Haicen LiFePO4 Battery Pack 12.8V75Ah User Manual

Haicen LiFePO4 Battery Pack 12.8V75Ah

Product Information

discharge for 10s
Impedance| 20m (AC), 40m (DC)
Battery Case Material| Nickel plated steel shell

Product Usage Instructions

Charge
Connect the charging terminal of the battery pack to a compatible charger. Follow the standard charge current of 0.5C (2A) and charge the battery pack until the voltage reaches 3.65V. Then, continue with a constant voltage charge at 3.65V until the current tapers to 0.05C (0.2A).

Discharge
Connect the discharge terminal of the battery pack to the load using appropriate connectors. Ensure that the polarity is correct and do not reverse the connection.

BMS Function
This battery pack is equipped with a battery management system (BMS) that provides various protections including over discharge, over charge, over current, short circuit, over temperature, and low temperature protection. The BMS can be monitored and controlled using Bluetooth connectivity.

Bluetooth Function Description
The Bluetooth function allows you to connect your device to the battery pack and monitor its operation status. It provides information on battery levels, charging status, and any protection alerts.

Extra Tips
If you encounter any difficulties, please contact us for assistance. Avoid damaging the circuit board as it may cause functional failure. Do not apply excessive force or deformation to the product as it may damage electronic components or connections and make the product unstable.

Customer Name|
---|---
Model| 4S13P-26650-3.2V-4000mAh
Version| A/0
Revision| 2022-05-12

NO. : LI2022009
REV ： A/0

Revision History

Cell Specification

2

| ****

Nominal Voltage

| ****

3.2V

| ****

Average for Std. discharge

3| Max. Charge Voltage| 3.65V|
4| Min. Discharge Cut-off Voltage| 2.0V|

5

| ****

Standard Charge

| 25°C±2°C, 0.5C(2A) constant current charge to 3.65V, followed by 3.65V constant voltage charge until current taper to 0.05C(0.2A)|

6

| ****

Standard Discharge

| 25°C±2°C, 0.5C (2A) constant current discharge to 2.0V.|
7| Standard Charge Current| 0.5C(2A)|
8| Standard Discharge Current| 0.5C(2.A)|
9| Max. Continuous Charge Current| 1C (4A)|

10

| Max. Continuous Discharge Current| ****

2C(8A)

|

11

| Weight| ＜95g|

12

| Storage Temperature| Within 1 year： – 20 ~ 25°C| Storage at 40%-60%SOC
Within 3 months： -20 ~ 45°C

13

| Operating Temperature (Battery Surface Temperature)| Charge： 0°C ~ 55°C|
Discharge： -20°C ~ 60°C|

14

| Impedance| ≤20mΩ (AC)| 25℃, 50%SOC, 2C(9A)

discharge 10s

≤40mΩ (DC)
Battery Case Material| Nickel plated steel shell|
Drawing

Product Specification

13

| Passive Protection Function| Over charge protection, Over discharge protection, Temperature protection, Balanced function,Bluetooth
14| Charging Terminal| ****

M6

15| Discharge Terminal

16

| ****

Cycle Life

| ≥3,000@0.5C/1C（100%DOD）
≥6,000@0.5C/1C（80%DOD）
Drawing

Characteristics Curve

User’s Manual

Charge
Charging terminal of battery pack is connected to charger appropriate with it, and then charge. Charge voltage is 14.4±0.2V. Do not reverse.

Discharge
Discharge terminal of battery pack is connected to load with connectors, and then discharge. Do not reverse.

BMS function

This battery pack has a battery management system (BMS), which can monitor the operation status of the system through Bluetooth, providing over discharge, over charge,over current, short circuit, over temperature and low temperature protection.

Bluetooth function description

Extra Tips

You encounter difficulties, please contact us, we will try our best to provide you with service and help.

• Please do not be machined on the circuit board, any damage may cause functional failure of the internal circuit;
• Please do not make the force and deformation to the product, any damage to electronic components or lines may make the product unstable.
• Please do not disassemble the shell, lest you cause unnecessary damage to you;
• The charging terminal polarity is reversed, and it burn internal circuit board, please pay attention to the port when connect.

Tests

Single cell and Protection Circuit Specification are only results of standard test, this is for your reference only.

Standard Test Requirements
Battery test must be within 1 month after production. All tests in this specification should be at standard atmospheric conditions. (Temperature: 25± 2℃, relative humidity: 65± 20%).Charge voltage is 14.4±0.05V, Standard cutoff voltage is about 10 V;
Standard current is I5 (A).

Standard Charge
Charge the battery with Lithium ion battery special test cabinet, supply standard voltage, standard current until current down to 0.05I5(A).

Standard Discharge
Discharge the battery at standard current with special detection device, constant discharging to standard discharge cutoff voltage or until the battery stop.

Capacity Retention Rate

Test Methods                                                    Test Standards

Standard charge, in standard test conditions on hold for 28 days, standard discharge.| capacity retention rate≥80%

Cycle Life
Cycles Life≥6000 cycles, capacity retention rate≥80%). (Standard charge at 0.5C, rest 0.5~1h; discharge at 1C to cut off voltage, rest 0.5~1h, repeat the above steps until 6000cycles.)

Cautions
Please pay attention to followings in case of battery will have leakage, heat etc.

• Do not immerse the battery in water or seawater, and keep the battery in a cool dry surrounding if it stands by.

• Do not use or leave the battery at high temperature as fire or heater. Otherwise, it can overheat or fire or its performance will be degenerate and its service life will be decreased.

• Do not reverse the positive and negative terminals.

• Do not reverse polarity charging.

• Do not connect the battery electrodes to an electrical outlet.

• Do not short circuit. Otherwise it will cause serious damage of the battery.

• Do not transport or store the battery together with metal objects such as hairpins, necklaces, etc.

• Do not strike, trample, throw, fall and shock the battery.

• Do not directly solder the battery and pierce the battery with a nail or other sharp objects.

• Do not use the battery in the location where static electricity and magnetic field is great, otherwise, the safety devices may be damaged, causing hidden trouble of safety.

• Do not overload with battery

• Please use special charger for charging.

• Please charge the battery within 24 hours after fully discharged.

• If the battery leaks and the electrolyte gets into the eyes, do not rub the eyes, instead, rinse the eyes with clean water, and immediately seek medical attention.
  Otherwise, it may injure eyes.

• If the battery gives off strange odor, generates heat, becomes discolored or deformed, or in any way appears abnormal during use, recharging or storage, immediately stop charging, using, and remove it from the device.

• In case the battery terminals are dirty or oxidation, clean the terminals with a dry cloth before use. Otherwise poor performance may occur due to the poor connection with the instrument.

• Tape the discarded battery terminals to insulate them.

Battery Checking

• After receiving the battery, you should first check the packing carefully. During the handling process, please ensure there’s no shock on the battery.
• Please check the battery case and accessories if there’s any damage or leakage, if so, please contact us immediately.
• Please check the output connector is correct or not, measuring the voltage between positive and negative, if it’s within the normal standard.

Installation and Precautions

• No smoking or fire during installation to avoid short-circuit of battery and prevent equipment damage or personal injury.
• The battery should be installed under the condition with well-ventilated and no sunlight. Don’t put it under place with possible flooding.
• When fastening battery terminals, please don’t use excessive force, or the terminals could be damaged.
• Clean the surface of battery with dry cloth, please don’t use oil or other volatile organic solvents to clean, or it may damage it.
• Please make sure that the positive (+) & negative (-) polarity is correct connected, or it may fire or damage the battery and load.
• Start testing the equipment if it could be well working with battery.
• Using and maintenance

Battery Using and Maintenance

• Charging current should be less than maximum charge current specified in the Product Specification, charging current bigger than recommended current may damage the battery.

• Discharging current should be less than maximum discharge current specified in the Product Specification; discharging current bigger than recommended current may damage the battery.

• Discharge temperature:-20℃~+60℃.Humidity:RH≤85%.When the temperature is higher than 45℃, please note ventilation. When the environment humidity is higher than 85%, please pay attention to protection. Charging temperature:0℃~+45℃.Humidity: RH≤85%, When the environment humidity is higher than 85%, please pay attention to protection; storage temperature: 0℃~40℃ (Best temperature is 15℃~25℃ in dry environment). Temperature affects the capacity of battery obviously, it’s normal.

• When the battery power is low, please charge it in time. This could ensure longer cycle life. If the battery can’t be charged in time and let it under power shortage condition, it may affect the cycle life.

• The lithium-ion battery charge discharge shallow is beneficial to improve the cycle life, proposal user each discharge is put to the nominal capacity of 80%.

• It should be noted that the cell would be possible to be at the over-discharged state by its self-discharge characteristics in case the cell is not used for long time.
  In order to prevent over-discharging, the cell shall be charged periodically to maintain a certain voltage range 13.2V~13.6V, 2months one cycle，Overdischarging may causes loss of cell performance, characteristics, or battery functions. But for battery packs with commnunication fuction, please maintain it once in 1 month.

• Don’t use organic solvents to clean the battery case. If for battery fire accident, please use dry powder fire extinguisher or sand.

• Battery is a consumable product with limited cycle life. Please charge it in time when the capacity can’t reach the requirement to avoid any loss of the user.

Battery Common Troubles and Solutions

• Battery voltage is too low after fully charged.

• Battery was in long-term storage with no usage, not in accordance with the provisions for maintenance either.
  Solution: charge the battery can be solved.

• Battery disconnected
  Solution: remove the battery to check whether the line is broken or not, the solder joints come off or not, nickel belt breaks or not, and then repair according to the damage situation.

• Protection circuit does not work
  Solution: first, make sure the cable is contact with the protection circuit well, then, observe solder is off or not. If the above conditions are normal, please test voltage between B+/B- and P+/ P- voltage, then the board would be failed if the voltage difference is very high. Then please do testing in detail on protection circuit, if not pass, please change another new protection circuit.

• Battery suffered fierce collision, with character-external battery case damaged or with electrolyte odor.
  Solution: It’s not in the scope of maintenance generally. If needing maintenance, we need the confirmation of the problem whether on the output line or the battery itself.
  First, open the battery case, check the battery P + / C + and P- / C- lines or joints damaged or not. If damaged, it needs to be replaced. Then, instigating smell odors method to determine the battery, if there is irritation electrolyte odor, indicating that the battery has been leaking. You need to test the voltage of each series. If the voltage of one series is very different with much lower voltage, then this series needs to be replaced.

• Insufficient capacity
  Solution: To charge and discharge the battery with 3~5 cycles generally.

• Battery voltage instability or cannot charge or discharge normally.

• Faulty soldering
  Solution: To test the resistance with the internal resistance tester, and confirm the internal resistance of the battery exceeding a predetermined value or not. If not, the battery would be in faulty soldering condition, the battery needs to be unpacked to be welded again.

• Protection circuit abnormal
  Solution: replace the protection circuit.

• Connector or terminals in poor contact condition
  Solution: replace the terminals or connectors

• Battery works properly in charging but could not discharge or discharging well but could not charge.
  Solution: The protection circuit is damaged; you need to replace the protection circuit.

Other Technical Indicators

If you need battery protection parameters and other related parameters, please contact our sales or technical staff, we will provide you as soon as possible.

Products Liability
Shandong Haicen Power Co., Ltd. is not responsible for the incident caused by not obeying the Manual. Before using the battery, you should read the specifications, usage instruction and some attentions carefully to learn its application method and areas. If the phenomenon such as incorrect using method or wrong circuit connection, or input power data, working index are inconsistent with the Manual, cause damage to product, load and its accessories, we are not responsible for it.

References

• charger是什么意思_charger的翻译_音标_读音_用法_例句_爱词霸在线词典
• 金山词霸
• 金山词霸

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