CFE-2400 Residential ESS Lithium-ion Battery User Manual

CFE-2400 Residential ESS Lithium-ion Battery

Safety Instructions

Important Safety Instructions

• This manual contains important instructions for:
• CFE-Residential ESS Lithium-ion Battery product
• This manual must be followed when installing and using this product.
• The product is designed and tested by international safety requirements IEC 62619/IEC 62040/UL1973, but as with all electrical and electronic equipment, certain precautions must be observed about product installation and/or operation. To reduce the risk of personal injury and ensure safe installation and manipulation of the product, it is required to carefully read and follow all instructions, cautions, and warnings in this manual.

Warnings in this Document
A warning describes a possible hazard to equipment or personnel, which calls attention to a procedure or practice. Improper enforcement or compliance with warnings could result in damage or destruction of part or all of the equipment and/or other equipment connected to the equipment or personal injury.

For safety reasons, installers are responsible for familiarizing themselves with the contents of this manual and all warnings before performing installation.
If the battery is not used for more than 6 months from the production date, it shall be charged once. The failure caused by the overdue failure to perform the standard operation is not within the scope of a warranty.

Battery handling guide
Use the battery pack only as directed.

Response to emergencies
The CFE-Residential ESS Lithium-ion Battery is designed with multiple safety strategies to prevent hazards resulting from failures. However, Cannot guarantee their absolute safety in uncertain situations.

Leaking batteries
If the battery pack leaks electrolyte, direct contact with the leaking liquid or gas must be avoided. Contact with electrolyte may cause skin irritation and chemical burns due to its corrosiveness. If one is exposed to the leaked substance, the following actions should be taken:

• Inhalation: Evacuate the contaminated area, and seek medical attention immediately. Eyes contact: Rinse eyes with flowing water for 15 minutes and seek medical attention immediately.
• Skin contact: Wash the affected area thoroughly with soap and water, and seek medical attention immediately.
• Ingestion: Induce vomiting as soon as possible, and seek medical attention immediately.

Fire
In case of a fire, make sure that an ABC or carbon dioxide extinguisher is placed nearby, and do not extinguish the fire with water.

WARNING: The battery pack may catch fire when heated above 130°C.
If a fire breaks out where the battery is installed, please ta ke the following actions:

1. Extinguish the fire before the battery catches fire.
2. If the battery has caught fire, do not try to extinguish the fire, and evacuate people immediately.

Do not approach in case of any contact with poisonous gases once the battery catches fire.

Wet battery
If the battery is wet or submerged in water, do not try to access it. It’s proper to contact a customer careline or your distributor for technical assistance.

Damaged battery
If the battery is damaged, please contact customer careline or your distributor for appropriate countermeasures as soon as possible, because damaged batteries are dangerous and must be handled with extreme caution. Damaged batteries are not suitable for use and may pose a danger to people or property. If the battery seems to be damaged, it also should be returned to your distributor.

CAUTION: Given the high possibility of damaged batteries exporting electrolyte or flammable gas, the correct action is to contact your distributor for advice and information immediately. Such cases will be addressed within 48 hours.

Installers: CFE-Residential ESS Lithium-ion Battery is suggested to be installed by skilled workers or electricians. A skilled worker is defined as a person who has received professional training and qualified electrician or possesses all of the following skills and experience:

• Knowledge of the functional principles and operation of on-grid energy storage systems.
• Knowledge of the dangers and risks associated with installing and using electrical devices and acceptable mitigation methods.
• Knowledge of the installation of electrical devices.
• Knowledge of adherence to this manual and all safety precautions and optimal practices.

Scrap battery
For scrap batteries, please treat with local laws or regulations to recycle.

Customer careline
The contact information for technical assistance is given below. This phone number is available 24/7 and we will register your problems and provide reasonable solutions within 48 hours.

Product Introduction

Technical data

Temperature
Safety Certificate| CE & TUV(IEC 62619, IEC 62040)
Hanrzd Class of Dangerous Goods| 9
Transportation| UN3480

• Testing Conditions Based on Temperature 25℃ at The Beginning of Life.
• Total Energy/Usable Energy Measured Under Specific Conditions From 0.2C C

Indicator and ports

Indicator and ports
There are two LED indicators on the front of the battery to show its operating status.

Communication interface plat

SW2| Resistance for communication and DIP switch for parallel/series connection
---|---
SW3| Switch for battery’s address selection
SW4 & SW5| Communication for battery or master battery with inverter
Reset| Reset the WIFI configuration

How it works

Feature
CFE-Residential ESS Lithium-ion Battery is characterized with:

• Energy storage unit : This battery is suitable for PV solar system compatibility.
• Battery management system (BMS): The battery’s built-in BMS monitor prevents the battery from running outside its design limitations. See Troubleshooting in Chapter 8.
• Monitor: The battery’s BMS built-in WIFI module can help check the battery running information in the mobile phone.
• Expandability: The battery capacity can be increased by adding another battery of the same batch and specification. See Cable Connections in Section 5.4.

Guidance for batteries during shipment

1. Cartons that have been crushed, punctured, or torn in such a way that contents are revealed shall be set aside in an isolated area and inspected by a skilled person. If the package is deemed to be not shippable, relevant contents shall be promptly collected and segregated. Meanwhile, it is required to contact the consignor or consignee.
2. The DC circuit of Residential ESS has been disconnected before outgoing.
3. A precautionary label must be affixed to the shipping carton to alert individuals that the battery within the package has been disconnected; otherwise, the battery should not be transported.
4. We have conducted comprehensive tests of our equipment distributed around the world to ensure safety for shipping transport. These products shall be handled with care and immediately inspected if visibly damaged. It needs to contact with customer careline in case of any visible damage to cartons to confirm whether the battery could be used safely or not.

Installation Prerequisites

Installation location
Make sure that the installation location meets the following conditions:

• The building is designed to withstand earthquakes.
• Far away from the sea to avoid salt water and humidity.
• The floor is flat and level.
• No flammable or explosive materials nearby.
• The optimal ambient temperature is between 15℃and 30°C.
• Temperature and humidity stay at a constant level.
• Minimal dust and dirt in the area.
• No corrosive gases are present, including ammonia and acid vapor.
• The Residential ESS is rated at IP20, so the battery could be installed indoors.
• If the ambient temperature exceeds the operating range, the battery will protect itself by shutting down. The optimal operating temperature of the battery is 15°C to 30°C. Frequent exposure to severe operating conditions would exacerbate the performance and lifetime of the battery.

Installation process
The battery should be installed according to the following flow chart.

Installation materials
Following installation materials should be prepared by installers.

• Power cable
• Communication cable
• Earth wire
• Bipolar external isolators. When two or more battery systems are connected in parallel, each of them shall have a bipolar isolator.

NOTICE: Make sure that the cross-sectional area of charging cables is 25 to 35 mm2.
A breaker between the battery and inverter is recommended to install, and its min. current should be over 150A or comply with local regulations.

Tools
To install the battery pack, the following tools are probably required:

To protect the safety of operators and installers, it is necessary to select and employ suitable tools and measuring instruments that are certified for precision and accuracy.

Safety instruments
When dealing with the battery, the following safety gear should be equipped. Installers must meet relevant requirements of IEC 60364 or domestic legislation and other relevant international standards.

Communication cable

• If needed, the network cable should be made as shown in that diagram. But the network cable between the battery and the inverter should be produced following the definition of the inverter.
• If available, a LAN cable tester can be used to check whether the cable is faulty.

Storage
If the battery is not to be installed immediately, it should be removed from operation. It is secure and proper to be stored in an appropriate location if long-period storage is needed. Instructions for storage are:

• Do not stack more than 8 battery boxes.
• The temperature of the battery stored is recommended in the range of 0°C to 45°C.
• Do not expose to water

The ESS box should be upright and not stacked upside down when being stored.

• If the ESS needs to be stored over 3 months, the DC circuit of the battery is suggested to be disconnected. Otherwise, the battery would discharge at a minimum rate and capacity degrades with storage time. Generally, the battery self-consumption is less than
• 5w. And, if the battery is stored for over 6 months, it is suggested to connect the battery with an inverter for system commissioning.

Battery Installation

Package items: These items are included in the package.

Checks before installation
Check the battery voltage.

WARNING: If this checking process is executed for any reason after the battery is fully installed, make sure that the inverter is turned off or disconnected from the battery while checking the battery.

Press and hold the panel button for about 4s, release it after the two LED lights on, and then measure the voltage at the terminal interface with a voltmeter. If the voltage is lower than 44 V, do not use the battery and contact the customer careline or your distributor.

Installation of the battery

NOTICE: The symbol is located on the front of the battery. For parallel or series connections, the earth wire must be installed.

Apply silica gel or paint around the earth terminal after the earth cable is connected.

Connect with 51.2Vdc Inverter
To prevent the battery from moving, make sure the battery is properly installed.

NOTICE: If the battery is installed above the floor or on a platform, make sure that the wall or platform is capable of supporting the battery’s weight.

Wall mounting

NOTICE

Note: if more than 4 batteries are to be installed, a cabinet is recommended to be selected for battery stability.
The installed location shall be restricted access or installed in a cabinet that protects pets and children.

Ground installation
Meanwhile, a CFE-Residential ESS Lithium-ion Battery also be installed on the floor. The installation steps are as follows:

NOTICE

Address selection of Master and Slave Battery (Batteries) connection

For series connection, please make sure the SW2 DIP switch is selected as this type.

WARNING: Please make sure the SW2 DIP switch is selected correctly. If the battery is connected in parallel mode, and SW2 DIP8 is selected at ON position, it probably leads to serious faults, even dangerous. Meanwhile, if battery is connected in series mode, and SW2 DIP8 is selected at OFF status, serious faults and hazards probably occur.

Cable connections

WARNING: Before connecting the battery with the inverter, please make sure the inverter turns off.

Cable connection for Series connection
NOTICE:  The voltage difference of each battery should be less than 100mV.

Ground installation

Wall mounting

NOTICE: If the battery is connected in series mode, it’s more appropriate to be installed in grounding installation method, given that the power cable resistance difference between the stack and battery pack will adversely attenuate voltage balance.

Cable connection for Parallel connection

Ground installation

Wall mounting

Before two or more batteries are installed in parallel, please check the voltage of each battery and make sure the voltage difference is less than 2.0V.

Configuration

Configure deviceWIFI
The CFE Residential ESS is equipped with a built-in WIFI module for use with the Smart BESS APP.

Smart BESS App monitor instruction

Software Overview

Summary

• Smart BESS is a data information system designed for users to apply battery management. It possesses the functions of querying battery data, updating key network configuration, fault warning, etc.
• By uploading to the battery network through the battery management system, it can realize comprehensive management of the mobile phone query system to create a more comfortable battery management experience for users.

Function

• User registration: Users register the APP account to realize online queries and management of battery data under their names.
• Battery distribution network: Users can upload real-time battery data and operating status to the Internet through a one-key distribution of the battery.
• Battery addition: Add the battery distributed to the network to the user account (you need to log in to the user account in advance) to view the battery data in real-time.
• Data query: Support users to view the current, voltage, temperature and other operating data of the bound battery; support to view any 24-hour battery operation data in data records, as well as the battery operation status, and the off-grid status.
  Fault warranty: Support battery fault self-check, real-time recording of battery fault status and fault information, and data retention on battery faults..

Operating environment
APP supports running on Android 7.0 and IOS 8.0 and above mobile phones

Software Installation

1. installation on Android
   • Google mall installation

Open Google Play Store.

Search Smart BESS on Google Play Store.

Select to enter the Smart BESS application details page, click to download and install.

APK installation page

Scan the QR code of the APK installation package to download.

After the application download prompt pops up, choose to agree to download the Smart BESS installation package.

Manually install the downloaded Smart BESS installation package.

After waiting for the installation of the Smart BESS installation package to complete, you can open it for use.

IOS installation

Open IOS’s own application store.

Search for Smart BESS in the APP Store.

Enter the Smart BESS application details page, click GET to install.

Instructions

User registration
Open the Smart BESS APP and Click Register to continue.

Enter the Register page, input the user name, email, and six-digit string password, click T&Cs and Privacy policy, you can view the user agreement, agree to the agreement to confirm the check, and then click the Done button to complete the registration .

User Login
After successful registration, it will automatically return to the login page, enter the registered user name and password, and click Login to log in.

Homepage introduction
After the login is completed, you will enter the main function page of the APP, which are: WiFi Config、Add Battery、My Battery、and Warning & Services.

WIFI Configuration
Select WiFi Config to configure the battery network.

• Before operation, please pay attention to the WIFI connected with network communication, and turn on the battery at the same time;
• SSID refers to the name of the current mobile phone connected to the WiFi, which is obtained automatically;
• Password means the current WiFi password, which needs to be entered manually;
• Click NEXT, and connect to Battery WiFi of which AP SSID is ‘hiflying_softap’;
• Back to Smart BESS, the APP will automatically configure WiFi for the battery;
• Scan the QR code to watch WiFi configuration video instruction.

Add Battery
After the battery is connected to the network, select Add Battery to add the battery, click it to enter the automatic code scanning page, scan the bar code of the battery shell at this time, and a battery information dialog box will pop up after success. You can customize the battery name and connect the PCS name. Click Confirm to save the battery information, and add as many batteries as there are here.

Battery Management
After completing the distribution network and adding batteries, click My Battery to view the information of added batteries. The page of System overview displays comprehensive data of the current battery system:

• Voltage(V),
• Temperature(℃),
• Current(A),
• Charge(KWh),

Discharge(KWh), SOC. All currently added batteries are displayed in the Battery list. The information of Status, TEMP, Voltage, and Current is displayed in the single battery list, and Online/Offline shows the current battery status. Click Detail to view the detailed data of the single battery.

The battery overview details page displays the current battery cell data Voltage(V), Current(A), Temperature(℃), SOC, and the single cell voltage of the battery is displayed under Cell Voltage. Click Status display to view the single cell data curve.

The Status display page supports querying the 24-hour battery voltage, charge and discharge history records at any time point.

Fault Warning
After clicking on the Warning & Services page, the battery number, failure type, failure time, solution cycle and other information will be automatically displayed when the battery is faulty. For problems that cannot be solved, you can also contact the local supplier for corresponding solutions.

Other Functions
User password modification: Click Reset Password on the login page to enter the password reset interface, enter the current user name in the User Name column, and enter the battery ID bound by the current user for Battery ID or scan the code to enter the battery ID. After clicking Done, the password will be the default reset to 123456.

Settings for CAN /485 bus pins

• SW4 is used for CAN low signal by inverter (CANL/485B),
• SW5 is used for CAN high signal by inverter (CANH/485A).

As SW1 the CAN/485 DIP switch, installers should confirm which communication is suitable for the inverter.

NOTICE: The battery default protocol is CAN bus. If an inverter communication mode is RS485 or other protocol, please contact the customer care line before installing the battery.

Commissioning

Commissioning battery
If there is only one battery installed, the following steps are used to put it in operation:

1. Press and hold the panel button on the left side of the unit for about 4s, and release the panel button after the indicator lights on.
2. Make sure that the Run light is on. If it stays off, do not use the battery and contact your distributor.
3. Turn the inverter on, and wait for the start-up sequence to complete fully.

When there are two or more batteries connected with parallel mode, after the charging cable and the data cable are connected correctly, these steps are needed to put them in operation:

1. Check and ensure the battery voltage level is above 44V.
   If the battery voltage is under 44V, please contact your distributor after- service customer care line for help.

2. Press and hold the panel button for about 4s, and the indicator lights will turn on after four seconds.

3. Release the panel button.

For all batteries, make sure that the Run light is on.

• a. Make sure the maximum voltage difference between batteries is less than 2.0V.
• b. If not, the installer should balance the battery voltage and then connect the batteries in parallel.
• c. Set the DIP switches like part 6-3 Settings for CAN /485 bus pins.
• d. Turn the inverter on, and wait for the start-up sequence to complete fully.

Shutting down battery
Shut down the battery only when there is no charge or discharge current, which could be seen on your smartphone with APP.

1. Press and hold the panel button for about 8s, and release it after a disconnected voice of the relay comes out.
2. Make sure that every light on the battery is off.

Troubleshooting

1. If the information on the battery cannot be searched in the monitoring system, check the battery status first. If the battery status is OFF, please turn the battery on, and then check whether the WLAN is accessible for the battery.
2. If registering the battery fails, please check the network of mobile phones nearby to guarantee the battery installation site is available and stable.

Warranty

Warranty of Residential ESS

• This warranty specified below applies to RESS Lithium-ion batteries to consumers through authorized resellers. The accessories and tool kits provided are not included. In the event of a major failure of your unit, you will be entitled to obtain a replacement unit and your warranty will be transferred to the new unit. The units must only be utilized with controllers or equipment which is explicitly deemed compatible.
• To supply a high-quality service, you should make sure the unit remains connected to the Internet so that it can be remotely checked.

Purpose
The purpose of this warranty is to define the matters related to the warranty policy of products.

Warranty Condition

Warranty Period

• The product warranty period is ten(10) years from the date of the sale as mentioned in the Seller’s invoice to End Users (“Invoice Date”) or six(6) months from the date of manufacturing whichever comes first.
• This warranty period covers a capacity equivalent to one (1) full cycle per day. Full cycle: Discharge the nominal capacity of a fully charged battery and fully charge it afterward. Micro cycles sum up to full cycles according to the amount of energy charged and discharged. Note: Products are unavailable to protect themselves from deep discharge/charging in conditions of without a communication connection.
• The products without communication connection warranty period is 5(five) years (1 full cycle per day) from the date of the sale as mentioned in the Seller’s invoice to End Users (“Invoice Date”). Regarding self-discharging degradation, it is guaranteed for 180 days after ex-work.

Limitation of Warranty Scope

• Under this Warranty, We are responsible for either battery replacement or battery repair. The Period of Performance Guarantee will continue on any repaired unit. In the event of replacement units then the Period of Performance guarantee will transfer to the replacement unit.
• In no event will be liable for any consequential, incidental or punitive damages(including without limitation of loss of profit, harm to goodwill or business reputation, or delay damages) arising from or out or the Product or its installation, use, performance or non-performance, or any defect or breach of warranty, whether based on contract, warranty, negligence, strict liability, or any other theory. Our aggregate liabilities, if any, in damages or otherwise, shall not exceed the purchase price paid by the Original Buyer for the product.

Exclusions of Warranty
Damage or impairment to the product resulting from any of the following activities is NOT covered by this warranty:

• Installation or use with any devices not approved as compatible.
• Failure to install or use the battery in the way intended, or as demonstrated in the installation manual including incorrect installation of cables and connections.
• Failure caused by charger or inverter unit.
• Incorrect transportation, storage, installation or wiring by consumers or installers; if buyers fail to use the original packing materials provided by sellers during the transportation of equipment, any damage or failure of the product shall not fall under the warranty scope of the product.
• Mistreatment of the product including incorrect installation environment, incorrect temperatures or using the units other than in the specified manner.
• Damage caused by any impact, or physical trauma to the unit such as dropping or mishandling.
• Attempts to change the functionality of the unit in any way, exposure of the product influenced by movement or shaking following installation, or temperatures of more than 55°C or below -10°C.
• Using the battery outside of the clearly stated performance criteria for the unit.
• Water ingress, corrosive gas damage or installation in dirty environments causes particles to affect performance.
• Anyone other than those authorized may not modify, disassemble, repair or replace the product.
• The unit must carry identifiable and authentic serial numbers and labels.
• Products suffered any external influences including unusual physical force, and electrical stress (power failure surges, inrush current, lightning, flood, fire, accidental breakage, etc.).
• Extensive superficial damage to the case demonstrating impact or mishandling or poor protection of the battery.
• Product damage and defect caused by deliberate or willful acts.
• Product failure not reported to the seller or authorized service partner within 1 week of appearance.
• The product is not being operated for any period of 6 months or more.
• Unusual physical or electrical stress caused by force majeure, such as power failure surges, inrush current, lightning, flood, fire, accidental breakage, etc.;

PerformanceWarranty
Guarantees that Residential ESS Lithium-ion Battery will retain greater than or equal to 70% of output energy capacity for 10 years from the Invoice date and follow the specification as well as the user manual provided.
Capacity measurement conditions (referenced IEC: 62619)

• Ambient temperature: 25 ± 2℃
• 80%DoD
• Total energy/Usable energy measured under specific conditions from 0.2C CC/CV at DC side.

But, if you suspect our verification, the product must be tested by an EU- certified origination or a certified 3rd party testing company. Meanwhile, any 3rd party evaluation service fees shall be at your own expense, unless your claim is proven to be valid, in which case will be responsible for the testing costs.

Warranty Policy
If the product is not of acceptable quality upon arrival, the customer is entitled to request product repair or replacement.

About Service Products/Parts

• Service products or accessories could be used as new or refurbished condition and guarantee relevant performance is equal to or higher than the replaced device.
• If the product is no longer sold in the market, promises to replace it with different kinds of products with equal or higher functions and performances, or the residual annual depreciation value of the paid price by the buyer within the time limit for performance guarantee.

Claim Policy
Whether to repair or replace the product will be determined at its sole discretion. Claims under this warranty must be proposed from authorized distributors who purchased the product. Meanwhile, you must notify your distributor of a claim by:

• Give a call or email to your distributor;
• Contract with the hotline or email us directly within 48 hours of a faulty discovery.
• The following items must be included:
• The original purchase receipt or equal valid document;
• Description of the alleged defect(s) to your distributor after contacting the service hotline or sending an email;
• The product’s serial number and the initial installation date.

If the battery is suspected to be faulty, the unit should be returned to appointed distributors at the cost of customers at approved costs. If the unit is deemed faulty after inspection by designated experts, we will dispatch a REPLACEMENT or FIXED unit and credit the cost of returning the unit to us for testing (based on standard acceptable logistical costs).

Out Of Warranty
In the event, that the product is out of warranty, may (at its discretion) provide certain after-sales service to Original Buyer, but all related costs and expenses, such as parts, labor costs, and travel expenses, shall be borne by Original Buyer. To request such after-sales service, the Original Buyer must provide sufficient information about any defects, to enable the authorized service partner to determine whether such defects are capable of being repaired.

RED Declaration of Conformity (DoC)
We,
Manufacturer’s name: CF ENERGY CO.， LTD.
Manufacturer’s address: Workshop No.18, Demonstration Base of Traditional Industry Transformation, High-tech Zone, Qindu District, Xianyang City, Shaanxi Province, PEOPLE’S REPUBLIC OF CHINA

declare under our sole responsibility that the product:

• Product name: Lithium-ion battery
• Type or model: CFE-2400 to which this declaration relates conforms with the essential requirements and other relevant requirements of the RED Directive (2014/53/EU).

The product conforms with the following standards and/or other normative documents:
HEALTH & SAFETY (Art. 3(1)(a)): IEC 62040-1:2017, IEC 62619:2017, EN 62311:2008; EN 50665:2017

• EMC (Art. 3(1)(b)): EN IEC 61000-6-1:2019, EN 61000-6-3:2007/A1:2011, EN 301 489-1 V2.2.3:2019, Draft EN 301 489-17 V3.2.2:2019
• SPECTRUM (Art. 3(2)): EN 300 328 V2.2.2:2019
• Technical file held by: CF ENERGY CO.， LTD.
• Place of issue: Xianyang PRC
• Date of issue: December 14, 2021

First-class power battery system supplier
First-class supplier of energy storage and microgrid

CF Energy Co., Ltd.

Company Address: Intelligent Manufacturing Base , Xianyang, Shaanxi, PRC.

• Tel: (+86) 134 38085 4482
• Web : www.cfess.cn
• E-mail: eva.lin@cfess.cn

References

• CF Energy

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