EPOCH BATTERIES DP12120H Lithium Iron Phosphate Battery User Manual

EPOCH BATTERIES DP12120H Lithium Iron Phosphate Battery

Product Information

Specifications

• Product Name: DP12120H
• Manufacturer: Epoch Batteries
• Battery Type: Lithium Iron Phosphate
• Smart Monitoring: Yes
• Manufacturer Address: 164 Andrew Drive, Stockbridge GA 30281
• Email: support@epochbatteries.com
• Website: https://www.epochbatteries.com/

Product Usage Instructions

Safety
Please read this manual carefully before installation, operation, and maintenance, and pay attention to various warning signs and statements on the equipment. After reading this manual, please keep it properly for future reference.

Statement
Please read this manual carefully before installation, operation, and maintenance, and pay attention to various warning signs and statements on the equipment. After reading this manual, please keep it properly for future reference.

Specification
The specifications for the DP12120H battery are as follows:

• Battery Type: Lithium Iron Phosphate
• Smart Monitoring: Yes

Critical Safety Information
It is important to follow these critical safety guidelines:

• Only use the battery as instructed in the manual.
• Do not disassemble or modify the battery.
• Keep the battery away from heat sources.
• Do not expose the battery to water or other liquids.
• Keep the battery out of reach of children.

Battery Maintaining
To maintain the battery, follow these guidelines:

• Regularly check the battery for any signs of damage or wear.
• Clean the battery terminals if necessary.
• Store the battery in a cool and dry place when not in use.
• Avoid overcharging or discharging the battery.

Waste Disposal
When disposing of the battery, follow proper waste disposal guidelines. Do not dispose of the battery in regular household waste.

Installation

Tools and Equipment
Before installation, ensure you have the following tools and equipment:

• [List of tools and equipment]

Battery Placement
To install the battery, follow these steps:

1. [Step 1]
2. [Step 2]
3. [Step 3]

Battery Supporting Materials
If necessary, use appropriate supporting materials to secure the battery in place.

Introduction to Epoch DP Series Batteries

Main Features
The main features of Epoch DP series batteries are:

• [Feature 1]
• [Feature 2]
• [Feature 3]

Product Appearance
The product has the following appearance:

Functional Characteristics
The functional characteristics of the Epoch DP series batteries are:

• [Characteristic 1]
• [Characteristic 2]
• [Characteristic 3]

Heating Function
The battery has a heating function for [specific purpose].

Series and Parallel Connection of Batteries

Introduction
This section provides information on how to connect batteries in series and parallel.

Parallel Usage
To use batteries in parallel, follow these steps:

1. [Step 1]
2. [Step 2]
3. [Step 3]

Serial Usage
To use batteries in series, follow these steps:

1. [Step 1]
2. [Step 2]
3. [Step 3]

Simultaneous Series and Parallel
To connect batteries in both series and parallel simultaneously, follow these steps:

1. [Step 1]
2. [Step 2]
3. [Step 3]

Battery Communication

Communication Terminal Connection
To establish battery communication, follow these steps:

1. [Step 1]
2. [Step 2]
3. [Step 3]

Networking Method
To network multiple batteries, follow these steps:

1. [Step 1]
2. [Step 2]
3. [Step 3]

APP Interface Display
The APP interface displays the following information:

• [Information 1]
• [Information 2]
• [Information 3]

Charging Requirements

AC-DC Charger
Use an AC-DC charger to charge the battery. Follow the manufacturer’s instructions for proper usage.

Photovoltaic Charging
To charge the battery using photovoltaic panels, follow these steps:

1. [Step 1]
2. [Step 2]
3. [Step 3]

Charging with an AC Generator through a DC-DC Charger
If using an AC generator and a DC-DC charger to charge the battery, follow these steps:

1. [Step 1]
2. [Step 2]
3. [Step 3]

Recommended Charging Voltage
The recommended charging voltage for the battery is [voltage].

Passive Balance Function
The battery has a passive balance function to ensure balanced charging of individual cells.

Battery Recycling
Follow proper guidelines for battery recycling. Do not dispose of the battery in regular household waste.

Transportation and Storage
Follow the recommended guidelines for transporting and storing the battery.

Warnings and Reminders
Pay attention to any warnings and reminders provided in the manual or on the equipment.

FAQ

Q: How should I dispose of the battery?
A: Follow proper waste disposal guidelines and do not dispose of the battery in regular household waste.

Q: Can I modify the battery?
A: No, it is not recommended to disassemble or modify the battery. Doing so may result in damage or safety hazards.

Epoch Batteries
Lithium Iron Phosphate Battery with Smart Monitoring

Epoch Batteries
Address:164 Andrew Drive, Stockbridge GA 30281
Email: support@epochbatteries.com
Web：https://www.epochbatteries.com/

Safety

Statement
Please read this manual carefully before installation, operation, and maintenance, and pay attention to various warning signs and statements on the equipment. After reading this manual, please keep it properly for future reference.

Specification
This manual contents using the following symbols should be paid special attention to during operation.

Critical safety info.
Before installing, operating, or maintaining the battery, the following operating and maintenance instructions must be read.

Before installing

• It is very important and necessary to carefully read the user manual before installing or using the battery. Failure to follow any instructions or warnings in this document may result in electric shock, serious injury, or damage to the battery and the entire system.
• Before connecting the battery pack to your device, check the voltage and ensure that they are within the limits of your device specifications. Failure to comply with these specifications will voi d your warranty.

During installation:

• Personnel familiar with the electrical specifications of their country or region are required to in stall battery packs. For optimal safety, please follow the steps described in this manual.

Battery operation:

• Prohibit connecting batteries to different types of batteries；
• Do not use faulty or mismatched chargers to charge the battery；
• The environmental conditions specified in the product specification must be followed;
• If the battery is found to be deformed, abnormally hot, or emitting an odor, please immediately cut off the power and stop using it.

Battery maintaining

1. Professional personnel should take care of the charging operation, ensure good contact between the plug and socket during the charging process, ensure normal operation of the charging equipment, and ensure good contact at all connection points of the battery pack. If there is an abnormality, it needs to be repaired before charging;
2. If there is a large amount of dust, metal shavings, or other debris on the upper cover and pole of the battery pack, clean it with Vacuum cleaner a timely manner to avoid using water or objects soaked in water for cleaning;
3. Try to avoid splashing water or other conductive objects onto the battery cover and pole during charging and discharging, such as when exposed to heavy rain for use;
4. Estimate the charging and discharging time of the battery or battery pack based on its actual usage status. Pay attention to observing whether there are any abnormalities in the battery or battery pack at the end of charging and discharging, such as voltage difference issues;
5. Check whether the conductive strip, voltage collection terminal, and other nodes are loose, detached, rusted, or deformed, ensuring that the batteries used in series or parallel connection are fixed and reliable (once/3 months);

Waste disposal
Please handle packaging and replace components in accordance with the laws and regulations of the country or region where the battery pack is located.
Do not mix batteries with daily life.
Dispose of garbage together

Installation

Tools and Equipment

Battery placement
Gently place the battery pack face up on the support surface, do not lay it on its side or upside down, and do not place any covers above the pack. The schematic diagram of battery pack placement is shown in Figure 3

Battery supporting materials

Table 1: Material List

interface at both

ends.

2| Battery| | 1| 12.8V120Ah or 1

2.8V200Ah or 12.8V3

00Ah

3| Screw| | 2| M8 * 12 stainles s steel screw

Introduction to EPOCH DP series batteries

Main features

• LiFePO4 chemistry – providing excellent safety and lifespan
• High reliability
• Maintain consistent performance over a wide temperature range
• With higher heat dissipation effect, it can maintain high current charging and discharging of the battery for a longer time
• The communication function enables the battery to communicate with external devices through CAN, enabling better battery management.

Product appearance

with your

hands

2| | Pole| M8 Terminal
3|

| Panel| Check the soc. runni ng light to preliminarily de termine whether the battery operates normally|
---|---|---|---|---
4| | Power Switch| When the battery is not used for a long time,   it can be disconnected to reduce self-consumption.
5| | Label| Carefully read the lab el and use the battery co rrectly according to the label content
6| | Handle| Convenient handling of batteries
7| | Port| Battery to battery communication, battery to e

xternal communication

8| | Pressure relief valve| IP67 to prevent lithiu m batteries from explodingin special circumstances
9| | Bracket| Convenient for fixing the battery on the ground

Heat sink
The heat sink is a battery cooling component, and rapid heat dissipation is beneficial for extending the battery life. At the same time, the heat sink is a hot decoration that cannot be touched by hand during battery use to avoid burns.

Pole terminal
Each battery has a positive terminal and a negative terminal. During use, be sure to identify andavoid reversing the positive and negative poles. After connecting the power line to the pole terminal, cover it with a protective cover to avoid short circuits.

Display panel

The battery display panel has 1 fault/running light, 4 SOC indicator lights, and 1 button: the usage method is as follows

RUN/ALM: One red light, one yellow light, displayed in yellow when the battery is normal; When there is a battery failure alarm or protection, it will display in red.

Table 2: Explanation of indicator lights

Indicator light  | Always on during charging or discharging| Flashing during standby 1
---|---|---
Indicator light

| Always on when there is a malfunction|
Blinking mode| Lighting time| Off time
---|---|---
Blink 1| 0.25s| 3.75s
Blink 2| 0.5s| 0.5s

SOC indicator lights: 4 green lights, representing different SOC according to different lighting methods.
One lamp represents 25% SOC

Battery switch

Power switch: The battery power switch is used to turn the battery on or off. When the battery is in the ON state, it indicates that the battery BMS is in a normal state and can be charged, discharged, and connected to Bluetooth;
When the battery is in the OFF state, it indicates that the battery is in a shutdown state, and cannot be charged or discharged, and cannot connect to the battery Bluetooth; The battery enters a sleep state. When the battery is not used for a long time, placing the switch in the OFF state can reduce BMS power consumption.

The lithium battery is equipped with an intelligent BMS, which is designed to better protect the battery cell. From the OFF state to the ON state, the BMS performs a self-check, and the self-check time does not exceed 10 seconds. Therefore; the startup time is normal within 10 seconds.

Reset button: The battery cannot be used normally until it is activated.V

Usage method:

1. When using the battery for the first time, place the battery power switch in the ON position;
2. Short press the reset button for 1s to indicate battery SOC, and the LED will be on for 10s;
3. Long press and hold the reset button for 10s to activate the battery. After activation, the LED ligatwill indicate the battery SOC; RUN light flashing yellow; It is used to automatically match the battery address for networking. For detailed purposes, please refer to the networking function.

Label
Labels are performance parameters displayed. During use, it is important to match the corresponding charger and load according to the label parameters to avoid battery failure.

Handle
The handle is used to bear the weight of the battery. When lifting the battery, pay attention to observing the stability of the handle to avoid the battery falling off;

Communication port
There are two communication ports: one is Link in and the other is Link out. Pay attention during use.
When the battery needs to communicate with external devices, a Link in needs to be connected;

A: Schematic diagram of single battery usage

B: When multiple batteries are used in series or parallel, the external device communication line needs to be connected to the battery Link in;

Pressure relief valve
The waterproof grade is IP67, because the battery is heating during charging and discharging, which leads to thermal expansion. Adding a pressure relief valve can prevent the air pressure inside the battery box from rising, resulting in dangerous accidents. Make sure that there is no other objects around the pressure relief valve.

Installation bracket
Install the bracket to facilitate the installation of battery in vehicles. It is recommended to use M6 stainless steel screws to secure the battery.

Functional characteristics

Item

| ****

12120

| ****

12200

| ****

12300

---|---|---|---
Nominal voltage| 12.8V
Nominal energy| 1536Wh| 2560Wh| 3840Wh
Nominal capacity| 120AH| 200Ah| 300Ah
Internal resistance@1khz AC| ≤30mΩ
Allowed MAX. charge current@ 25°C| ****

100A

| ****

200A

| ****

300A

Allowed MAX. discharge current @25°C| 150A| ****

200A

| ****

300A

Recommend charge current| 50A| 100A| 150A
Recommend discharge current| 100A| 150A| 200A
Peal /Surge current limit| 800A-10s SOC >60%| 800A-10s| 800A-10s
Short circuit current| 1000A-500μs| 1200A-500μs| 1200-500μs

First use

1. Observe that there are no signs of the battery being disassembled;
2. When the battery leaves the factory, the power switch will be turned off and in the OFF state;
3. Before using the battery, it is necessary to turn the switch to the ON state, and the LED display light will be on.
4. Keep pressing reset button for 10s in first using.

Communication port

1.  Communication ports with CAN communication;
2. You can upgrade the battery firmware through the communication port;
3. It can communicate with other devices through the communication port.

Power Switch
When the battery is in transportation or long-term storage, it can be turned off, which is of extremely I ow self-consumption, ensuring that the battery can be stored for a long time without being discharged.
At the same time, it is beneficial to improve the safety of the battery.

Heating function
The battery has a low-temperature heating function. When in cold weather, the battery is equipped with a built-in heater. When a charger is inserted, the built-in heater will automatically warm up the battery to 8°C and then switch to charging mode.

Series and parallel connection of batteries

Introduction
The DP-series battery allows multiple batteries to be connected in series or parallel, as well as simultaneously connected in series and parallel. This allows for the assembly of different voltage systems and the expansion of battery system capacity. For example, four 12.8V200Ah batteries can be connect ed in series and parallel to form a 25.6400Ah battery system.

When multiple sets of batteries are connected in series and parallel at the same time, in addition to external power lines, communication lines can be connected between the batteries, and internal communication between the batteries can better obtain battery information. One battery can be set as the ho st battery, and the other batteries can be set as the slave battery. The host collects all information ab out other slave batteries, and can communicate with external devices such as inverters, display screen s, MPPTs, etc.

Before connecting batteries in series or parallel, it is necessary to pay attention to:

• The batteries must be of the same model. Different models, different capacities, and different voltage platforms, series and parallel connection is not allowed;
• Ensure that all parallel wires are of the identical length;
• 0.5C charging is recommended, that is, charging current=rated capacity of battery * 0.5C;
• before connecting the batteries in series and parallel, the voltage of each group of batteries must remain highly consistent. It is recommended that the voltage difference between battery packs be:
  • Voltage difference < 2000mV (@ 0%~95% SOC)
  • Voltage difference<1500mV (@ 96%~100% SOC)

When battery batteries are connected in series and parallel, it will be charged and discharged as a whole system. 4.2 Parallel usage

A maximum of 16 batteries can be used in parallel. Before connecting batteries in parallel, a multimeter needs to be used to test the voltage between the positive and negative terminals of the battery. You can u also check the battery voltage through the Bluetooth app to ensure that the voltage between the batteries does not exceed 2V, which can be connected in parallel. If the voltage between the batteri es exceeds 2V, each battery needs to be fully charged separately, left for 1 hour, and then used in p arallel.

For example, two 12.8V120Ah are used in parallel

• System voltage: 12.8V
• System capacity:120Ah + 120Ah = 240Ah

Do not output positive and neg ative poles on the same battery, which may damage the battery.

Serial usage
A maximum of 4 batteries can be used in series. Before connecting the batteries in series, a multimeter needs to be used to test the voltage between the positive and negative terminals of the battery. Yo u can also check the battery voltage through the Bluetooth app to ensure that the voltage between th e batteries does not exceed 2V. If the voltage between the batteries exceeds 2V, each battery needs to be fully charged separately, left for 1 hour, and then used in series. Series connection method:
Connect the positive pole of the battery to the negative pole of the next battery, and so on.

For example, two 12.8V120Ah batteries connected in series

• System voltage : 12.8*2=25.6V
• System capacity : 120Ah

Simultaneous series and parallel
DP batteries allow simultaneous use of batteries in series and parallel, with a maximum support of 4 series and 4 parallel applications. The connection method is: first in series, then in parallel, which means that the batteries are connected in series to form a high voltage, and then in parallel to for ma high capacity.

For example: 16 12.8120Ah batteries, 4 in series & 4 in parallel —- System voltage: 12.8V 4=51.2V
System capacity: 120Ah 4=480Ah

Battery communication

Communication terminal connection
The series of Epoch DP batteries have the function of communication networking between batteries.

When communication with external devices is needed, the networking function can be used to enable the battery to summarize information. The battery can be used alone or used for communication networking, which is more prominent in some intelligent devices. When using this function, it is important to understand its purpose and carefully read the following instructions for correct operation.

The battery includes a Controller Area Network (CAN) bus communication interface. Two circular M8 DIN connectors are located at the top of the battery to connect one battery (Link in) to another battery (Link out) using a CAN bus cable in a simple daisy link wire method.

Communication line connection method:

User can use an external communicated cable (optional) to connect to batteries and other device via CAN bus. This allows for communication between the battery and the load or charger, making it more efficient to use the battery. This is also beneficial for understanding battery faults. If you have more questions about the CAN bus, please contact Epoch for technical support.
For normal battery operation, the CAN bus function is not mandatory. The battery can automatically operate and protect itself; it does not require any CAN bus communication or external devices (such as external controllers) or other CAN bus connected batteries to operate. Retain the two black covers installed on the two M12 connectors to protect them from environmental influences when not in use.

Networking method:
After connecting the battery through the communication cable, it is necessary to use the Bluetooth connection method through the smart APP to network the battery.

1. Equipment operation:

2. Wiring: When all batteries are turned off, use the power line to connect the batteries in series and parallel (first in series and then in parallel); Please refer to this chapter‹4.2 Parallel Us e>.<4.3 Series Use>.<4.4 Simultaneous Series & Parallel Use>

3. The battery connected to external devices serves as the first battery (Battery1), and we define this battery as the host, while other batteries are the slaves;
   The LINK OUT of host battery is connected to the LINK IN of slave battery2,Connect the LINK OUT of slave battery to the LINK IN of slave battery; and so on.

4. Turn on the battery power switch: switch from OFF to ON

Matching address: After pressing the host battery 1 reset button for 10 seconds, the indicator light will start running. After all the indicator lights are off, it means that the internal address allocation of the battery is completed;

1. Attention: The battery must be connected to the power line in a series first and t hen in parallel mode; The communication line should first connect the first cluster of series connected batteries, and then connect the second cluster of series conne cted batteries, cannot mix; The matching address must be selected battery as the host, and long press and hold its reset button for 10s. Cannot select and press the reset button of other slave batteries. This step is particularly important as improper operation may result in battery networking failure.

2. APP operation (this step needs to match the use of the mobile app and enable the Bluetooth function of the phone):

3. Networking: Open the communication networking interface of the APP, click the “+” sign, set the system name, select the voltage platform of the battery, determine the actual number of series and parallel connections, and click Next after setting;
   Connect to the host: Click on Battery to connect to the host battery, select the corresponding host, save, and the network distribution is successful; The device indicator light is constantly on;

4. Maximum allowable series parallel connection for 12V batteries:

APP interface display

1. Support fuzzy search device: search for battery system by name;

2. System List:

3. Display system data: system name, system voltage, system current ;

4. Click “+” to add system configurations, with a maximum of 6 systems saved ;

5. The switch can connect and disconnect the system ;
   Long press to delete the system

6. Device List

7. Searchable device Bluetooth name, signal strength, device address, and device SOC Please refer to the APP user manual for details.

Charging requirements

We recommend using a charging source with specific lithim charging settings to meet the following charging requirements to achieve the optimal performance and lifespan of EPOCH DP series batteries.

Note: Batteries with heating function need to be heated before switching to charging mode.

AC-DC charger
Check if the AC-DC battery charger you plan to use has a dedicated lithium charging setting that meets the above charging requirements. Many battery chargers are only designed to charge Lead-acid battery and may not have appropriate lithium charging settings.

Photovoltaic charging
Check if the solar regulator you plan to use has a dedicated lithium charging setting that meets the a bove charging requirements. The EPOCH series batteries can be charged using a solar regulator wi thout lithium charging settings. However, it must be set to charge no more than 58.4V (4 batteries in series, with a maximum charging voltage of no more than 14.6V for a single battery). After the battery is fully charged, please turn to the recommended floating voltage.

Charging with an AC generator through a DC-DC charger
Check if the DC-DC charger you plan to use has a dedicated lithium charging setting that meets the above charging requirements. You can use a DC-DC charger without lithium charging settings to charge EPOCH series batteries. However, it must be set to charge no more than 58.4V (4 batteries in series, with a maximum charging voltage of no more than 14.6V for a single battery), and then it must be turned off after the EPOCH series battery is fully charged. After the battery is fully charged, please turn to the recommended floating voltage.

Recommended charging voltage
We strongly recommend a dedicated charger for lithium-ion batteries to better fully charge the battery.
At the same time, according to the actual situation, AGM chargers can also be used to charge the battery, which can achieve varying degrees of effect.

Passive balance function
When the battery is charged close to SOC 100%, due to the chemical characteristics of lithium batteries, the voltage difference between the cells will gradually expand. In order to ensure that each cell has the same capacity, slightly higher capacity cells will be consumed, which can allow the remaining cells to catch up.

Battery recycling
Epoch® DP lithium-ion batteries are recyclable and should not be treated as household waste or landfill waste. If you need assistance in recycling batteries, please contact your dealer or Epoch.

Transportation and Storage

• During transportation, there should be no severe vibration, impact, or compression, and it should be protected from sunlight and rain.
• Handle with care during loading and unloading, and strictly prevent falling, rolling, and heavy pressure.
• The battery should be stored in a dry, clean, dark and well ventilated indoor environment for a long time. The recommended storage temperature range is 15~35
• The storage area is free of harmful gases, flammable and explosive materials, and corrosive chemicals.
• Batteries should be stored and transported at temperatures close to 50% SOC.
• If not used for a long time, the battery needs to be charged every 6 months according to the specifications.
• It is strictly prohibited to collapse, and the stacking should not exceed 6 layers, with the surface facing upwards.

Warnings and reminders

Please carefully read the battery specifications or instructions before use. Improper use may cause the battery to heat up, catch fire, rupture, damage, or decrease capacity. Epoch Batteries shall not be responsible for any accidents caused by not following our operating instructions.

Warning!

• The battery must be kept away from heat sources, high voltage, and directly exposed to sunlight.
• Do not throw the battery into water or fire.
• Do not invert the two terminals when using the battery.
• Do not connect the positive and negative poles of the battery to the conductors.
• Do not strike, throw, or step on the battery.
• Do not disassemble the battery without the manufacturer’s permission and guidance.
• Do not mix batteries of different capacities and brands; pack electrolyte leaks, please take the following steps immediately:
  • Inhalation of gas: Evacuate personnel from the contaminated area and seek medical attention as soon as possible.
  • Eye contact: Rinse eyes with water for 15 minutes and seek medical attention as soon as possible.
  • Skin contact: Thoroughly rinse the exposed area with soap and water to ensure there are no chemicals or soap residues on it, and seek medical assistance as soon as possible.
  • Swallowing: Try to induce vomiting and seek medical attention as soon as possible.
  • Fire: Please use carbon dioxide fire extinguishers instead of liquid fire extinguishers to extinguish the fire.

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