimers carefully. Refer to the

terms of use and disclaimer at https://ecoflow.com/pages/terms-of-use and stickers on

the product before use. Users take full responsibility for all usage and operations. Familiarize

yourself with the related regulations in your area. You are solely responsible for being aware

of all relevant regulations and using EcoFlow products in a way that is compliant.

DISCLAIMER

4. FAQs

5. Troubleshooting

6. What’s In the Box

7. Storage & Maintenance

8. Fcc Statement

3.1 Product Details

3.2 LCD Screen

3.3 General Product Usage

3.4 AC Charging

3.5 Solar Charging

3.6 Car Charging

3.7 Using Smart Extra Battery

3.8 EcoFlow APP

3.9 X-Boost

3.10 Emergency Power Supply (EPS)

CONTENTS

1

5

7

9

10

11

12

13

14

15

2. Safety Instructions

1. Specifications

3. Getting Started

3

4

2.1 Usage

2.2 Disposal Guide

1

1. Specifications

Input Ports

AC Charging

AC Input Voltage

Solar Charging

Car Charging

X-Stream Fast Charge 1200W max, 10A

100-120V~ 50/60Hz

11-60V 15A Max, 500W Max

Supports 12V/24V Battery, Default 8A

Max Device(s) Power Supported by

X-Boost

USB-A (x2)

USB-A Fast Charge (x2)

USB-C (x2)

Car Charger

DC5521 Output (x2)

5V 2.4A, 12W Max per port, total 24W

5V 2.4A 9V 2A 12V 1.5A, 18W Max per port, total 36W

5/9/12/15/20V 5A, 100W Max per port, total 200W

12.6V 10A, 126W Max

12.6V 3A, 38W Max per port

General Info

Output Ports

Net Weight

Dimensions

Capacity

Wi-Fi

Bluetooth

Approximately 12kg (27lbs)

400x211x281mm (15.7x8.3x11.1in)

1024Wh, 51.2V

Supported

Battery Info

Cell Chemistry

Cycle Life

LFP

3000 cycles to 80%+ capacity

* A car charger shares power with the DC5521 output port, offering a maximum output of 126W.

AC (x6) Pure Sine Wave, 1800W total (surge 2700W),

120V~ (50/60Hz)

2200W

Protection

Over Voltage Protection, Overload Protection,

Over Temperature Protection, Short Circuit

Protection, Low Temperature Protection, Low

Voltage Protection, Overcurrent Protection

2

Environmental Operating Temperature

Optimal Operating Temperature

Discharge Temperature

Charge Temperature

Storage Temperature

20°C ~ 30°C (68°F ~ 86°F)

-10°C ~ 45°C (14°F ~ 113°F)

0°C ~ 45°C (32°F ~ 113°F)

-10°C ~ 45°C (14°F ~ 113°F)

(optimal: 20°C ~ 30°C (68°F ~ 86°F))

* Whether the product can be charged or discharged depends on the actual temperature of the battery pack.

Add-ons

Supported (sold separately)

Smart Extra Battery

Smart Generator

3

2. Safety Instructions

1. Do not use the product near a heat source, such as a fire source or a heating furnace.

2. Avoid contact with any liquid. Do not immerse the product in water or get it wet. Do not use the

product in rain or humid environments.

3. Do not use the product in an environment with strong static electricity/magnetic fields.

4. Do not disassemble the product in any way or pierce the product with sharp objects.

5. Avoid using wires or other metal objects that may result in a short circuit.

6. Do not use unofficial components or accessories. If you need to replace any components or

accessories, please visit official EcoFlow channels to check relevant information.

7. When using the product, please strictly follow the operating environment temperature specified in

this user manual. If the temperature is too high, it may result in a fire or explosion; if the temperature

is too low, the product performance may be severely reduced, or the product may cease to work.

8. Do not stack any heavy objects on the product.

9. Do not lock the fan forcibly during use or place the product in an unventilated or dusty area.

10. Please avoid impact, falls, or severe vibrations when using the product. In case of a severe external

impact, turn off the power supply immediately and stop using the product. Ensure the product is

well fastened during transportation to avoid vibrations and impacts.

11. If you accidentally drop the product into water during use, please place it in a safe open area, and

stay away from it until it is completely dry. The dried product should not be used again, and should

be properly disposed of according to Section 2.2 below. If the product catches fire, we recommend

that you use the fire extinguishers in the following order: water or water mist, sand, fire blanket, dry

powder, and finally a carbon dioxide fire extinguisher.

12. Use a dry cloth to clean off dirt on the product ports.

13. Rest the product on a flat surface to avoid damages caused by the product falling over. If the

product is overturned and severely damaged, turn it off immediately, place the battery in an open

area, keep it away from combustible matter and people, and dispose of it in accordance with local

laws and regulations.

14. Ensure that the product is kept out of reach of children and pets.

15. Store the product in a dry and ventilated place.

16. It is recommended to use moisture barrier bags in wet environments (for example, places by the

sea or waterways) to prevent the product from getting soaked. If water is found inside the product,

it must not be used or turned on again. Please take anti-eletric shock measures before touching

the product. Following this, place the product in a safe, waterproof and open area. Once complete

contact EcoFlow Customer Service immediately.

2.1 Usage

4

2.2 Disposal Guide

1. If conditions permit, make sure that the battery is fully discharged before disposing it in a designated

battery recycling bin. The product contains batteries with potentially dangerous chemicals, so it is

strictly prohibited to dispose of it in ordinary trash cans. For more details, please follow the local laws

and regulations on battery recycling and disposal.

2. If the battery cannot be fully discharged due to a product failure, please do not dispose of the

battery directly in the battery recycling box. In such case, you should contact a professional battery

recycling company for further processing.

3. Please dispose of over-discharged batteries that cannot be recharged.

17. This product is not recommended for powering medical emergency equipment related to

personal safety, including but not limited to medical grade ventilators (hospital version CPAP:

Continuous Positive Airway Pressure), artificial lungs (ECMO, Extracorporeal Membrane Please

follow your doctor's instructions and consult with the manufacturer for restrictions on the use of

the equipment. If used for general medical equipment, please be sure to monitor the power status

to ensure that the power does not run out.

18. When in use, power supply products will generate electromagnetic fields, which are likely to affect

the normal operation of medical implants or personal medical equipment such as pacemakers,

cochlear implants, hearing aids, defibrillators etc. If these types of medical equipment are being

used, please contact the manufacturer to inquire about any restrictions on the use of such

equipment. These measure are fundamental to ensure a safe distance between the medical implants

(for example, pacemakers, cochlear implants, hearing aids, defibrillators etc.) and this product while

in use.

19. When the power supply is connected in normal mode to a refrigerator, power fluctuations may

cause the power supply to automatically shut down. When connecting the power supply to a

refrigerator that stores medicine, vaccines or other valuable items, it is recommended to set the AC

output to "Always on" in the app. This helps support a continuous power supply and ensures a safe

and efficent power consumption state.

5

Bluetooth Connection

Indicator

LCD Screen

Solar/Car Charging

Input Port

AC Output Sockets

AC Power Button

Car Outlet

DC5521 Output Port

USB-A Output Port USB-A Fast Charge Output

Port

X-Stream AC Charging

Input Port

USB-C Output Port

USB Power Button

Overload Protection

Switch

12V DC Power Button

Main Power Button

3.1 Product Details

3. Getting Started

6

Extra Battery Port

Ventilation Fan

Solar/Car Charging

Input Port

X-Stream AC Charging Input Port

Overload Protection

Switch

7

3.2 LCD Screen

3.3 General Product Usage

Short Press to Turn On Long Press to Turn Off

Remaining Charge/

Discharge Time

Overload Warning

Fan Indicator

Low Temperature Warning

High Temperature Warning

Remaining Battery Percentage

Battery Failure Warning

Battery Level Indicator

Extra Battery Indicator

AC Output Wi-Fi Status

12V DC Output Indicator

State of Charge

USB-A Output

USB-C Output

Output Power

Input Power

Battery Level Indicator: The indicator will repeatedly fill while charging. If product is at 0% charge, the

indicator will flash to warn you.

WI-FI Status: The devices that support Bluetooth connection will be connected to the App directly or

to the Internet after the the network connection process is completed.If it is successfully connected to

the Internet, the icon will stay on.

* See Section 5 for more troubleshooting steps.

Short press the Main Power Button to turn on the product; the LCD Screen will light up and the

battery level indicator icon will display.

Product On, Product Off, LCD Screen On

The product enters sleep mode after 5 minutes of idle operation; the LCD Screen will automatically

turn off. When the product senses any load change or operations, the LCD Screen will automatically

light up. To turn the LCD Screen on or off, please short press the Main Power Button.

To power off the product, press and hold the Main Power Button.

The default product standby time is 2 hours. With other Power Buttons turned off and no other load

access for 2 hours, the product will automatically shut down. The standby time can be set on the App.

8

With the Main Power Button turned on, short press the

USB Power Button to use the USB Output Port. Short

press the USB Power Button again to turn it off.

With the USB Power Button on, the product will not

automatically shut down.

With the Main Power Button turned on, short press the

12V DC Power Button to use the 12V DC Output port.

Short press the 12V DC Power Button again to turn it off.

With the 12V DC Power Button on, the product will not

automatically shut down.

USB Output Port

12V DC Output Port

With the Main Power Button turned on, short press the

AC Power Button to use the AC Output ports. Short press

the AC Power Button again to turn it off.

The default standby time of the AC Output port is 12 hours.

Without any load access for 12 hours, the AC Power will

automatically turn off.

Please turn off AC power button when not in use to save

power consumption.

AC Output Port

Short Press

12V DC Power Button

Short Press

AC Power Button

Short Press

USB Power Button

9

≈1.2 hrs Full

Charge

3.4 AC Charging

AC Charging

Cable

EcoFlow’s X-Stream fast charge technology is specifically designed for AC charging. The AC

charging speed can be adjusted via the EcoFlow app. In case of unusual situations where the

AC input current remains higher than 20A, the X-Stream charging input port will initiate a self-

protection function, and the Overload Protection Switch on the product will automatically pop up.

After confirming that there is no product failure, you can press the Overload Protection Switch to

resume charging.

Users can connect solar panels in series as shown in the figure to recharge the product.

MC4

When using an EcoFlow solar panel to charge the product, please follow the instructions that come

with the solar panel.

Before connecting the solar panel, please ensure that the solar panel’s output voltage is within 60V

to avoid product damages.

3.5 Solar Charging

Solar Charging Cable

*Solar charging cable (MC4-XT60 adapter cable) is supplied separately.

10

3.6 Car Charging

Car Charging Cable

Please charge using the car charger after you’ve started the car to avoid failure to start due to

insufficient car battery. In addition, please make sure that Car Charging Input Port and the Car

Charging Cable are in good condition. EcoFlow takes no responsibilities for any losses or damages

caused by failures to follow instructions.

The product can be connected with a Smart Extra Battery to meet higher capacity needs. Please

refer to the user manuals of DELTA 2 Smart Extra Battery and Smart Generator for detailed

instructions.

Extra Battery, please follow the instructions below:

1. Before connecting the product to a Smart Extra Battery, please

make sure that both the product and the Smart Extra Battery are

turned off.

2. After connecting the product to a Smart Extra Battery, please

make sure that both of their LCD screens display an extra battery

icon before using it.

3. Do not directly connect or remove the Smart Extra Battery

during charging and discharging processes. If you need to

connect or remove it midway, please turn off the product first.

4. Do not touch the metal terminals of the Smart Extra Battery

connector with your hands or other objects. If foreign objects

adhere to the metal terminals, please gently wipe them with a dry

cloth.

3.7 Using Smart Extra Battery

11

To avoid operation failure due to overload protection, the X-Boost feature will be automatically

enabled when the total output exceeds the rated output power, which enables the product to

power high wattage appliances at the rated output power.

X-Boost Tips:

1. X-Boost is enabled by default; you can enable or disable it in the EcoFlow App.

2. X-Boost is not available when the AC output is turned on in a recharging state (in bypass mode)

and when X-Boost is disabled.

3. X-Boost is not applicable for all electrical appliances; it’s incompatible with appliances with strict

voltage requirements. Appliances with voltage protection (such as precise instruments) are not

supported. X-Boost mode is more suitable for heating devices. Please conduct your own tests with

your devices with X-Boost enabled.

3.8 EcoFlow APP

3.9 X-Boost

The product supports EPS. When you connect the grid power to the AC Input Port of the product

through an AC Charging cable, you can power electrical devices through the AC Output Sockets (AC

power will come from the grid and not the power station in this situation). In case of a sudden blackout,

the product can automatically switch to the battery powered supply mode within 30ms. As a basic

UPS function, this function does not support 0ms switching. Please do not connect the product to

any device that requires 0ms UPS, such as data servers and workstations. Please test and confirm

the compatibility before using the product. We recommend that you only charge one device at a

time and avoid using multiple ones at the same time to avoid overload protection. EcoFlow takes no

responsibilities for any device failures or data losses caused by failures to follow instructions.

3.10 Emergency Power Supply (EPS)

Control, monitor and customize your portable power station from afar with the

EcoFlow App. Download at: https://download.ecoflow.com/app

Privacy Policy

By using EcoFlow Products, Applications and Services, you consent to the

EcoFlow Term of Use and Privacy Policy, which you can access via the “About”

section of the “User” page on the EcoFlow App or on the official EcoFlow

website at https://www.ecoflow.com/policy/terms-of-use and https://www.

ecoflow.com/policy/privacy-policy

EcoFlow app

12

1. What battery does the product use?

It uses high-quality LFP battery.

2. What devices can the product’s AC output port power?

With high rated power and peak power, the product’s AC output port can power most household

appliances. Before you use it, we recommend that you confirm the power of the appliances first

and ensure the power sum of all loaded appliances is lower than the rated power.

3. How long can the product charge my devices?

The charging time is shown on the product’s LCD Screen, which can be used to estimate the

charging time of most appliances with stable power usage.

4. How can I know if the product is charging?

When it’s charging, the remaining charging time will be shown on the LCD Screen. Meanwhile, the

charging indicator icon begins to rotate with the remaining battery percentage and the input

power shown on the right of the circle.

5. How to clean the product?

Please gently wipe it with a dry, soft, clean cloth or paper towel.

6. How to store the product?

Before storing, please turn off the product first, and then store it in a dry, ventilated place at room

temperature. Do not place it near water sources. For long-term storage, please discharge the

battery to 30% and recharge it to 60% every three months to extend its battery life.

7. Can I bring the product on a plane?

No.

4. FAQS

13

5. Troubleshooting

If the Alarm Prompt shows on the product LCD screen during use and does not disappear after a

restart, please stop using it immediately (do not try to charge or discharge).

If you require any other assitance, please contact EcoFlow Customer Service.

Indicator Problem

Resume normal operation by

removing the electrical device

connected to the USB-A port.

Resume normal operation by

removing the electrical device

connected to the USB-C port.

Charging can be resumed

automatically after the battery cools

down.

The power supply can be resumed

automatically after the battery cools

down.

Charging can be resumed

automatically after battery

temperature rises above 41°F(5℃).

The power supply can be resumed

automatically after the battery

temperature rises above 10°F(-12℃).

Please confirm whether the fan inlet

and outlet are blocked, if not, normal

operation will be resumed automatically

after the product temperature drops.

Normal operation will be resumed

automatically after the product is

used at optimum environmental

temperatures.

Please check if the fan is blocked by

foreign materials.

After the product cools down,

it will resume normal operation

automatically.

Contact EcoFlow Customer Service

Normal operation will be resumed

automatically after you remove the

overloaded device and restart the

product.

Electrical appliances should be used

within rated power.

(Refer to X-Boost instructions to get

more details about power limitations).

Solution

The product will resume normal

operation automatically after you

remove the device connected to the car

charger.

USB-A Overload

Protection

Icons Flash

together

Icons Flash

together

Icons Flash

together

Icons Flash

together

Icons Flash

together

Icons Flash

together

Icons Flash

together

Icons Flash

together

Icons Flash

together

Icons Flash

together

Icons Flash

together

Icon Stays On

USB-C Overload

Protection

High Temperature

Charge Protection

High Temperature

Discharge Protection

Low Temperature

Charge Protection

Low Temperature

Discharge Protection

AC Output

Overload Protection

AC High

Temperature Protection

AC Low

Temperature Protection

Fan Blockage

Car Charger

Overload Protection

Car Charger High

Temperature Protection

Battery Failure

Icon Flashes

14

6. What’s In the Box

DELTA 2 DC5521 to DC5525 CableCar Charging CableAC Charging Cable

User Manual &

Warranty Card

1. Ideally, use and store the product between 20°C ~ 30°C (68°F ~ 86°F), and always keep it away

from water, intense heat, and sharp objects. Do not store in temperatures above 45°C (113°F) or

below -10°C (14°F) for an extended period.

2. Storing a battery with a low charge for a long period shortens its lifespan. DELTA 2 mitigates the

damage by putting the battery into hibernation mode. To get the most out of the battery, make

sure it is about 60% before putting DELTA 2 into long-term storage, and then once every three

months, discharge the battery to 30% and recharge it back to 60%.

7. Storage & Maintenance

15

This device complies with Part 15 of the FCC Rules. Operation is subject to the following

two conditions:

(1) This device may not cause harmful interference, and

(2) This device must accept any interference received, including interference that may cause

undesired operation.

FCC Radiation Exposure Statement:

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled

environment. This equipment should be installed and operated with minimum distance 20cm

between the radiator & your body.

Warning: Changes or modifications not expressly approved by the party responsible for compliance

could void the user's authority to operate the equipment.

NOTE: This equipment has been tested and found to comply with the limits for a Class A digital

device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable

protection against harmful interference when the equipment is operated in a commercial

environment. This equipment generates, uses, and can radiate radio frequency energy and, if not

installed and used in accordance with the instruction manual, may cause harmful interference to

radio communications. Operation of this equipment in a residential area is likely to cause harmful

interference in which case the user will be required to correct the interference at his own expense.

8. Fcc Statement

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