EPEVER LFP2.56KWH12 Lithium Battery User Guide

EPEVER LFP2.56KWH12 Lithium Battery

Product Information

Specifications

• Manufacturer: HUIZHOU EPEVER TECHNOLOGY CO., LTD
• Model: LiFePO4 (LFP) Battery – LFP2.56KWH12.8V-P65L2GF40
• Voltage: 12.8V
• Capacity: 2.56kWh

Important Safety Instructions
When using the EPEVER LiFePO4 battery, it is crucial to follow these safety instructions to ensure proper operation and prevent any hazards.

Work and Storage Precautions

1. Store the battery in a cool, dry place away from corrosive, explosive, and insulating gases.
2. Securely fix the battery in a suitable environment to prevent vibration and collision.
3. Avoid short-circuiting or disassembling the battery.
4. Maintain the battery at a half-charge state (40%~80% SOC).
5. Dispose of discarded batteries safely and responsibly.

Hazard Warning

1. Avoid destructive acts on the battery such as crushing, dropping, or puncturing.
2. Do not disassemble or short-circuit the battery to prevent damage.
3. Avoid heating or burning the battery to maintain safety functions.

Emergency Treatments

1. Avoid skin and eye contact with leaked electrolytes; seek medical help if contact occurs.
2. Prevent swallowing of any part of the battery or its substances by humans or animals.

Product Usage Instructions

Charging Operation

1. Check all cables for damages and ensure the mains supply meets charger and battery specifications.
2. Turn off the charger before connecting it to the battery. Check battery polarity before connection.

Discharging Operation

1. Ensure load and equipment are off before discharging.
2. Connect the battery to the load and equipment correctly, checking polarity before connection.
3. Standard discharge: Discharge with a constant current of 40A (0.2C) until the battery voltage drops to 10.4V.

Frequently Asked Questions (FAQ)

• Q: How should I store the LiFePO4 battery?
  A: Store the battery in a cool and dry place away from corrosive, explosive, and insulating gases. Avoid exposing it to sources of fire, heat, or high voltage.

• Q: What should I do in case of a battery leak?
  A: Avoid skin and eye contact with leaked electrolytes. Wash immediately with plenty of water and seek medical help if contact occurs.

Thanks for selecting the EPEVER LiFePO4 battery; please read this manual carefully before using the product. Do not use the product in humid, salt spray, corrosion, greasy, flammable, explosive, dust accumulative, or other severe environments. Please reserve this manual for future review.

Important Safety Instructions

Work and storage precautions:

• Please store the battery in a cool and dry place. Keep the battery away from corrosive, explosive, and insulating gases or conductive dust, as well as away from sources of fire, heat, and high voltage. It is forbidden to immerse the battery in water and keep children out of reach of the battery. No static electricity exists (static electricity can easily damage the battery protection circuit and cause battery damage).
• Fix the battery securely in a reasonable environment, and connect the connector reliably to avoid arcs and sparks caused by the contact friction.
• Handle the battery gently to avoid vibration, collision, and pressure shock. Otherwise, it may cause a battery short circuit, resulting in high temperature and fire.
• Do not short-circuit the battery, and do not disassemble the battery to avoid danger.
• Please keep the battery in a half-charge state (40%~80% SOC is preferred). Please use non-conductive materials to wrap the battery to avoid direct contact with metal, which may cause damage to the battery.
• Dispose of discarded batteries safely and do not put them in fire or liquid.

Hazard warning:

• It is strictly forbidden to crush, drop, collide, puncture, burn, or other destructive acts on the battery.
• Do not disassemble the battery. Improper disassembly may damage the battery’s protection function, causing battery deformation, heating, smoking, or burning.
• Do not short-circuit the battery. Connecting the battery’s positive and negative poles with conductive materials, and storing and transporting the battery together with conductive materials are prohibited.
• Do not heat or burn batteries. Otherwise, it will cause the melting of battery components, loss of safety functions, or electrolyte combustion. Overheating can deform the battery, heat, smoke, or burn.

Emergency treatments:

• Avoid skin and eye contact with the electrolyte when it leaks. In case of contact, immediately wash with plenty of water and seek help from a doctor.
• It is forbidden for any person or animal to swallow any part of the battery or the substances contained in the battery.

Appearance

1. Lithium battery negative terminal
2. Lithium battery-positive terminal

Charging Operation

1. General Checking.

   •  Check thoroughly including all the cables for showing no damages.
   • Make sure the mains supply complies with the specifications of the charger and the battery.

2. Turn off the charger and connect it to the battery.
   WARNING: Check the battery polarity before connecting to the charger. It is forbidden to reverse-connect the battery.

3. Connect the charger to the main supply and turn on the charger.

Standard charge:
Charge to 14.4V with 40A (0.2C) constant current, and then charge to 10A (0.05C) with 14.4V constant voltage cutoff.

Note:
All tests stated in this document shall be performed at 25±2℃.

Discharging Operation

1. Before discharging, ensure the load and equipment are in the off-state.

2. Connect the battery to the load and equipment correctly.
   WARNING: Check the battery polarity before connecting to the load and equipment. It is forbidden to reverse-connect the battery.

3. Turn on the load and equipment.

Standard discharge:
After the battery is standard charged, discharge the battery with a constant current of 40A (0.2C) till the battery voltage drops to 10.4V.

Battery series/parallel

• Battery series diagram
• Battery parallel diagram

Warning:
When batteries are connected in series or in parallel, use a multimeter to measure the battery voltage. Ensure that the voltage of all batteries is the same or that the pressure difference is less than 0.2V (it is normal to have a slight spark during parallel connection). Do not use batteries in series or in parallel beyond this range.

Disclaimers

• Please use the LFP batteries under the product specification. It may cause fire or expansion if the batteries are used incorrectly.
• We will not guarantee performance and safety unless the batteries are used under the product specification.
• Improper use or storage of batteries resulting in poor performance is not covered by the warranty.
• When the battery cycle life meets the requirements of the specification, the battery will expire prematurely.

Xiaoxiang Electric APP

1. Xiaoxiang Electric APP is a lithium battery management APP independently developed. The APP mainly displays: lithium battery voltage, current, capacity, temperature and other curves, charge and discharge switch control, SOC, battery voltage, Charge and discharge current, protection status, basic parameters, etc., through the background permission operation, you can also set the parameters of the lithium battery protection board to make the health status of the lithium battery more transparent and ensure the safety of the use of the lithium battery. According to market feedback, the upgraded version of Xiaoxiang Electric optimizes the overall interface, adopts a modular layout, and adds more parameters and function settings, just to bring users a faster, more complete, and stronger experience.

2. Registering an Account:
   After the Xiaoxiang Electric APP is successfully installed, open the APP, allow Bluetooth to be turned on, and obtain location information, the APP will automatic the account registration page pops up, please enter the mobile phone number as required, set the password, and click Confirm when finished.

3. Bind/Unbind Device:

4. Binding device: When connecting to Bluetooth for the first time, the APP automatically pops up a dialog box to prompt: whether to bind this device, click OK to bind; Obtain Setting permissions requires background consent to modify parameters(After the battery is bound, other users cannot connect to the battery).

5. Unbind devices: Enter the My interface, select the device that needs to be unbound, and click Unbind. One account can be bound to multiple devices.

Specifications

100A

Work Voltage Range| 10.4V~14.4V
Open-circuit Voltage| 12.7V~13.6V
Internal Resistance| ≤20mΩ

Cycle Life

| ≥4000 times (0.5C charge&discharge 80%DOD @25℃)
Number of series/parallel| Max 4 battery packs in series
Certification| UN38.3 MSDS IEC62619 CE-RED ROHS
Charge&Discharge Temperature| Charge: 0℃~+55℃

Discharge: -20℃~+60℃

Storage Temperature Range①

| -5℃~+0℃/35℃~+45℃ (≤2months); 5℃~+35℃ (≤3 months, best storage

temperature); 15℃~+35℃ (≤6 months)

Relative Humidity| 60%±20% RH
Connect Terminal| M8
Dimension (L x W x H)| 522mm268mm218mm
Net Weight| 23.1±0.5KG
IP Class| IP65
Warranty| 3 years (see warranty agreement for details)

1. When the battery is stored for more than 3 months, the storage voltage should be maintained at 13~13.4VDC.
2. For long-term storage, charge at least once every three months (no less than 30 minutes@0.2C).

References

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