Runhood Residential ESS & Portable Power Station Product User Manual

Version Management

1 Product Definition

1.1 Application scenarios

Application Scenario one: Used as an outdoor mobile energy storage power source. Supports input methods such as AC charging, photovoltaic charging, and vehicle charging. Supports DC output such as USB, DC12V10A, and AC output. Can be moved and stacked for use.

Application scenario two: Used as a balcony photovoltaic, supporting grid connection function.

Application scenario three: As a home energy storage battery pack, it can be matched with hybrid inverters for use.

1.2 System Block Diagram

The system comprises a 2400W bidirectional inverter, DC main control board, EMS, BMS, battery pack, communication interface board, and DC expansion interface board. The inverter handles DC-AC and AC-DC conversion. The DC main control board manages various DC inputs and outputs, including USB, DC12V10A, and AC output ports. The EMS (Energy Management System) and BMS (Battery Management System) oversee the battery pack's operation and safety. The system also includes ports for communication and expansion.

1.3 F2400

Composed of battery pack, inverter, DC interface, parallel interface, etc.

1.3.1 Product appearance

The F2400 features a robust design with a control panel displaying power status, battery level, and output information. It includes wheels for portability and a user-friendly interface.

1.3.2 Principle Block Diagram

The principle block diagram illustrates the interconnected components: Battery pack (LiFePO4, 50Ah), BMS for cell monitoring and balancing, MCU for control, inverter for power conversion, and various input/output ports (AC, DC, USB, Car Port). The diagram shows the flow of power and data between these components.

1.3.3 Specification parameters

1.3.4 basic function

1. LCD display screen

Displays the battery level and usage status of the product. The screen shows input and output power, voltage, frequency, remaining discharge/charge time, and various status icons.

Icon Explanations:

• [188] Current address: The current ID of the F2400 product.
• [S 88] Number of battery packs connected to the system: Indicates the number of battery packs connected for expansion.
• [88] Number of battery packs for normal system: Indicates the current number of parallel battery packs working properly.
• [BALC] Grid connected power generation prompt: Displayed when the grid connection switch is turned on.
• [OTA] OTA indication: Displayed during Over-The-Air updates.
• [PCS] External hybrid inverter indication: Prompts when the system is connected to an external hybrid inverter.
• [WIFI/BLUE] WIFI/BLUE indicate: Displayed when connecting to WIFI/Bluetooth.
• [USB AC DC Car] USB, AC, DC, Car indicate: Turn on the DC button to display USB, DC, and Car icons; Turn on the AC button to display the AC icon.
• [Red Warning] High temperature alarm: Indicates the battery temperature is too high. The system will not allow charging or discharging. Place the product in a ventilated area.
• [Blue Snowflake] Low temperature alarm: Indicates the battery temperature is too low. The system will not allow charging or discharging.
• [Red 888] Important faults: Indicates a serious malfunction. Check for static or magnetic interference and restart.
• [Fan Icon] Fan status: When the host temperature overheats, the fan turns on. If the fan icon appears but the fan is not working, check for blockages.

2. AC output switch (hold down to turn on or off) AC output indicator light

The AC power button controls the AC power output. Clicking the button enables AC power, and the indicator light turns on. The AC output and indicator light turn off during overload or when the battery level is 0%. Output resumes when the battery level is above 2%.

3. AC output socket

Supports powering devices like laptops, televisions, mini refrigerators, and vacuum cleaners. It can support 2400W appliances for power reduction, but compatibility should be tested.

4. LED lights

The LED lights use a flip type. Flip up to turn on the light. Light intensity can be adjusted via the app.

5. Main power button

Press and hold for 1.5 seconds to turn on (beep). Long press for 3 seconds to shut down (beep). Forcibly shut down by holding for 10 seconds (three beeps). The LCD display lights up when turned on. The screen dims after 2 minutes of idle time and the unit shuts down automatically after 5 minutes of idle time (configurable via APP).

6. PV or DC charging input port

Uses XT60EW-M specification. Can be charged via a dedicated connection cable, car charging port, or photovoltaic panel. Supports solar panel series parallel input, rated voltage range: 12-60Vdc, maximum supported voltage: 150V, current: 25A Max, power: 1200W Max.

7. DC output switch (vehicle charging output port, USB output) and DC output port indicator light

Press and hold the DC switch to turn DC power output on or off. The indicator light shows DC output status. This button controls DC output, USB-A, and USB-C outputs. Pressing the button clears DC side overload alarms.

8. WIFI, BLE restart, reset switch

WIFI and BLE are enabled by default. Short press to turn on/off modules. Long press for 3 seconds to reset modules.

9. Car charging output port

Supports a maximum current output of 10A for general on-board appliances.

10. USB-A output port

Charges devices like iPhones, tablets, GoPros, and speakers. Fast charging outputs 28W * 2, slow charging outputs 12W * 2.

11. Fast charging 100W USB-C output port

Charges devices like MacBook Pro and Android phones. Fast charging outputs 100W * 2.

12. Ventilation and heat dissipation holes

Prevent the F2400 from overheating.

13. Buzzer output

Provides audible alerts:

• Intermittent long beep (0.5s on, 2s off): Low battery warning (below 5%). Can be turned off by pressing the main power button.
• Low battery prompt: Insert charger to silence.
• System turn on: Single beep when main power button is pressed.
• System shutdown: Single beep when main power button is held for 3 seconds.
• Forced shutdown: Three beeps when main power button is held for 10 seconds.

14. Parallel interface

Used to connect to the dedicated parallel connection line for expanding battery capacity. PORT-1 connects to the front product, PORT-2 to the rear. The orange port (PORT-1) contains wires and communication lines. When used for home energy storage, it connects to the PCS battery port. During DC parallel operation, it connects to the lower connection port of the front F2400.

Schematic diagram of DC parallel connection port (PORT-1)

[Diagram showing PORT-1 with numbered pins and connections]

Description of the pins for the DC parallel connection port (PORT-1):

The black port (PORT-2) contains wires and communication lines, connecting to the upper connection port of F2400 or B2400.

Schematic diagram of DC parallel connection port (PORT-2)

[Diagram showing PORT-2 with numbered pins and connections]

Description of the pins for the DC parallel connection port (PORT-2):

15. Communication Interface

The RJ45 interface includes three ports: expansion communication port COM-1, debugging communication port COM-2, and dry junction communication port COM-3.

COM-1 is used for communication with home storage hybrid inverters, supporting CAN or RS485, and external EMS, electricity meters, or CTs.

COM-2 is for debugging by technical personnel, supporting CAN or RS485 for inverter data access.

COM-3 is for dry and wet contact signals.

RJ45-1 (COM1) Expansion communication port pin description:

RJ45-2 (COM2) Debug Port Pin Description:

RJ45-3 (COM3) Dry Node Port Pin Description:

16. DIP switch

The dial switch has 6 digits. Digits 1-5 are reserved switches, and digit 6 is the communication internal resistance 120 Ω access switch.

For multiple F2400 units connected to the grid, select one as the main device by setting its dial 1 to ON and 2-5 to OFF. Other units should have dials 1-5 set to OFF. The main device is automatically selected after startup based on dialing status.

To clear a malfunction (fault code 68), set dials 1-5 to ON, then all to OFF.

1.3.5 Grid connection function

1. EMS Energy Management

Modes include spontaneous self-use, timed, and disaster recovery. If SOC is below 10% (configurable via APP), the battery will not discharge and can only be charged.

(1) Spontaneous self use mode (default mode)

Suitable for areas with low electricity prices and high consumption. Prioritizes photovoltaic and battery energy, minimizing grid energy use.

• When the power grid is connected and PV is sufficient: PV supplies the AC load, then charges the battery, and remaining energy can be fed to the grid.
• When the power grid is connected and PV is insufficient: The battery supplies power to the load, and the grid supplements the insufficient power.

[Diagram showing PV, Battery, Load, and Grid connection with bidirectional meter]

(2) Timer mode

Set charging and discharging times via the manual APP. For example, charge during low electricity price periods (e.g., at night) at maximum power, and discharge during high electricity price periods to save costs.

(3) Disaster recovery mode

When the power grid is normal and battery SOC is not 90% (configurable), start charging (PV priority). Discharge when the power grid is abnormal.

2. F2400 communicates with smart sockets

For normal communication between F2400 and smart sockets, follow these steps:

• Bluetooth network configuration
• LAN device discovery
• LAN TCP communication

Attention: Wired RS485 communication is required with bidirectional meters or CT modules.

(1) Bluetooth network configuration

The APP sends WIFI information to F2400 and smart sockets via Bluetooth for configuration. The process uses BluFi provided by ESP32 for Wi-Fi configuration over Bluetooth.

[Diagram illustrating the Phone, ESP32, and F2400 interaction for Bluetooth network distribution]

• ESP32 acts as a GATT Server, sending advertising data.
• The phone connects to ESP32 as a GATT client.
• The phone sends data frames for key negotiation.
• ESP32 parses key negotiation data.
• Key negotiation uses encryption algorithms.
• Mobile end sends a control frame to set the security mode.
• ESP32 encrypts/decrypts data using a shared key.
• Phone sends Wi-Fi configuration data (SSID, password).
• Phone sends a Wi-Fi connection request.
• ESP32 confirms connection and sends a status report.

(2) LAN device discovery

Using UDP multicast, smart sockets send an address upon powering on. F2400 listens and replies via UDP unicast. WiFi devices can obtain F2400's IP address. The UDP multicast address and port are 232.10.11.12:3339.

[Diagram of LAN Device Discovery process: WiFi devices, UDP multicast, Waiting for listening, Connect to TCP Server, F2400, Waiting for listening, Get TCP Server IP, UDP unicast, Establishing a TCP link]

The WiFi device discovery process in a local area network is as follows:

• Triggered by power on; if no response, continue sending with a 1-second interval.
• After TCP Server disconnection, continue sending multicast messages.
• After receiving a correct reply and obtaining the TCP Server IP, end multicast message sending.

F2400 replies to multicast messages from WiFi devices in UDP unicast mode.

(3) LAN TCP communication

Within the local network, WiFi devices act as TCP clients, and F2400 acts as TCP servers for data transmission. WiFi devices report data every second, and the server responds. The fixed port number is 3333.

During TCP communication, a liveliness function determines client disconnection. If a client does not receive a reply within 5 seconds, the server is considered offline, and UDP multicast mode is entered.

2 Appendix

2.1 Disclaimer

The length of all external cables shall not exceed 3m.

2.2 FCC Caution

a. § 15.19 Labeling requirements.

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

b. § 15.21 Changes or modification warning.

Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

c. § 15.105 Information to the user.

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

RF warning for Mobile device:

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20cm between the radiator & your body.

FCC ID: 2BB59-F2400-US