2500mah Li-Ion Battery Product Details:
|3||Rated Capacity||2500 mAh（0.2C ）|
|Min. Capacity||2450 mAh（0.2C ）|
|5||Max. Charge Voltage||4.2 V|
|6||Discharge Cut-off Voltage||2.75V|
|7||Max. Charge Current||2.5 A|
|8||Standard Discharging Current||1.3 A|
|9||Max. Continuous Discharge Current||20 A|
|10||Max. Pulse Discharge Current||30A（ 3s pulse ）|
|11||Max. Diameter（include PET）||≤18.40 mm|
|12||Max. Height (include PET)||≤65.50mm|
|14||Impedance （Max. at 1000Hz、charged status）||≤ 18 mΩ|
|15||Charge Method (CC/CV)||Standard||0.5 C ×6hrs|
|Quick||1 C ×1.5hrs.|
|16||Operating Temperature||Charge||0℃～45℃ 32oF～113oF|
Mainly capability graph (For Reference Only)
Without special instructions, the following tests should be done under the condition of : temperature(23℃±3℃), atmospheric pressure (86KPa～106KPa), relative humidity (45%～85%), and the tests should be done within two weeks after receiving the products.
the definitions of some nomenclatures of this specification
世界杯预选赛竞猜standard Charge: Charge with current 0.2C to limit charge voltage under the condition of23℃±3℃ surrounding temperature,then change to charge with constant voltage till the current less than or equal to 0.02C .
|1||Discharge rate capabilities||A）1 C ≥97% B）5 C ≥90% C）10C ≥85%||Standard charged under the condition of normal atmospheric pressure and the environmental temperature of 23℃±3℃ and45%～85%RH, then rest for 30mins and discharge at1C 、5 C 、10 C to the discharge cut-off voltage respectively. Charge/discharge cycle can be conducted for 3times before meeting the Standards（the same below）|
|2||capacity retention and recovery||Residual capacity≥94％Recoverable capacity≥*98％||Standard charged under the condition of normal atmospheric pressure and the environmental temperature of 23℃±3℃，Stored for 28 days, then discharge at 0.2 C to 2.75V measuring residual capacity; Then standard charge/discharge measure recoverable capacity.|
|Low Temperature Performance||discharge capacity≥85% rated capacityno distortion and no rupture||The cell shall be charged in accordance with the standard charge. Then stored in the temperature of -10℃±1℃ for 4h, Discharge at the constant current of 0.2C down to the end-of-discharge voltage 2.750V.|
|4||Cycle Life||2.5A charge/10A discharge cycle ≥500cycles;|
2.5A charge / 20A discharge cycle ≥ 250cycles
|A: 1C charged the cell to 4.2V,then change to charge with constant voltage till the current less than or equal to 0.04C , rest for 30mins; 10A/20A discharge to 2.75V, one cycle is finished, rest for 30mins. Then repeat above steps, when capacity is less than 60% of initial capacity, the battery life is over.|
|1||Overcharge||No fire, No explosion||After standard charge, rest for 10mins; then charge at constant current of 3C to 10V.(or charge at 3C for90mins).|
|Forced discharge||No fire, No explosion||The battery to be discharged with standard discharging condition, Inverse charge current =1C ；time: ≥90mins|
|3||Short Circuit test||No fireNo explosion||The battery to be fully charged with standard charging condition, and short the positive and negative terminalswith wire resistance ≤50mΩ.Tests are to be conductedat 23℃±3℃ and at 55℃ ±5℃, keep 24h or case temperature decline to 20% of the max temperature ,test isover.|
|4||Crush test||No fire, No explosion||A battery is crushed between two flat surfaces. The applied force is 13 kN±1kN by hydrocylinder, Once the maximum pressure has been obtained or voltage decrease to 1/3 of nominal voltage sharply, then release pressure.|
|5||Shock test||No fire, No explosion||The full charged battery is fixed on shock table, to force a certain shock to three mutual vertical direction, in initial3ms, the min. average acceleration is 75gn,the peak acceleration is between 125gn and 175gn.|
|6||Heating test (130°C)||No fire, No explosion||The cells are fully charged with standard charging condition, and put into incubator with nature air or cycled air convected, heat battery by velocity of 5°C ±2°C/min to130°C±2°C,and maintain for 10mins. 电池按标准充满电后放于自然或循环空气对流的恒温 箱中，温度以 5℃/min±2℃的速率升至 130℃±2°C 并保持 10mins。---UL1642|
|Temperature Cycling Test||no leakage, no fire, no explosion||The fully charged batteries are placed in a test chamber and subjected to the following cycles: a) Raising the temperature to 75°C ±2°C within 30 minutes and maintaining this temperature for 6 hours. b) Reducing the temperature to minus 40°C ±2°C within30 minutes and maintaining this temperature for 6 hours. c) Repeating the sequence for a further 9 cycles. d) After the 10th cycle, storing the batteries for 24 hours prior to examination.|
Environment Adaptation Performance
|1||Altitude/Low pressure simulation test||no leakage, no fire, no explosion||The full charged cells are to be stored for 6h at an vaccum environment with pressure of less than 11.6kPa and atemperature of 23℃±3℃.|
|2||Free drop test||no fire, no explosion||The fully charged battery drops on the concrete ground from height(1m),total 3 times,to obtain the shock of random directions.|
|Vibration test||No remarkable damage, No smoking , No explosion||After standard charging, fixed the cell to vibration table and subjected to vibration cycling that the frequency is to be varied at the rate of 1Hz per minutebetween 10Hz and 55Hz,the excursion of the vibration is 1.52mm. The cell shall be vibrated for 90 minutes per axis of x, y axes.|
Storage Temperature for Shipping
世界杯预选赛竞猜If the cell is kept as ex-factory status (50% of charge), the 0.2C recoverable capacity rate is more than 80%.
1 month世界杯预选赛竞猜-20°C ~ 60 °C
2 months-20°C ~ 40 °C
3 months -20℃~ 25 °C
世界杯预选赛竞猜There shall be no such defect as deep scratch, flaw, crack, rust, leakage, which may adversely affect commercial value of the cell.
The cells are packed with JIANGSU SUNPOWER CO.,LTD. standard carton box, which hold four inner boxes. There are 100pcs 18650 cells per inner box. And the inner box and outer box identifies battery capacity, voltage and impedance information.
Warranty Period & Product Liability
Warranty period of this product is 12 months from manufacturing code. JIANGSU SUNPOWER CO., LTD. is not responsible for the troubles caused by mishandling of the battery which is against the instructions in this specification.
Warnings and Cautions in Using the Battery
To prevent a possibility of the battery from leaking, heating or explosion please observe the following precautions:
世界杯预选赛竞猜● When using a new battery for the first time or after long term storage, please use the battery charger specifically for that purpose fully charge the battery before use.
世界杯预选赛竞猜● Do not disassemble or open, crush, bend or deform, puncture, or shred;
● Do not modify or remanufacture, attempt to insert foreign objects into the battery, immerse or expose to water or other liquids such as water, seawater, drinks such as soft drinks, juices, coffee or others, or expose to fire, explosion, or other hazard.
● Do not short circuit a battery or allow metallic or conductive objects to contact the battery terminals.
● Avoid dropping the phone or battery. If the phone or battery is dropped, especially on a hard surface, and the user suspects damage, take it to a service center for inspection.
● The battery replacement shall be done only by either cells supplier or device supplier and never be done by the user.
● Replace the battery only with another battery that has been qualified with the system per standard. Use of an unqualified battery may present a risk of fire, explosion, leakage, or other hazard.
● Don't keep a battery at rest for a long time (over 6 months). Safety accident may happen when recharging battery which has a rest for a long time.
世界杯预选赛竞猜● In the event of a battery leak, do not allow the liquid to come in contact with the skin or eyes. If contact has been made, wash the affected area with large amounts of water and seek medical advice.
世界杯预选赛竞猜● Battery usage by children should be supervised. Seek medical advice immediately if a battery has been swallowed
● Never disassemble cells. The disassembling may generate internal short circuit in the cell, which may cause firing or other problems.
世界杯预选赛竞猜● Never incinerate nor dispose the cells in fire. These may cause firing of the cells, which is very dangerous and is prohibited.
● When use the battery , must to ensure the charge and discharge voltage of the battery is between 2.75V to 4.2V.
● Do not remove the outer sleeve from a battery pack nor cut into its housing.
● Do not mix our batteries with other battery brands or batteries of a different chemistry such as alkaline and zinc carbon.
● Do not mix new batteries in use with semi-used batteries, over-discharge may occur.
● Promptly dispose of used batteries in accordance with local regulations.
世界杯预选赛竞猜The cells might be damaged during shipping by shock. If any abnormal features of the cells are found such as deformation of the cell package, smelling of an electrolyte, an electrolyte leakage and others, the cells shall never be used any more. The Cells with a smell of the electrolyte or a leakage shall be placed away from fire to avoid firing.
世界杯预选赛竞猜The cell shall be stored at the environmental condition of -20℃ - 45℃ and 65%±20% RH. The voltage for long time storage shall be 3.4V-3.6V range. If the cell has to be storied for a long time (Over 3 months), the environmental condition should be: Temperature: 23℃±3℃
世界杯预选赛竞猜Humidity: 65%±20％RH；please activate the battery once every 3 months according to the following method: Charge with current 0.2C until the voltage achieve to 3.6V.