1.Scope

This product is designed and manufactured by Shenzhen Saijiaoyang Energy Technology Co., LTD. LFP battery pack (including BMS). It consists of 8S1P units in series. Battery assembly intelligent sorting, accurate and reliable. BMS uses a professional protection board test system, which is fully tested before going online to ensure that the battery pack is fully and effectively protected by BMS during use. This product has the characteristics of high energy density, long life, safety and reliability, light weight, wide temperature range, etc.

2.BatterySpecification

    1.Electrical Characteris tics

• Combination Method:8S1P
• Nominal Voltage:25.6V
• Nominal capacity:102Ah
• Minimum capacity:100Ah
• Energy:2560Wh
• Internal Resistance:≤50mΩ
• Cycle Life:≥4000cycles

    2.Standard Charge

• Charge Voltage:29.2V±0.2V
• Charge Mode:0.2C to 28.8V,then 28.8V,charge current to 0.02C(CC/CV)
• Charge Current:52A

    3.Standard Discharge

• Continuous Current:104A
• Peak discharge current:150A/1S
• Discharge Cut-off Voltage:21.6V

    4.Environmental

• Charge Temperature：0 ℃ to 50 ℃ @60±25% Relative Humidity
• Discharge Temperature：-20 ℃ to 55 ℃ @60±25% Relative Humidity
• Storage Temperature：0 ℃ to 30 ℃ @60±25% Relative Humidity
• Dimension：522*240*218mm
• Weight(kg)：21±0.5kg

3.BMS Basic protection function BMS 

3.1 Overcharge protection: When the battery is charged, the voltage continues to rise, and the protection board detects that the voltage of any cell is higher than that of the battery Charge protection value, the protection board starts timing immediately, when the time reaches the overcharge protection delay, the protection board turns off the charging MOSTube, charge cut-off, can not charge at this time.

3.2 Overcharge protection recovery: After the overvoltage protection occurs on the protection board, the battery voltage drops when the battery is standing or dischargingWhen the protection board detects that the voltage of each section is lower than the overcharge protection recovery voltage, the protection board outputs the signal and starts the charging MOS tube.It can be charged at this point.

3.3 Overdischarge protection: When the battery is in the discharge state, the voltage continues to decrease, and the protection board detects that the voltage of any cell is lower than the overdischarge protection Protection value, the protection board starts timing immediately, when the time reaches the over-discharge protection delay, the output signal of the protection board turns off the discharge MOS Tube, discharge cutoff, load lock circuit work, can not discharge at this time.

3.4 Overdischarge protection recovery: After the protection board is over-discharge protection, the battery voltage continues to rise when the battery is standing or chargingWhen the protection board detects that the voltage of each section is higher than the recovery voltage of the overdischarge protection, the load is disconnected or charged again at this time, and the protection board outputs Out of the signal, open the discharge MOS tube, at this time can discharge.

3.5 Overcurrent protection: When the battery is in the static or discharge state, the current suddenly increases. When the protection board detects that the current reaches the overcurrent protection Value, the protection board starts timing, when the circuit current duration reaches the overcurrent protection delay time, the protection board output signal Turn off the discharge MOS tube, the load lock circuit works, and the discharge cannot be performed at this time.

3.6 Overcurrent protection recovery: After the discharge overcurrent protection occurs on the protection board, the discharge MOS tube is turned off and the current in the loop becomes 0.now Disconnect the load or charge, the protection board output signal, start the discharge MOS tube, then discharge

4.Battery Required Protection Functions

    1.Over charge Protection

• Over charge detection voltage：3.750±0.030V
• Over charge detection delay time：500mS—1500mS
• Over charge release voltage：3.55±0.050V

    2.Over discharge protection

• Over discharge detection voltage：2.7±0.1V
• Over discharge detection delay time：500mS—1500mS
• Over discharge release voltage：2.7±0.1V

    3.current protection

• Continuous Current：100A
• Discharge protection overcurrent：250±20A
• Overcurrent detection delay time：500mS—150mS
• Release condition：Load off or charge off

    4.Short protection

Short circuit description: Short circuit current less than the minimum or higher than the maximum may cause short circuit protection failure, short circuit When the current exceeds 2000A, short circuit protection is not guaranteed,and it is not recommended to perform a short circuit protection test.

Release condition：Load off

    5.Temperature protection

• Discharge high temperature protection：65±5℃
• Charging high temperature protection：60±5℃
• Charge low temperature protection：-15±5℃

    6.Balance

• Balance Start Voltage：3.5±0.05V
• Balance Current：200±50mA
• Balance Mode：Pulse equalization

    7.Powerv consumption of protection board

• Static current consumption：≤150μA

5.Warranty Period & Product Liability

5.1 The shelf life of the battery is 12 months from the date of shipment. The battery should be charged and activated at least once within 3 months after it has been idle. The company will not be responsible for any damage to the battery performance caused by prolonged idle time.

5.2 The Company promises that if the defects of the battery are proved to be caused in the manufacturing process of our company, the company is responsible for the replacement of the battery by the battery, and will not be replaced if the problem is caused by user abuse or misuse.

6.Safety warning

In order to prevent battery leakage, heat, explosion, please observe the following precautions:

Don't put battery into water or seawater, note moist;

Don't the battery near heat sources, such as fire or heater;

When charging, please use the specific charger;

Don't reverse battery is negative;

Do not connect the battery in the power of export;

Do not place the battery in fire or hot items;

Don't across the electrodes of the battery short circuit conductors;

Don't put the battery and the metal conductor, such as necklace, hairpin, etc connected or stored together;

Do not knock or throw the battery;

Don't Pierce the battery with pin or other sharp;

Don't use hammer strike or step on the top;

Don't direct welding power source;

Battery with safety device, in order to guarantee its inherent security features, please don't split the battery or change any part;

Don't charge near the fire or in a hot environment.

Don't put the battery in a microwave oven or pressure in the closet;

Do not put batteries and other chemical battery (such as dry cell) or pooling of different capacity,brand of battery, if the battery scent, fever, discoloration, deformation, or in the use of charge,storage process, any abnormal please immediately from the device or charger, stop using;

Specify the charging time if can't charge please do not continue to charge;

Batteries in the children can't touch place, if children ingest batteries, please immediately go to a doctor;

If the battery leaks or electrolytic gas emit odor, please away from the fire, otherwise leaked solution catches fire, the battery will be on fire;

If the battery leaks or electrolytic into eyes, do not rub eyes, after the application of clean water to rinse the eye doctor, otherwise will cause eye diseases.

Don't put the battery in high temperature place (such as direct sunlight or heat the world in the car), otherwise, will overheat and fire performance degradation or shorten the life.

Safety device, in order to ensure safety, the battery should be installed in the electrostatic manufacturing when required by the electrostatic when do not use, otherwise, the safety device failure, lead to the battery's cells from overheating, rupture, explosion and fire.